A 36-year-old woman presents with a 15-week history of profound fatigue, low-grade fever (37.5-37.9°C), and generalized myalgia. She works as a nurse and had a viral upper respiratory tract infection 4 months ago from which she feels she has never fully recovered. She reports exercise intolerance with symptom exacerbation after minimal physical activity that lasts for days. Examination and extensive blood tests including FBC, TFTs, CRP, ferritin, coeliac screen, and autoimmune screen are all normal. What is the most appropriate management approach?
Q52
A 71-year-old woman presents with a 13-week history of progressive fatigue and generalized weakness. She reports difficulty rising from chairs and climbing stairs. She has lost 7kg in weight and complains of muscle aches. Examination reveals proximal muscle weakness in both upper and lower limbs, with violaceous discoloration over her eyelids and erythematous papules over the knuckles. Blood tests show: Hb 121 g/L, CRP 42 mg/L, ESR 65 mm/hr, creatine kinase 3,420 U/L (normal <200), ALT 98 U/L. Which investigation should be prioritized to guide management?
Q53
A 42-year-old man presents with a 10-week history of intermittent fever up to 38.9°C, associated with rigors and profuse sweating. He returned from a 6-month contract working in Nigeria 4 months ago. He took malaria prophylaxis irregularly. Blood films taken during fever spikes have been negative for malaria parasites on three occasions. He has lost 5kg in weight. Examination shows mild hepatomegaly but is otherwise unremarkable. Initial blood tests show normocytic anaemia (Hb 105 g/L) and raised inflammatory markers (CRP 78 mg/L). What is the most appropriate next step in management?
Q54
A 58-year-old woman presents with a 14-week history of unintentional weight loss of 8kg and persistent fatigue. She has no significant past medical history. On examination, she appears pale with blood pressure 118/72 mmHg and pulse 88 bpm regular. Abdominal examination reveals a palpable mass in the left upper quadrant. Blood tests show: Hb 98 g/L (normal 120-150), MCV 76 fL (normal 80-100), ferritin 8 μg/L (normal 15-200), WCC 12.1 × 10⁹/L, platelets 542 × 10⁹/L. What is the single most appropriate next investigation?
Q55
A 44-year-old woman presents with a 19-week history of widespread pain affecting her neck, back, arms, and legs, associated with profound fatigue and poor sleep quality. Pain scores average 7/10 and are present most days. She has been extensively investigated with normal blood tests, imaging, and rheumatology review which found no evidence of inflammatory arthritis. She is struggling to continue working as a teacher. Which of the following management approaches represents best practice according to current UK guidance?
Q56
A 53-year-old woman presents with a 14-week history of fatigue, anorexia, and 6kg weight loss. She mentions feeling generally unwell with vague abdominal discomfort and frequent headaches. She has a history of vitiligo and type 1 diabetes diagnosed in childhood. Blood tests show Na+ 128 mmol/L, K+ 5.4 mmol/L, urea 8.2 mmol/L, creatinine 95 μmol/L, and random glucose 3.8 mmol/L. What is the single most important immediate investigation?
Q57
A 70-year-old woman presents with a 10-week history of progressive fatigue and generalized weakness. She reports difficulty climbing stairs and rising from a chair. She has noticed a rash on her knuckles and eyelids. Blood tests show Hb 125 g/L, ESR 42 mm/hr, creatine kinase 3,450 U/L, ALT 156 U/L, and positive anti-Jo-1 antibodies. In the context of her undifferentiated presentation, screening for which associated condition is most important?
Q58
A 39-year-old man presents with a 15-week history of fever up to 38.4°C occurring 2-3 times weekly, associated with severe night sweats requiring bed sheet changes, and 9kg weight loss. He reports generalized itching worse after showering. Examination reveals firm, non-tender lymphadenopathy in the cervical and axillary regions, with the largest node measuring 2.5cm. Blood tests show Hb 108 g/L, WCC 11.2 × 10⁹/L with lymphocytosis, ESR 68 mm/hr, and LDH 890 U/L. What is the most appropriate investigation to establish the diagnosis?
Q59
A 62-year-old man presents with a 12-week history of fatigue, poor appetite, and 8kg weight loss. He has a history of alcohol excess (80 units per week) and chronic hepatitis C infection. Examination reveals cachexia, jaundice, and ascites. Liver function tests show bilirubin 145 μmol/L, ALT 98 U/L, ALP 456 U/L, albumin 28 g/L, and INR 1.8. Alpha-fetoprotein is 890 ng/mL. What is the most appropriate immediate action?
Q60
A 48-year-old woman presents with a 7-week history of right upper quadrant pain. She describes the pain as constant, dull in nature, and rates it 4/10 in severity. It is not related to eating and is not relieved by simple analgesia. She has lost 3kg in weight and feels generally fatigued. Examination reveals mild hepatomegaly with a smooth, non-tender liver edge 2cm below the costal margin. What additional pain characteristic would be most concerning and warrant urgent investigation?
Undifferentiated Symptoms UK Medical PG Practice Questions and MCQs
Question 51: A 36-year-old woman presents with a 15-week history of profound fatigue, low-grade fever (37.5-37.9°C), and generalized myalgia. She works as a nurse and had a viral upper respiratory tract infection 4 months ago from which she feels she has never fully recovered. She reports exercise intolerance with symptom exacerbation after minimal physical activity that lasts for days. Examination and extensive blood tests including FBC, TFTs, CRP, ferritin, coeliac screen, and autoimmune screen are all normal. What is the most appropriate management approach?
A. Refer for graded exercise therapy programme
B. Prescribe a trial of prednisolone 20mg daily
C. Explain diagnosis of chronic fatigue syndrome and offer pacing strategies and supportive management (Correct Answer)
D. Request CT chest, abdomen and pelvis to exclude malignancy
E. Arrange sleep study to exclude sleep apnoea
Explanation: ***Explain diagnosis of chronic fatigue syndrome and offer pacing strategies and supportive management***
- This patient presents with hallmark features of **Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS)**, including profound fatigue for over 3 months, **post-exertional malaise**, myalgia, low-grade fever, and normal extensive investigations.
- Current guidelines (e.g., NICE 2021) recommend validating the diagnosis, educating patients, and implementing **pacing strategies** (energy management) to prevent symptom exacerbation, alongside supportive symptom management.
*Refer for graded exercise therapy programme*
- **Graded Exercise Therapy (GET)** is no longer recommended for ME/CFS, as it can worsen symptoms and lead to severe **post-exertional malaise** in many patients.
- This approach is largely considered harmful and has been superseded by energy management techniques that respect individual energy envelopes.
*Prescribe a trial of prednisolone 20mg daily*
- There is no evidence supporting the use of **corticosteroids** in the treatment of ME/CFS, and they carry significant side effects.
- With normal inflammatory markers like **CRP** and a negative autoimmune screen, there is no indication for immunosuppression in this context.
*Request CT chest, abdomen and pelvis to exclude malignancy*
- The extensive **normal blood tests** (FBC, CRP, ferritin) significantly reduce the likelihood of an underlying malignancy.
- In the absence of specific red flag symptoms such as unexplained **weight loss**, night sweats, or localized findings, a broad CT scan is not warranted and exposes the patient to unnecessary radiation.
*Arrange sleep study to exclude sleep apnoea*
- While fatigue is a symptom, the cardinal feature in this case is **post-exertional malaise** following minimal activity, which is not characteristic of **Obstructive Sleep Apnoea (OSA)**.
- The patient lacks typical OSA symptoms such as loud **snoring**, witnessed apnoeas, or risk factors like obesity.
Question 52: A 71-year-old woman presents with a 13-week history of progressive fatigue and generalized weakness. She reports difficulty rising from chairs and climbing stairs. She has lost 7kg in weight and complains of muscle aches. Examination reveals proximal muscle weakness in both upper and lower limbs, with violaceous discoloration over her eyelids and erythematous papules over the knuckles. Blood tests show: Hb 121 g/L, CRP 42 mg/L, ESR 65 mm/hr, creatine kinase 3,420 U/L (normal <200), ALT 98 U/L. Which investigation should be prioritized to guide management?
A. Electromyography and nerve conduction studies
B. CT chest, abdomen and pelvis (Correct Answer)
C. Muscle biopsy with histology and immunohistochemistry
D. Autoantibody screen including anti-Jo-1 and anti-Mi-2
E. Urgent MRI of the brain and spinal cord
Explanation: ***CT chest, abdomen and pelvis*** - This patient presents with classic features of **dermatomyositis**, including proximal muscle weakness, elevated creatine kinase, violaceous discoloration over the eyelids (**heliotrope rash**), and erythematous papules over the knuckles (**Gottron's papules**). - In a 71-year-old with dermatomyositis and unexplained **weight loss**, there is a high association with **paraneoplastic malignancy**, making an extensive search for cancer a top priority to guide overall management.*Electromyography and nerve conduction studies* - While EMG can demonstrate the **myopathic changes** characteristic of dermatomyositis, such as small, polyphasic motor unit potentials and spontaneous activity, it primarily confirms the diagnosis of myositis. - This investigation does not address the crucial need to screen for an **underlying malignancy**, which is a life-threatening complication and a primary concern in elderly patients with new-onset dermatomyositis.*Muscle biopsy with histology and immunohistochemistry* - A muscle biopsy is the **gold standard** for confirming dermatomyositis, showing characteristic **perifascicular atrophy** and inflammation. - However, given the strong clinical and laboratory evidence for dermatomyositis in an older patient with **weight loss**, the immediate management priority shifts to ruling out an **associated malignancy** rather than solely confirming the muscle pathology.*Autoantibody screen including anti-Jo-1 and anti-Mi-2* - An autoantibody screen, including myositis-specific antibodies like **anti-Jo-1** (associated with interstitial lung disease and arthritis) and **anti-Mi-2** (associated with classic dermatomyositis), helps classify the myositis subtype and predict complications. - While useful for prognostication, these tests do not directly aid in the urgent detection of an **occult malignancy**, which is paramount in this clinical scenario.*Urgent MRI of the brain and spinal cord* - This investigation is not indicated here as the symptoms and signs, including **proximal muscle weakness**, significantly elevated **creatine kinase**, and specific **cutaneous manifestations**, are highly suggestive of a primary muscle disease (myopathy). - There are no features pointing towards a central or peripheral neurological cause requiring neuroimaging, and it would not help in the search for an **underlying malignancy** in the chest or abdomen.
Question 53: A 42-year-old man presents with a 10-week history of intermittent fever up to 38.9°C, associated with rigors and profuse sweating. He returned from a 6-month contract working in Nigeria 4 months ago. He took malaria prophylaxis irregularly. Blood films taken during fever spikes have been negative for malaria parasites on three occasions. He has lost 5kg in weight. Examination shows mild hepatomegaly but is otherwise unremarkable. Initial blood tests show normocytic anaemia (Hb 105 g/L) and raised inflammatory markers (CRP 78 mg/L). What is the most appropriate next step in management?
A. Repeat thick and thin blood films daily for 3 consecutive days
B. Empirical treatment with artemether-lumefantrine
C. Malaria rapid diagnostic test (RDT) only
D. Request PCR testing for Plasmodium species (Correct Answer)
E. CT chest, abdomen and pelvis to investigate fever of unknown origin
Explanation: ***Request PCR testing for Plasmodium species***
- **PCR testing** is significantly more sensitive than microscopy and is the preferred next step when a strong clinical suspicion of malaria persists despite **three negative blood films**.
- It is particularly useful for detecting **low-level parasitaemia**, which may occur when a patient has taken irregular prophylaxis or has a chronic presentation after several months.
*Repeat thick and thin blood films daily for 3 consecutive days*
- While the standard protocol is to perform three films over 72 hours, this patient has **already had three negative films** during fever spikes, making further microscopy less likely to yield a result than more sensitive tests.
- Progression to **molecular diagnostics** (PCR) is indicated when microscopy fails to confirm a diagnosis in a high-risk symptomatic traveler.
*Empirical treatment with artemether-lumefantrine*
- **Empirical treatment** is generally reserved for critically ill patients who cannot wait for diagnostic confirmation; this patient is stable despite his 10-week history.
- Modern clinical practice emphasizes **diagnostic confirmation** prior to initiating antimalarials to prevent resistance and ensure the correct species is targeted.
*Malaria rapid diagnostic test (RDT) only*
- **RDTs** are helpful for quick screening but generally have a lower sensitivity for **low parasite densities** compared to PCR.
- Utilizing an RDT alone would be insufficient in this case as it may not provide more information than the three negative microscopy films already obtained.
*CT chest, abdomen and pelvis to investigate fever of unknown origin*
- Although the patient meets criteria for **Fever of Unknown Origin (FUO)**, common infectious causes linked to travel must be definitively excluded first.
- **CT imaging** is a premature and resource-intensive step before completing specialized infectious disease investigations like **PCR** or blood cultures for systemic parasites and bacteria.
Question 54: A 58-year-old woman presents with a 14-week history of unintentional weight loss of 8kg and persistent fatigue. She has no significant past medical history. On examination, she appears pale with blood pressure 118/72 mmHg and pulse 88 bpm regular. Abdominal examination reveals a palpable mass in the left upper quadrant. Blood tests show: Hb 98 g/L (normal 120-150), MCV 76 fL (normal 80-100), ferritin 8 μg/L (normal 15-200), WCC 12.1 × 10⁹/L, platelets 542 × 10⁹/L. What is the single most appropriate next investigation?
A. Urgent CT chest, abdomen and pelvis (Correct Answer)
B. Upper gastrointestinal endoscopy and colonoscopy
C. Bone marrow biopsy
D. FBC repeat in 2 weeks with reticulocyte count
E. Faecal immunochemical test (FIT)
Explanation: ***Urgent CT chest, abdomen and pelvis***
- The patient presents with multiple **red flag features** including significant unintentional **weight loss**, a **palpable abdominal mass**, and severe **iron deficiency anemia**, strongly suggesting an underlying **malignancy**.
- A **CT scan of the chest, abdomen, and pelvis** is the most appropriate initial investigation to characterize the left upper quadrant mass, assess for **lymphadenopathy**, and detect potential **metastatic disease**, guiding further management.
*Upper gastrointestinal endoscopy and colonoscopy*
- While **iron deficiency anemia** often necessitates **bidirectional endoscopy**, the presence of a **palpable abdominal mass** and significant weight loss makes comprehensive cross-sectional imaging a more urgent and appropriate first step.
- Endoscopy primarily evaluates the luminal aspects of the GI tract and would not effectively characterize an **extra-luminal** or **retroperitoneal mass**, which could be responsible for the physical finding.
*Bone marrow biopsy*
- Although the patient has **anemia** and **reactive thrombocytosis**, these are more likely secondary to the suspected **malignancy** or chronic iron deficiency rather than a primary hematological disorder.
- This invasive procedure is not indicated as the initial diagnostic step until common **solid organ malignancies** and gastrointestinal causes have been excluded via imaging.
*FBC repeat in 2 weeks with reticulocyte count*
- Delaying further investigation by merely repeating blood tests is inappropriate given the presence of **alarming red flag features** like significant unintentional weight loss and a **palpable abdominal mass**.
- The current blood test results already confirm significant pathology (microcytic anemia, very low ferritin, thrombocytosis) that mandates immediate and definitive diagnostic workup.
*Faecal immunochemical test (FIT)*
- **FIT** is primarily a screening tool for **occult faecal blood** and is not appropriate as the initial investigation in a symptomatic patient with a **palpable abdominal mass**, significant weight loss, and established **iron deficiency anemia**.
- Clinical guidelines dictate that patients with **red flag features** such as a palpable mass or unexplained iron deficiency anemia require direct visualization or imaging, bypassing less specific screening tests.
Question 55: A 44-year-old woman presents with a 19-week history of widespread pain affecting her neck, back, arms, and legs, associated with profound fatigue and poor sleep quality. Pain scores average 7/10 and are present most days. She has been extensively investigated with normal blood tests, imaging, and rheumatology review which found no evidence of inflammatory arthritis. She is struggling to continue working as a teacher. Which of the following management approaches represents best practice according to current UK guidance?
A. Prescribe regular paracetamol and ibuprofen for pain control
B. Explain diagnosis of fibromyalgia and offer graded exercise programme with amitriptyline (Correct Answer)
C. Refer for cognitive behavioural therapy as primary intervention
D. Arrange trial of oral corticosteroids for possible undiagnosed inflammatory condition
E. Prescribe strong opioids to enable return to work
Explanation: ***Explain diagnosis of fibromyalgia and offer graded exercise programme with amitriptyline***
- The patient's presentation of widespread chronic pain, profound fatigue, and poor sleep quality over 19 weeks, with normal investigations and no evidence of inflammatory arthritis, is highly characteristic of **fibromyalgia**.
- Current UK guidance (NICE) for chronic primary pain advocates a **multimodal approach**, including a positive diagnosis, patient education, **graded exercise programs**, and low-dose **amitriptyline** to manage pain and improve sleep.
*Prescribe regular paracetamol and ibuprofen for pain control*
- **Simple analgesics** like paracetamol and **NSAIDs** like ibuprofen have demonstrated very limited efficacy in managing the widespread, neuropathic-like pain of **fibromyalgia**.
- Routine use of these medications is not recommended as primary treatment in chronic primary pain syndromes according to current **NICE guidelines**.
*Refer for cognitive behavioural therapy as primary intervention*
- While **CBT** is a valuable intervention for chronic pain management, helping with coping strategies and psychological distress, it is typically part of a **multimodal treatment plan** rather than a standalone primary intervention.
- Initial management should encompass a broader approach including education, physical activity, and appropriate pharmacotherapy for symptom relief.
*Arrange trial of oral corticosteroids for possible undiagnosed inflammatory condition*
- This approach is inappropriate as the patient has already undergone extensive investigation, including a **rheumatology review** and blood tests, which found **no evidence of inflammation** or inflammatory arthritis.
- Administering **corticosteroids** without an inflammatory diagnosis would expose the patient to unnecessary side effects without addressing the underlying **fibromyalgia** pathology.
*Prescribe strong opioids to enable return to work*
- **Strong opioids** are explicitly not recommended for the long-term management of **chronic primary pain**, including **fibromyalgia**, due to their high risks of **dependence**, addiction, and lack of sustained efficacy.
- Opioids rarely improve functional outcomes or quality of life in chronic non-cancer pain and can lead to worsened pain (opioid-induced hyperalgesia) over time.
Question 56: A 53-year-old woman presents with a 14-week history of fatigue, anorexia, and 6kg weight loss. She mentions feeling generally unwell with vague abdominal discomfort and frequent headaches. She has a history of vitiligo and type 1 diabetes diagnosed in childhood. Blood tests show Na+ 128 mmol/L, K+ 5.4 mmol/L, urea 8.2 mmol/L, creatinine 95 μmol/L, and random glucose 3.8 mmol/L. What is the single most important immediate investigation?
A. Short synacthen test
B. Serum cortisol level
C. CT abdomen and pelvis
D. 9am cortisol and ACTH levels (Correct Answer)
E. Thyroid function tests
Explanation: ***9am cortisol and ACTH levels***
- The patient's symptoms (fatigue, anorexia, weight loss, vague abdominal discomfort, headaches), history of **vitiligo** and **type 1 diabetes** (suggesting **autoimmune polyendocrine syndrome**), and lab findings (**hyponatremia**, **hyperkalemia**, **hypoglycemia**) are highly indicative of **adrenal insufficiency** (Addison's disease).
- A **9am cortisol** level is the most appropriate initial screening test due to the **circadian rhythm** of cortisol, providing a reliable baseline, and concurrent **ACTH** helps differentiate primary from secondary adrenal insufficiency.
*Short synacthen test*
- This test, also known as an **ACTH stimulation test**, is the gold standard for **confirming adrenal insufficiency** but is typically performed *after* an initial screening test (like 9am cortisol) suggests a deficiency.
- It assesses the adrenal glands' reserve capacity to produce cortisol in response to exogenous ACTH, but it is not the *immediate* first-line screening investigation.
*Serum cortisol level*
- A **random serum cortisol** level is often unreliable due to significant **diurnal variation** in cortisol secretion throughout the day.
- Without a specific time of day (like 9 am, when cortisol is typically at its peak), a random result can be misleading and lead to misdiagnosis or unnecessary further investigations.
*CT abdomen and pelvis*
- Imaging studies like **CT of the abdomen and pelvis** are used to investigate the **underlying cause** of adrenal insufficiency (e.g., adrenal hemorrhage, adrenal malignancy, or atrophy) *after* the diagnosis has been biochemically established.
- It is not an initial diagnostic test for evaluating adrenal function or the acute metabolic derangements seen in this patient.
*Thyroid function tests*
- While **autoimmune polyendocrine syndrome** often includes **thyroid dysfunction**, the patient's prominent **hyponatremia**, **hyperkalemia**, and **hypoglycemia** are characteristic of adrenal insufficiency and represent more immediate life-threatening concerns.
- Although important to evaluate as part of a comprehensive workup for autoimmune conditions, it is not the **single most important immediate investigation** given the acute electrolyte and glucose abnormalities.
Question 57: A 70-year-old woman presents with a 10-week history of progressive fatigue and generalized weakness. She reports difficulty climbing stairs and rising from a chair. She has noticed a rash on her knuckles and eyelids. Blood tests show Hb 125 g/L, ESR 42 mm/hr, creatine kinase 3,450 U/L, ALT 156 U/L, and positive anti-Jo-1 antibodies. In the context of her undifferentiated presentation, screening for which associated condition is most important?
A. Interstitial lung disease (Correct Answer)
B. Ischaemic heart disease
C. Oesophageal dysmotility
D. Renal impairment
E. Peripheral neuropathy
Explanation: ***Interstitial lung disease***
- The patient's presentation with **proximal muscle weakness**, classic **Gottron's papules** on knuckles, **heliotrope rash** on eyelids, elevated **creatine kinase**, and **positive anti-Jo-1 antibodies** is highly indicative of **dermatomyositis** with **antisynthetase syndrome**.
- **Anti-Jo-1 antibodies** are strongly associated with **interstitial lung disease (ILD)**, which can affect 70-80% of patients with antisynthetase syndrome and is a significant cause of mortality, making screening crucial.
*Ischaemic heart disease*
- While systemic inflammatory conditions can increase overall **cardiovascular risk**, there is no specific or direct strong association between **anti-Jo-1 antibodies** and acute **ischaemic heart disease**.
- Cardiac involvement in inflammatory myopathies is more typically **myocarditis** or conduction abnormalities, rather than primary coronary artery disease.
*Oesophageal dysmotility*
- **Oesophageal dysmotility** and **dysphagia** are common manifestations in inflammatory myopathies due to involvement of pharyngeal and upper esophageal striated muscles, posing a risk for **aspiration**.
- Although clinically important, **interstitial lung disease** is a more prevalent and life-threatening systemic complication specifically linked to **anti-Jo-1 antibodies** compared to oesophageal issues, making it the most critical screening target.
*Renal impairment*
- **Renal involvement** is generally **uncommon** in patients with dermatomyositis or polymyositis.
- Severe **rhabdomyolysis** with massive muscle breakdown can rarely lead to **acute kidney injury** due to myoglobinuria, but this is not a primary or direct manifestation of the disease or specifically linked to **anti-Jo-1 antibodies** for routine screening.
*Peripheral neuropathy*
- **Peripheral neuropathy** is not considered a characteristic feature or direct complication of inflammatory myopathies like dermatomyositis, which primarily target **skeletal muscle fibers**.
- The presence of neurological deficits beyond muscle weakness would suggest an alternative or co-existing condition, such as **vasculitis** or a **paraneoplastic syndrome** affecting nerves.
Question 58: A 39-year-old man presents with a 15-week history of fever up to 38.4°C occurring 2-3 times weekly, associated with severe night sweats requiring bed sheet changes, and 9kg weight loss. He reports generalized itching worse after showering. Examination reveals firm, non-tender lymphadenopathy in the cervical and axillary regions, with the largest node measuring 2.5cm. Blood tests show Hb 108 g/L, WCC 11.2 × 10⁹/L with lymphocytosis, ESR 68 mm/hr, and LDH 890 U/L. What is the most appropriate investigation to establish the diagnosis?
A. CT chest, abdomen and pelvis with contrast
B. Bone marrow aspiration and trephine
C. Excisional lymph node biopsy (Correct Answer)
D. Fine needle aspiration of largest lymph node
E. Flow cytometry on peripheral blood
Explanation: ***Excisional lymph node biopsy***
- This is the **gold standard** for diagnosing **lymphoma** because it preserves the **tissue architecture**, which is crucial for accurate subtyping and immunohistochemistry, essential for identifying **Reed-Sternberg cells** in Hodgkin lymphoma.
- The patient's presentation with **B-symptoms** (fever, night sweats, weight loss), **aquagenic pruritus**, and **lymphadenopathy** is highly suggestive of lymphoma, necessitating a definitive histological diagnosis.
*CT chest, abdomen and pelvis with contrast*
- This imaging study is primarily used for **staging** lymphoma according to the Ann Arbor classification, determining the extent of the disease once a diagnosis has already been established.
- It cannot provide a **histological diagnosis** or differentiate between various lymphoma subtypes or benign reactive lymphadenopathy.
*Bone marrow aspiration and trephine*
- This procedure is typically performed to assess for **bone marrow involvement** (part of staging) rather than being the primary diagnostic test for initial diagnosis of peripheral lymphadenopathy.
- While it can detect lymphoma cells, it does not provide the comprehensive **lymph node architecture** necessary for the initial diagnosis and subtyping of lymphoma.
*Fine needle aspiration of largest lymph node*
- **FNA** is often insufficient for diagnosing lymphoma because it yields individual cells and **lacks the intact nodal architecture** crucial for accurate classification and subtyping.
- It is more appropriate for confirming **metastatic carcinoma** or infectious etiologies but is generally not the initial diagnostic choice for suspected lymphoma.
*Flow cytometry on peripheral blood*
- This test is most useful for diagnosing conditions where malignant cells are present in the bloodstream, such as **leukemias** (e.g., CLL) or identifying abnormal lymphocyte populations.
- It is generally **not diagnostic for localized lymphomas**, which require a solid tissue biopsy to observe cellular morphology and architectural changes within the lymph node.
Question 59: A 62-year-old man presents with a 12-week history of fatigue, poor appetite, and 8kg weight loss. He has a history of alcohol excess (80 units per week) and chronic hepatitis C infection. Examination reveals cachexia, jaundice, and ascites. Liver function tests show bilirubin 145 μmol/L, ALT 98 U/L, ALP 456 U/L, albumin 28 g/L, and INR 1.8. Alpha-fetoprotein is 890 ng/mL. What is the most appropriate immediate action?
A. Arrange 2-week wait referral to upper GI surgery
B. Request urgent ultrasound abdomen within 2 weeks
C. Refer urgently to hepatology via local cancer pathway
D. Arrange same-day hospital assessment (Correct Answer)
E. Request CT abdomen and pelvis and review results before referral
Explanation: ***Arrange same-day hospital assessment***
- The patient presents with clear signs of **liver decompensation**, including **jaundice**, **ascites**, low **albumin**, and a prolonged **INR (1.8)**.
- The elevated **Alpha-fetoprotein (890 ng/mL)** and history of chronic **Hepatitis C** strongly suggest **Hepatocellular Carcinoma (HCC)**, necessitating urgent stabilization and management in a hospital setting.
*Arrange 2-week wait referral to upper GI surgery*
- This referral pathway is primarily intended for suspected **oesophageal** or **gastric cancers**, not typically for primary liver pathology or acute liver decompensation.
- Given the signs of **acute liver failure** or severe decompensation, an outpatient 2-week referral is dangerously delayed for this patient.
*Request urgent ultrasound abdomen within 2 weeks*
- While an **ultrasound** is crucial for diagnosing HCC, waiting up to two weeks is inappropriate for a patient presenting with **cachexia**, **jaundice**, and **ascites**.
- Diagnostic imaging should be performed as part of an **immediate hospital admission** where results can be rapidly acted upon and supportive care provided.
*Refer urgently to hepatology via local cancer pathway*
- Although urgent **hepatology consultation** is needed for suspected **HCC**, the presence of **acute decompensation** requires emergency admission over an outpatient cancer pathway referral.
- A standard cancer pathway referral does not provide the immediate medical stabilization and management required for significant **synthetic liver dysfunction**.
*Request CT abdomen and pelvis and review results before referral*
- Delaying clinical action to await **CT scan** results in primary care is inappropriate when the patient displays significant **jaundice**, **ascites**, and **cachexia**.
- The priority is **immediate stabilization** and a comprehensive diagnostic workup in a secondary care setting due to the high risk of rapid deterioration.
Question 60: A 48-year-old woman presents with a 7-week history of right upper quadrant pain. She describes the pain as constant, dull in nature, and rates it 4/10 in severity. It is not related to eating and is not relieved by simple analgesia. She has lost 3kg in weight and feels generally fatigued. Examination reveals mild hepatomegaly with a smooth, non-tender liver edge 2cm below the costal margin. What additional pain characteristic would be most concerning and warrant urgent investigation?
A. Pain radiating to the right shoulder tip
B. Pain worse on deep inspiration
C. Progressive increase in pain severity over recent weeks (Correct Answer)
D. Pain associated with nausea
E. Pain disturbing sleep at night
Explanation: ***Progressive increase in pain severity over recent weeks***
- The patient's presentation with persistent RUQ pain, unexplained **weight loss**, fatigue, and hepatomegaly raises suspicion for **malignancy**. A **progressive increase in pain severity** is a cardinal red flag for an active and worsening pathological process, such as **hepatocellular carcinoma** or **metastatic liver disease**.
- This symptom, when combined with systemic indicators like weight loss and hepatomegaly, necessitates **urgent and comprehensive investigation** to rule out rapidly progressing severe conditions.
*Pain radiating to the right shoulder tip*
- **Right shoulder tip pain** is typically referred pain caused by irritation of the **diaphragm** (via the phrenic nerve), often seen in conditions like **biliary colic**, cholecystitis, or subphrenic abscess.
- While indicating pathology, it is a localized symptom of diaphragmatic irritation and does not inherently suggest a **progressively worsening systemic disease** as strongly as increasing pain severity.
*Pain worse on deep inspiration*
- Pain exacerbated by deep inspiration, or **pleuritic pain**, suggests involvement of the **parietal peritoneum** or the **Glisson's capsule** (fibrous capsule surrounding the liver), common in conditions like **liver inflammation**, abscess, or pleurisy.
- This symptom, while indicative of local inflammation, does not carry the same urgent implication for a rapidly advancing, potentially malignant process as a *progressive increase in pain severity* in the context of systemic symptoms.
*Pain associated with nausea*
- **Nausea** is a common and highly **non-specific symptom** that can accompany a vast array of gastrointestinal and systemic conditions, ranging from benign to severe.
- Its presence alone, without more specific accompanying features, does not elevate the level of concern for **urgent malignancy investigation** as significantly as a progressively worsening pain pattern coupled with weight loss and hepatomegaly.
*Pain disturbing sleep at night*
- **Nocturnal pain** is generally considered a **red flag** for **organic pathology** as opposed to functional pain, and it can be present in both benign and malignant conditions.
- However, a **progressive increase in pain severity** over time, especially when combined with systemic symptoms like unexplained weight loss and fatigue, provides a more direct and urgent indicator of an active, worsening, and potentially life-threatening process than pain disturbing sleep alone.
