Urology Practice Questions

Q: A 12-year-old boy presents with acute onset of painful scrotal swelling. What is the immediate management?

Perform Doppler ultrasound. **Explanation:** The clinical presentation of acute onset painful scrotal swelling in a 12-year-old boy must be treated as **Testicular Torsion** until proven otherwise. Testicular torsion is a surgical emergency where the spermatic cord twists, leading to ischemia and potential necrosis of the testis. **Why Option A is Correct:** **Color Doppler Ultrasound** is the gold standard initial investigation for an acute scrotum. It has high sensitivity and specificity to assess blood flow. A finding of absent or decreased flow confirms torsion, while increased flow suggests inflammatory conditions like epididymo-orchitis. In a clinical setting, if Doppler is unavailable and suspicion is high, immediate surgical exploration is indicated. **Why Other Options are Incorrect:** * **B & C (Analgesics/Bed Rest):** These are supportive measures but do not address the underlying mechanical obstruction. Delaying diagnosis to provide symptomatic relief increases the risk of testicular loss (the "golden period" for salvage is within 6 hours). * **D (Antibiotics):** These are used for epididymo-orchitis. While epididymo-orchitis also causes painful swelling, it is more common in post-pubertal males and usually presents with fever and pyuria. Treating empirically with antibiotics without ruling out torsion can lead to testicular gangrene. **High-Yield Clinical Pearls for NEET-PG:** * **Golden Period:** Testicular salvage rate is ~100% if detorsion occurs within 6 hours, dropping to <10% after 24 hours. * **Prehn’s Sign:** Elevation of the scrotum relieves pain in epididymitis but **not** in torsion (Negative Prehn's sign). * **Cremasteric Reflex:** Usually **absent** in testicular torsion; its presence makes torsion unlikely. * **Deformity:** Torsion is often associated with a "Bell-clapper deformity" (high-riding, horizontal testis).

Q: A 65-year-old male presents with a lump on the lower back, hematuria, weight loss, and night sweats. Investigations reveal an 8 cm renal cell carcinoma involving abdominal lymph nodes, but no distant metastasis. What is the most appropriate management for this patient?

Radical nephrectomy. ### Explanation **Correct Option: D. Radical Nephrectomy** The patient presents with the classic triad of Renal Cell Carcinoma (RCC)—flank mass, hematuria, and weight loss—along with constitutional symptoms. The tumor is 8 cm (Stage T3a or higher depending on invasion) with regional lymph node involvement but **no distant metastasis**. For **localized or locally advanced RCC (Stage I, II, and III)**, the gold standard and definitive treatment is **Radical Nephrectomy**. Unlike many other solid tumors, RCC is notoriously **resistant to chemotherapy and radiation**. Therefore, surgical excision of the kidney, Gerota’s fascia, and regional lymph nodes remains the primary curative modality. Even in the presence of nodal involvement (Stage III), surgery offers the best chance for survival and symptom control. **Why other options are incorrect:** * **A & C (Radiation):** RCC is a **radioresistant** tumor. Radiation is never the primary treatment; it is reserved only for palliation of painful bone metastases or brain involvement. * **B (Chemotherapy):** RCC is highly **chemoresistant** due to the high expression of the MDR-1 (multidrug resistance) gene. If systemic therapy is needed (Stage IV), targeted immunotherapy (e.g., Sunitinib, Pembrolizumab) is used, not conventional chemotherapy. **Clinical Pearls for NEET-PG:** * **Classic Triad:** Hematuria, flank pain, and palpable mass (seen in only 10% of cases, usually signifies advanced disease). * **Most common histological type:** Clear cell RCC (arises from Proximal Convoluted Tubule). * **Staging Tip:** T1 is ≤7 cm; T2 is >7 cm (limited to kidney). This patient’s 8 cm tumor is at least T2. * **Robson’s Classification:** Historically used for RCC staging, though TNM is now preferred. * **Paraneoplastic Syndromes:** RCC is the "Internist's Tumor" (can cause polycythemia, hypercalcemia, and hypertension).

Q: Thyrotoxic myopathy most commonly affects which group of muscles?

Proximal limb muscles. **Explanation:** Thyrotoxic myopathy is a common neuromuscular complication of hyperthyroidism, occurring in up to 60-80% of patients with untreated thyrotoxicosis. **Why Proximal Limb Muscles are Correct:** The condition characteristically presents as **chronic thyrotoxic myopathy**, which primarily involves **proximal muscle weakness and wasting**. The pelvic girdle (hips/thighs) is usually affected more severely and earlier than the shoulder girdle. The underlying pathophysiology involves increased protein catabolism, altered carbohydrate metabolism, and mitochondrial dysfunction induced by excess thyroid hormones (T3/T4), which preferentially affects the large, metabolically active proximal muscle groups. **Analysis of Incorrect Options:** * **A. Muscles of the neck:** While neck flexors can occasionally be weak, they are not the "most common" site compared to the limbs. * **C. Distal limb muscles:** Distal involvement (hands/feet) is rare in thyrotoxicosis. If distal weakness is prominent, clinicians should investigate other pathologies like motor neuron disease or peripheral neuropathy. * **D. Muscles of the tongue:** Bulbar involvement (tongue, swallowing) is rare and usually only seen in severe, acute cases or when associated with Myasthenia Gravis. **High-Yield Clinical Pearls for NEET-PG:** * **Clinical Sign:** Patients often report difficulty climbing stairs or rising from a chair (Gower’s-like presentation). * **Reflexes:** Unlike most myopathies, deep tendon reflexes (DTRs) are typically **preserved or even brisk** in thyrotoxic myopathy. * **Association:** Hyperthyroidism is strongly associated with **Myasthenia Gravis** (1% of thyrotoxic patients have MG) and **Hypokalemic Periodic Paralysis** (especially in Asian males). * **CK Levels:** Interestingly, Serum Creatine Kinase (CK) levels are usually **normal** in thyrotoxic myopathy, despite significant wasting.

Q: A 50-year-old male with a positive family history of prostate cancer presents for screening. What is the most sensitive screening test to detect prostate cancer?

Digital Rectal Examination (DRE) combined with PSA test. **Explanation:** The screening for prostate cancer relies on the principle of maximizing sensitivity to detect the disease at an early, treatable stage. **Why Option C is correct:** The combination of **Digital Rectal Examination (DRE) and Prostate-Specific Antigen (PSA)** is the most sensitive screening approach. While PSA is a highly sensitive organ-specific marker, it can be elevated in benign conditions (BPH, prostatitis). Conversely, some aggressive cancers do not significantly raise PSA levels but can be detected as palpable nodules on DRE. Using both tests together compensates for the limitations of each, significantly increasing the **Positive Predictive Value (PPV)** and overall detection rate compared to using either test alone. **Why other options are incorrect:** * **Option A (DRE alone):** Has low sensitivity as it only detects tumors in the posterior and lateral aspects of the gland that are large enough to be palpable. * **Option B (PSA alone):** While more sensitive than DRE, it lacks specificity and may miss small, palpable nodules that are not yet producing high systemic PSA levels. * **Option D (MRI):** While Multiparametric MRI (mpMRI) is excellent for localization and staging (PI-RADS scoring), it is not used as a primary screening tool due to high costs and lack of accessibility. **High-Yield Clinical Pearls for NEET-PG:** * **Age to start screening:** Usually 50 years for average risk; 45 years for high risk (positive family history or African American race). * **PSA Cut-off:** Generally >4 ng/mL is considered suspicious, but age-specific PSA ranges are more accurate. * **Free/Total PSA Ratio:** A ratio <10% suggests a higher risk of malignancy. * **Definitive Diagnosis:** Transrectal Ultrasound (TRUS) guided biopsy (usually 12-core biopsy) remains the gold standard for diagnosis.

Q: Zuska's syndrome, common in smokers, causes which of the following conditions?

Chronic areolar abscess. **Explanation:** **Zuska’s Syndrome** (also known as Zuska’s disease or Smoker’s Mastitis) is a condition characterized by a triad of **retroareolar abscess, chronic discharging fistula, and nipple retraction.** 1. **Why Option B is Correct:** The underlying pathophysiology involves **squamous metaplasia of the lactiferous ducts**. In smokers, the toxic effects of cigarette smoke lead to the replacement of the normal cuboidal epithelium of the ducts with squamous cells. These cells produce keratin, which plugs the ducts, leading to stasis, infection, and the formation of a **chronic recurrent areolar abscess**. Because the underlying cause (metaplasia) persists, these abscesses frequently recur and form fistulous tracts (fistula-at-the-nipple). 2. **Why Other Options are Incorrect:** * **Option A & D:** While Zuska’s involves an abscess, it is specifically a **chronic, recurrent** condition related to ductal metaplasia. "Acute mastitis" and "Acute abscess" usually refer to lactational infections caused by *Staphylococcus aureus* entering through nipple cracks, which is a different clinical entity. * **Option C:** Fibroadenosis (ANDI) refers to benign cyclical breast pain and lumpiness related to hormonal changes, not an inflammatory or infectious process involving squamous metaplasia. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factor:** Smoking is the strongest independent risk factor (strong association with squamous metaplasia). * **Management:** Simple incision and drainage often lead to recurrence. The definitive treatment is the **Hadfield’s Procedure** (Total excision of the major lactiferous ducts). * **Differential Diagnosis:** Must be distinguished from periductal mastitis and mammary duct ectasia.

Q: All of the following are true about testicular dysgenesis syndrome EXCEPT:

Epispadias. **Testicular Dysgenesis Syndrome (TDS)** is a clinical concept suggesting that several male reproductive disorders share a common developmental origin during fetal life, often linked to environmental endocrine disruptors and genetic factors. ### **Why Epispadias is the Correct Answer** **Epispadias** is a congenital malformation where the urethra opens on the dorsal (upper) surface of the penis. It is primarily a defect in the migration of the cloacal membrane and is frequently associated with **bladder exstrophy**. It is **not** part of the TDS spectrum. ### **Analysis of Incorrect Options (Components of TDS)** The TDS hypothesis includes four main clinical manifestations resulting from impaired Leydig and Sertoli cell function during embryogenesis: * **Cryptorchidism (Option A):** Failure of testicular descent is a hallmark of TDS due to hormonal imbalances (low testosterone/INSL3). * **Hypospadias (Option C):** An opening of the urethra on the ventral (underside) of the penis, resulting from incomplete fusion of urethral folds under insufficient androgenic stimulation. * **Poor Sperm Motility/Infertility (Option D):** TDS leads to impaired spermatogenesis, manifested as low sperm count and poor motility in adulthood. * **Testicular Germ Cell Tumors (TGCT):** Though not listed in the options, this is the fourth major component of the syndrome. ### **High-Yield Clinical Pearls for NEET-PG** * **The TDS Tetrad:** 1. Cryptorchidism, 2. Hypospadias, 3. Reduced Semen Quality, 4. Testicular Cancer. * **Pathogenesis:** It is thought to be caused by a "window of susceptibility" in the first trimester where androgen action is disrupted. * **Hypospadias vs. Epispadias:** Remember **"Ventral = Hypospadias (TDS)"** and **"Dorsal = Epispadias (Exstrophy complex)."** * **Most common site of Hypospadias:** Glanular/Distal (most common); **Most common site of Cryptorchidism:** Inguinal canal.

Question 1

A 12-year-old boy presents with acute onset of painful scrotal swelling. What is the immediate management?

Accepted Answer

Perform Doppler ultrasound

Answer

Administer analgesics

Answer

Prescribe bed rest

Answer

Initiate antibiotics

Question 2

A 65-year-old male presents with a lump on the lower back, hematuria, weight loss, and night sweats. Investigations reveal an 8 cm renal cell carcinoma involving abdominal lymph nodes, but no distant metastasis. What is the most appropriate management for this patient?

Accepted Answer

Radical nephrectomy

Answer

Radiation followed by nephrectomy

Answer

Chemotherapy

Answer

Radiation

Question 3

Thyrotoxic myopathy most commonly affects which group of muscles?

Accepted Answer

Proximal limb muscles

Answer

Muscles of the neck

Answer

Distal limb muscles

Answer

Muscles of the tongue

Question 4

Which fruit juice helps in preventing urinary tract infections (UTI)?

Accepted Answer

Cranberry

Answer

Raspberry

Answer

Orange

Answer

Grape

Question 5

A 50-year-old male with a positive family history of prostate cancer presents for screening. What is the most sensitive screening test to detect prostate cancer?

Accepted Answer

Digital Rectal Examination (DRE) combined with PSA test

Answer

Digital Rectal Examination (DRE)

Answer

Prostate-Specific Antigen (PSA) test

Answer

Endorectal Coil MRI with T1W and T2W images

Question 6

Ectopic ureter is most commonly associated with which of the following?

Accepted Answer

Hydronephrosis

Answer

Oliguria

Answer

Bilateral hydroureter

Answer

All of the above

Question 7

Which of the following statements is true regarding testicular tumors?

Accepted Answer

None of the above statements are true.

Answer

Embryonal cell carcinomas occur in approximately 95% of cases.

Answer

Testicular tumors are bilateral in up to 10% of cases.

Answer

Teratomas are more common than seminomas.

Question 8

What is the treatment of choice for a 4cm retroperitoneal lymph node mass in a patient with non-seminomatous germ cell tumor of the testis?

Accepted Answer

High orchidectomy plus retroperitoneal lymph node dissection (RPLND)

Answer

Radical radiotherapy alone

Answer

Retroperitoneal lymph node dissection (RPLND) alone

Answer

High orchidectomy alone

Question 9

Zuska's syndrome, common in smokers, causes which of the following conditions?

Accepted Answer

Chronic areolar abscess

Answer

Acute mastitis

Answer

Fibroadenosis

Answer

Acute abscess formation

Question 10

All of the following are true about testicular dysgenesis syndrome EXCEPT:

Accepted Answer

Epispadias

Answer

Cryptorchidism

Answer

Hypospadias

Answer

Poor sperm motility

Urology — MCQs

Urology — MCQs

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