A 66-year-old woman with a history of multiple previous abdominal operations presents with a 2-day history of colicky abdominal pain, vomiting, and absolute constipation. Abdominal examination reveals a distended abdomen with a tender, irreducible mass in the left groin below the inguinal ligament. CT scan confirms a strangulated left femoral hernia containing ischaemic small bowel. At emergency laparotomy, 15 cm of clearly necrotic small bowel is identified. After bowel resection and primary anastomosis, how should the femoral hernia be repaired?
Q212
A 39-year-old manual labourer presents with a painless right groin lump that has been present for 6 months. On examination with the patient standing, there is a bulge in the right groin that extends into the upper scrotum. With the patient lying supine, the lump reduces completely. When you occlude the deep inguinal ring with your finger and ask the patient to cough, no impulse is felt. However, when you release the deep ring, a cough impulse is palpable medial to your finger. What type of hernia does this patient have?
Q213
A 61-year-old man presents with a 6-week history of altered bowel habit, weight loss of 8 kg, and episodes of dark red rectal bleeding. Colonoscopy identifies a semi-circumferential tumour in the sigmoid colon 25 cm from the anal verge. Biopsy confirms adenocarcinoma. Staging CT shows a thickened sigmoid colon with enlarged pericolic lymph nodes but no distant metastases. A single 2.5 cm lesion is identified in segment 6 of the liver. PET-CT confirms both lesions are FDG-avid with no other sites of disease. What is the most appropriate management strategy?
Q214
What is the most common causative organism identified in acute appendicitis leading to perforation?
Q215
A 29-year-old nulliparous woman presents with a 3-day history of right iliac fossa pain and fever. She had a normal menstrual period 2 weeks ago. Pregnancy test is negative. On examination, she has localised tenderness in the right iliac fossa with mild guarding. Temperature is 38.2°C. Blood tests show WCC 15.8 × 10⁹/L and CRP 78 mg/L. Ultrasound scan shows a normal appendix but a 4cm complex right adnexal mass with internal echoes and increased vascularity. What is the most appropriate initial management?
Q216
A 46-year-old woman undergoes laparoscopic appendicectomy for acute appendicitis. Intraoperatively, a 2.5 cm soft, yellow tumour is identified at the tip of the appendix. The appendix is removed and histopathology reports a well-differentiated neuroendocrine tumour confined to the submucosa with clear resection margins. Mitotic count is 1 per 10 high-power fields and Ki-67 index is 1.5%. The mesoappendix is not involved. What is the most appropriate next step in management?
Q217
A 54-year-old man presents with a 4-month history of intermittent fresh rectal bleeding and mucus per rectum. He has noticed a change in bowel habit with increased frequency and tenesmus. Digital rectal examination reveals a palpable mass on the anterior rectal wall 7 cm from the anal verge. Rigid sigmoidoscopy confirms an ulcerated tumour and biopsy shows moderately differentiated adenocarcinoma. MRI pelvis shows a T3 tumour with no mesorectal lymph node involvement. CT chest, abdomen and pelvis shows no evidence of metastatic disease. What is the most appropriate management plan?
Q218
A 17-year-old male presents to the emergency department with a 6-hour history of periumbilical pain that has now localised to the right iliac fossa. He has vomited twice and reports anorexia. On examination, his temperature is 37.8°C, heart rate 95 bpm, and blood pressure 118/76 mmHg. There is tenderness and guarding in the right iliac fossa. What is the most appropriate imaging investigation to confirm the diagnosis?
Q219
A 48-year-old woman presents with right upper quadrant pain radiating to the right shoulder. Ultrasound shows gallstones and a thickened gallbladder wall. During laparoscopic cholecystectomy, the surgical team identifies a firm, indurated mass in the gallbladder fundus. The frozen section confirms adenocarcinoma. The surgeon performs cholecystectomy with a 2 cm margin of liver tissue (segments 4b and 5) around the gallbladder bed. Final histology shows a pT2 gallbladder adenocarcinoma invading the muscular layer with negative resection margins and no lymph node involvement (0/3 nodes examined). What further management is recommended?
Q220
A 70-year-old man undergoes emergency repair of a strangulated left inguinal hernia. During surgery, a segment of incarcerated small bowel is found to be dusky and non-viable. After resection of the affected bowel segment and primary anastomosis, what is the most appropriate method of hernia repair in this situation?
General Surgery UK Medical PG Practice Questions and MCQs
Question 211: A 66-year-old woman with a history of multiple previous abdominal operations presents with a 2-day history of colicky abdominal pain, vomiting, and absolute constipation. Abdominal examination reveals a distended abdomen with a tender, irreducible mass in the left groin below the inguinal ligament. CT scan confirms a strangulated left femoral hernia containing ischaemic small bowel. At emergency laparotomy, 15 cm of clearly necrotic small bowel is identified. After bowel resection and primary anastomosis, how should the femoral hernia be repaired?
A. McVay (Cooper's ligament) repair via low approach
B. Lichtenstein mesh repair via inguinal approach
C. Lockwood repair via low approach without mesh (Correct Answer)
D. Laparoscopic totally extraperitoneal (TEP) repair with mesh
E. High approach (Lotheissen) via extraperitoneal midline incision
Explanation: ***Lockwood repair via low approach without mesh***
- In the setting of **bowel necrosis** and resection, the surgical field is **contaminated**, making the use of **prosthetic mesh** absolutely contraindicated due to the high risk of **infection**.
- The **Lockwood repair** is a simple, **tissue-based repair** performed via a **low approach** (below the inguinal ligament) that directly closes the femoral canal without mesh, ideal for this emergency and contaminated situation.
*McVay (Cooper's ligament) repair via low approach*
- The **McVay repair** is a **tissue-based repair** that can be used for femoral hernias but is typically performed via an **inguinal (trans-inguinal) approach**, not primarily a low approach.
- While it avoids mesh, the Lockwood repair is generally simpler and more direct for immediate closure of the femoral defect from below in an emergency scenario.
*Lichtenstein mesh repair via inguinal approach*
- The **Lichtenstein technique** is primarily used for **inguinal hernias** and inherently involves the placement of **prosthetic mesh**.
- Using mesh is highly inappropriate and dangerous in a **contaminated surgical field** (due to necrotic bowel) as it significantly increases the risk of **chronic mesh infection** and sepsis.
*Laparoscopic totally extraperitoneal (TEP) repair with mesh*
- **TEP repair** is generally reserved for **elective hernia repairs** and is contraindicated in emergencies where **bowel strangulation** is suspected, as it limits bowel viability assessment.
- Moreover, the use of **mesh** in this approach is prohibited in this case due to the **contamination** from the necrotic small bowel, which greatly increases infection risk.
*High approach (Lotheissen) via extraperitoneal midline incision*
- The **Lotheissen approach** provides excellent access to the femoral canal from above, but it is typically more extensive than required once a **laparotomy** has already been performed to address the bowel pathology.
- In an emergency setting following bowel resection, the **low approach (Lockwood)** offers a faster and more direct method for closing the specific femoral defect.
Question 212: A 39-year-old manual labourer presents with a painless right groin lump that has been present for 6 months. On examination with the patient standing, there is a bulge in the right groin that extends into the upper scrotum. With the patient lying supine, the lump reduces completely. When you occlude the deep inguinal ring with your finger and ask the patient to cough, no impulse is felt. However, when you release the deep ring, a cough impulse is palpable medial to your finger. What type of hernia does this patient have?
A. Direct inguinal hernia (Correct Answer)
B. Indirect inguinal hernia
C. Femoral hernia
D. Pantaloon hernia
E. Spigelian hernia
Explanation: ***Direct inguinal hernia***- A **direct inguinal hernia** occurs through a weakness in the **posterior wall** of the inguinal canal (**transversalis fascia**) within **Hesselbach's triangle**, medial to the **inferior epigastric vessels**.- The fact that the **cough impulse** is controlled by occluding the **deep inguinal ring** and only appears **medial** to the fingers upon release is pathognomonic for a direct hernia.*Indirect inguinal hernia*- These hernias enter the inguinal canal via the **deep inguinal ring**, which is located lateral to the **inferior epigastric artery**.- In an **indirect hernia**, occluding the deep ring would **prevent** the lump from appearing entirely; if the impulse were felt lateral to the physician's finger, it would suggest an indirect origin.*Femoral hernia*- **Femoral hernias** pass through the femoral canal and present as a lump **below and lateral** to the **pubic tubercle**.- They are much more common in **females** and carry a high risk of **strangulation** due to the rigid boundaries of the femoral ring.*Pantaloon hernia*- A **pantaloon hernia** is a combination of both an **indirect** and a **direct** inguinal hernia on the same side, straddling the **inferior epigastric vessels**.- This patient's examination specifically demonstrated a medial impulse only, without a simultaneous lateral component through the deep ring.*Spigelian hernia*- This occurs through the **linea semilunaris** at the level of the **arcuate line**, typically lateral to the rectus abdominis muscle.- It is an **interparietal hernia** that presents higher than the inguinal canal and would not extend into the **scrotum**.
Question 213: A 61-year-old man presents with a 6-week history of altered bowel habit, weight loss of 8 kg, and episodes of dark red rectal bleeding. Colonoscopy identifies a semi-circumferential tumour in the sigmoid colon 25 cm from the anal verge. Biopsy confirms adenocarcinoma. Staging CT shows a thickened sigmoid colon with enlarged pericolic lymph nodes but no distant metastases. A single 2.5 cm lesion is identified in segment 6 of the liver. PET-CT confirms both lesions are FDG-avid with no other sites of disease. What is the most appropriate management strategy?
A. Palliative chemotherapy with FOLFOX alone
B. Sigmoid colectomy followed by adjuvant chemotherapy, then delayed liver resection
C. Simultaneous sigmoid colectomy and liver segment 6 resection (Correct Answer)
D. Neoadjuvant chemotherapy followed by sigmoid colectomy only
E. Radiofrequency ablation of liver lesion followed by sigmoid colectomy
Explanation: ***Simultaneous sigmoid colectomy and liver segment 6 resection***
- This patient has **synchronous colorectal liver metastasis (CRLM)** that is solitary and clearly **resectable**, making a curative-intent surgical approach the standard of care.
- **Simultaneous resection** is appropriate for minor liver resections (like segment 6) combined with colon surgery in fit patients, reducing hospital stay and avoiding a second major operation.
*Palliative chemotherapy with FOLFOX alone*
- **Palliative intent** is incorrect because the patient has a solitary, resectable metastasis with no other distant spread, which is **potentially curable**.
- Chemotherapy alone without surgical intervention would fail to address the primary tumor and the **curable metastatic focus**.
*Sigmoid colectomy followed by adjuvant chemotherapy, then delayed liver resection*
- While a **staged approach** is a valid alternative, simultaneous resection is often preferred for **minor liver resections** to minimize overall recovery time and treatment delays.
- Delayed resection is typically reserved for patients needing **complex major hepatectomies** or those at high risk for surgical complications.
*Neoadjuvant chemotherapy followed by sigmoid colectomy only*
- Treating the primary tumor while ignoring a resectable liver lesion would result in **incomplete oncological clearance** of stage IV disease.
- **Resection of all metastatic sites** is necessary to achieve the best long-term survival and potential for cure in colorectal cancer.
*Radiofrequency ablation of liver lesion followed by sigmoid colectomy*
- **Surgical resection** remains the gold standard for resectable liver metastases and is associated with better local control compared to **radiofrequency ablation (RFA)**.
- RFA is generally reserved for patients who are **unfit for surgery** or have small, deep lesions where resection would sacrifice too much healthy liver parenchyma.
Question 214: What is the most common causative organism identified in acute appendicitis leading to perforation?
A. Escherichia coli
B. Bacteroides fragilis (Correct Answer)
C. Streptococcus milleri
D. Enterococcus faecalis
E. Pseudomonas aeruginosa
Explanation: ***Bacteroides fragilis***
- It is the most common **anaerobic organism** identified in perforated appendicitis and is the predominant isolate in subsequent **intra-abdominal abscess** formation.
- This organism possesses a unique **polysaccharide capsule** that facilitates its virulence and its ability to cause significant localized infection following a rupture.
*Escherichia coli*
- While it is the most common **aerobic organism** found in the flora of acute appendicitis, it is generally secondary to anaerobes in perforation dominance.
- It is typically part of a **polymicrobial** infection, but *B. fragilis* is more specifically associated with the complications of perforation and abscess.
*Streptococcus milleri*
- This group is known for its tendency to cause **pyogenic infections** and abscesses, but it is less frequently isolated than the common gut flora in appendicitis.
- It is usually found as part of a **mixed flora** rather than being the primary pathogen leading to perforation.
*Enterococcus faecalis*
- Frequently isolated from peritoneal cultures in cases of **peritonitis**, it is generally considered a **co-pathogen** rather than the primary driver of the infection.
- Most clinical outcomes do not change regardless of whether **Enterococcus** is specifically targeted by the antibiotic regimen in routine appendicitis.
*Pseudomonas aeruginosa*
- This organism is not a typical inhabitant of the appendix and is rarely identified in primary **acute appendicitis** cases.
- Its presence usually suggests a **healthcare-associated infection** or a history of significant prior antibiotic exposure, rather than community-acquired perforation.
Question 215: A 29-year-old nulliparous woman presents with a 3-day history of right iliac fossa pain and fever. She had a normal menstrual period 2 weeks ago. Pregnancy test is negative. On examination, she has localised tenderness in the right iliac fossa with mild guarding. Temperature is 38.2°C. Blood tests show WCC 15.8 × 10⁹/L and CRP 78 mg/L. Ultrasound scan shows a normal appendix but a 4cm complex right adnexal mass with internal echoes and increased vascularity. What is the most appropriate initial management?
A. Laparoscopic appendicectomy
B. Intravenous antibiotics and analgesia (Correct Answer)
C. Emergency laparotomy
D. CT abdomen and pelvis with contrast
E. Diagnostic laparoscopy with possible drainage
Explanation: ***Intravenous antibiotics and analgesia***
- The clinical presentation of **fever**, elevated **WCC** and **CRP**, along with a **complex right adnexal mass** on ultrasound in a young woman, strongly indicates **pelvic inflammatory disease (PID)**, likely complicated by a **tubo-ovarian abscess (TOA)**.
- For a stable patient with a non-ruptured TOA, **broad-spectrum intravenous antibiotics** are the first-line and most appropriate initial management to resolve the infection and reduce the need for surgical intervention.
*Laparoscopic appendicectomy*
- This option is incorrect because the **ultrasound scan** explicitly showed a **normal appendix**, effectively ruling out appendicitis as the cause of the right iliac fossa pain.
- Performing an appendicectomy would not address the underlying **adnexal pathology** and would be an unnecessary surgical procedure.
*Emergency laparotomy*
- **Emergency laparotomy** is a major surgical procedure indicated for patients with signs of **abscess rupture**, **hemodynamic instability**, or severe generalized peritonitis, none of which are present in this stable patient with localized tenderness.
- Initial management for a stable TOA is typically **conservative** with antibiotics; surgery is reserved for cases of failure of medical therapy or complicated rupture.
*CT abdomen and pelvis with contrast*
- While a CT scan can provide more detailed anatomical information, the **ultrasound** has already sufficiently identified the **complex adnexal mass** and excluded appendicitis, guiding the initial management.
- Ordering a CT at this stage would **delay the immediate initiation of intravenous antibiotics**, which is the most critical step for treating a suspected TOA.
*Diagnostic laparoscopy with possible drainage*
- **Surgical drainage** via laparoscopy or laparotomy is usually considered if the patient fails to respond to **48-72 hours of intravenous antibiotics** or if the abscess is very large and critically symptomatic.
- Initiating surgery as the primary management for a stable TOA is generally not recommended, as it carries surgical risks and many TOAs respond well to **medical management** alone.
Question 216: A 46-year-old woman undergoes laparoscopic appendicectomy for acute appendicitis. Intraoperatively, a 2.5 cm soft, yellow tumour is identified at the tip of the appendix. The appendix is removed and histopathology reports a well-differentiated neuroendocrine tumour confined to the submucosa with clear resection margins. Mitotic count is 1 per 10 high-power fields and Ki-67 index is 1.5%. The mesoappendix is not involved. What is the most appropriate next step in management?
A. No further treatment required, discharge with surveillance (Correct Answer)
B. Right hemicolectomy within 6 weeks
C. Adjuvant chemotherapy with 5-fluorouracil
D. Octreotide therapy for 12 months
E. PET-CT scan followed by reassessment
Explanation: ***No further treatment required, discharge with surveillance***
- Appendiceal **Neuroendocrine Tumours (NETs)** that are well-differentiated (G1) with a low **Ki-67 index (<2%)** and confined to the submucosa have a very low risk of metastasis.
- Since the **resection margins** are clear and the **mesoappendix** is not involved, a simple appendicectomy is often curative despite the size being slightly above 2 cm in historical guidelines.
*Right hemicolectomy within 6 weeks*
- This procedure is typically reserved for tumours **>2 cm** with high-risk features such as **mesoappendiceal invasion**, high grade, or positive margins.
- In this specific case, the **favourable histology** (G1) and lack of deep invasion make aggressive surgical re-resection unnecessary.
*Adjuvant chemotherapy with 5-fluorouracil*
- **Adjuvant chemotherapy** is not a standard of care for localised, well-differentiated appendiceal neuroendocrine tumours.
- These tumours are generally **chemo-resistant**, and management focuses on surgical resection and surveillance rather than cytotoxic drugs.
*Octreotide therapy for 12 months*
- **Somatostatin analogues** like octreotide are primarily used to manage symptoms of **carcinoid syndrome** or to control growth in metastatic disease.
- They have no role in the **adjuvant setting** for a completely resected, non-functional localised primary tumour.
*PET-CT scan followed by reassessment*
- **PET-CT (Gallium-68 DOTATATE)** is highly sensitive for staging but is not routinely required after a complete **R0 resection** of a low-grade tumour.
- Surveillance usually involves clinical follow-up and potentially **ultrasound or MRI**, rather than immediate advanced functional imaging.
Question 217: A 54-year-old man presents with a 4-month history of intermittent fresh rectal bleeding and mucus per rectum. He has noticed a change in bowel habit with increased frequency and tenesmus. Digital rectal examination reveals a palpable mass on the anterior rectal wall 7 cm from the anal verge. Rigid sigmoidoscopy confirms an ulcerated tumour and biopsy shows moderately differentiated adenocarcinoma. MRI pelvis shows a T3 tumour with no mesorectal lymph node involvement. CT chest, abdomen and pelvis shows no evidence of metastatic disease. What is the most appropriate management plan?
A. Immediate anterior resection with total mesorectal excision
B. Long-course neoadjuvant chemoradiotherapy followed by anterior resection (Correct Answer)
C. Short-course radiotherapy followed by immediate surgery
D. Local excision via transanal endoscopic microsurgery (TEMS)
E. Palliative chemotherapy with FOLFOX regimen
Explanation: ***Long-course neoadjuvant chemoradiotherapy followed by anterior resection*** - For a **T3 rectal cancer**, especially one located 7 cm from the anal verge (mid-rectum), **long-course neoadjuvant chemoradiotherapy** is the standard management to achieve tumor downstaging. - This approach improves the likelihood of a **negative circumferential resection margin (CRM)**, reduces the risk of **local recurrence**, and enhances the chance of **sphincter preservation** through subsequent **Total Mesorectal Excision (TME)**. *Immediate anterior resection with total mesorectal excision* - **Immediate surgery** is typically reserved for early-stage rectal cancers, such as **T1 or selected T2 N0 tumors**, where the risk of local recurrence and positive margins is low without neoadjuvant therapy. - For a **T3 tumor**, proceeding directly to surgery without neoadjuvant treatment significantly increases the risk of **positive surgical margins** and subsequently higher rates of **local recurrence**. *Short-course radiotherapy followed by immediate surgery* - **Short-course radiotherapy** (e.g., 5 Gy x 5 fractions) followed by immediate surgery is an alternative for certain **T3 rectal cancers**, often those with more favorable features or when rapid treatment is preferred. - However, **long-course chemoradiotherapy** is generally favored for optimal **tumor downstaging** and local control, especially when aiming for sphincter preservation, which is often more critical in mid-rectal tumors. *Local excision via transanal endoscopic microsurgery (TEMS)* - **TEMS** is an organ-preserving technique primarily indicated for very early-stage rectal cancers, specifically well-differentiated **T1 lesions** with no adverse features (e.g., lymphovascular invasion, poor differentiation). - It is not suitable for a **T3 adenocarcinoma** as it does not adequately address the depth of invasion or the potential involvement of **mesorectal lymph nodes**, making it oncologically insufficient. *Palliative chemotherapy with FOLFOX regimen* - **Palliative chemotherapy**, such as the FOLFOX regimen, is indicated for patients with **metastatic (Stage IV) rectal cancer** or unresectable local disease where a cure is not feasible. - This patient has **no evidence of metastatic disease** on CT, indicating a curative intent treatment plan is appropriate, and thus palliative chemotherapy is not the primary management.
Question 218: A 17-year-old male presents to the emergency department with a 6-hour history of periumbilical pain that has now localised to the right iliac fossa. He has vomited twice and reports anorexia. On examination, his temperature is 37.8°C, heart rate 95 bpm, and blood pressure 118/76 mmHg. There is tenderness and guarding in the right iliac fossa. What is the most appropriate imaging investigation to confirm the diagnosis?
A. Plain abdominal radiograph
B. Ultrasound of the abdomen and pelvis (Correct Answer)
C. CT abdomen and pelvis with intravenous contrast
D. MRI abdomen and pelvis
E. Diagnostic laparoscopy
Explanation: ***Ultrasound of the abdomen and pelvis*** - In a **young patient** with suspected **acute appendicitis**, ultrasound is the most appropriate first-line imaging investigation to avoid **ionizing radiation**.- Key sonographic findings include a **non-compressible, dilated appendix** (>6mm diameter), a **target sign**, and the presence of **periappendiceal fluid**.*Plain abdominal radiograph* - This modality has **low sensitivity** and specificity for appendicitis and is generally not useful for confirming the diagnosis.- It is typically reserved for ruling out other pathologies like **bowel obstruction** or **perforation** (pneumoperitoneum).*CT abdomen and pelvis with intravenous contrast* - While CT has the **highest sensitivity and specificity**, it is avoided as a first-line choice in children and young adults due to **radiation exposure**.- It should be reserved as a second-line investigation if the ultrasound results are **equivocal** or technically difficult to obtain.*MRI abdomen and pelvis* - MRI is highly accurate but is not the first-line investigation due to **higher cost**, limited availability, and longer acquisition times.- It is primarily indicated for suspected appendicitis in **pregnant patients** when ultrasound is non-diagnostic.*Diagnostic laparoscopy* - This is an **invasive procedure** that is typically considered both a diagnostic and therapeutic tool rather than an initial imaging test.- It is reserved for cases where clinical suspicion remains high but **non-invasive imaging** has failed to provide a clear diagnosis.
Question 219: A 48-year-old woman presents with right upper quadrant pain radiating to the right shoulder. Ultrasound shows gallstones and a thickened gallbladder wall. During laparoscopic cholecystectomy, the surgical team identifies a firm, indurated mass in the gallbladder fundus. The frozen section confirms adenocarcinoma. The surgeon performs cholecystectomy with a 2 cm margin of liver tissue (segments 4b and 5) around the gallbladder bed. Final histology shows a pT2 gallbladder adenocarcinoma invading the muscular layer with negative resection margins and no lymph node involvement (0/3 nodes examined). What further management is recommended?
A. No further surgery required; proceed with adjuvant chemotherapy
B. Re-operation for formal anatomical liver resection (segments 4b/5) and portal lymphadenectomy (Correct Answer)
C. Re-operation for radical cholecystectomy with excision of all port sites
D. Completion right hemihepatectomy and lymphadenectomy
E. Observation only with regular surveillance imaging
Explanation: ***Re-operation for formal anatomical liver resection (segments 4b/5) and portal lymphadenectomy***
- For **pT2 gallbladder adenocarcinoma**, standard management requires an **extended cholecystectomy**, which includes anatomical resection of the liver bed (**segments 4b/5**) and a formal **portal lymphadenectomy**.
- Although a 2 cm margin was achieved, only **3 lymph nodes** were examined, which is insufficient for adequate staging; a minimum of **6 lymph nodes** is recommended for accurate oncological clearance and prognosis.
*No further surgery required; proceed with adjuvant chemotherapy*
- While **adjuvant chemotherapy** (e.g., **GEMOX** or **CAPOX**) is often considered for pT2 disease, it cannot replace the necessity of an **adequate oncological surgical resection**.
- **Simple cholecystectomy** or non-anatomical wedge resections are only considered sufficient for **pT1a** tumors (limited to the mucosa).
*Re-operation for radical cholecystectomy with excision of all port sites*
- While **port site excision** was historically performed to prevent recurrence, current evidence suggests it does not improve **overall survival** and is no longer routinely recommended for all stages, especially without confirmed metastasis.
- The primary focus of re-operation should be achieving a formal **lymphadenectomy** and ensuring adequate anatomical liver parenchymal margins.
*Completion right hemihepatectomy and lymphadenectomy*
- A **right hemihepatectomy** is an unnecessarily radical procedure for **pT2 disease** involving the gallbladder fundus and carries significantly higher **morbidity** than segment 4b/5 resection.
- This extensive procedure is typically reserved for cases with **T3 or T4 disease** involving deeper liver invasion or major hepatic vasculature.
*Observation only with regular surveillance imaging*
- Observation is inappropriate for **pT2 tumors** as there is a high risk of **occult lymphatic metastasis** and local recurrence without radical surgery.
- Radical re-resection for incidental pT2 gallbladder cancer is proven to significantly improve **disease-free survival** and **overall survival** compared to observation alone.
Question 220: A 70-year-old man undergoes emergency repair of a strangulated left inguinal hernia. During surgery, a segment of incarcerated small bowel is found to be dusky and non-viable. After resection of the affected bowel segment and primary anastomosis, what is the most appropriate method of hernia repair in this situation?
A. Tension-free mesh repair using polypropylene mesh
B. Bassini repair (tissue repair without mesh) (Correct Answer)
C. Lichtenstein repair with antibiotic-coated mesh
D. Laparoscopic totally extraperitoneal (TEP) repair with mesh
E. Primary closure of defect with delayed mesh repair at 6 months
Explanation: ***Bassini repair (tissue repair without mesh)***- In the presence of **non-viable bowel** requiring resection, the surgical field is considered **contaminated**, making the use of synthetic mesh contraindicated due to the high risk of **mesh infection**.- **Tissue-based repairs**, such as the Bassini or Shouldice techniques, are the safest choice to reinforce the posterior wall while avoiding the complications of a permanent **foreign body** in a potentially infected site.*Tension-free mesh repair using polypropylene mesh*- Standard **polypropylene mesh** is highly susceptible to bacterial colonization and biofilm formation in a **contaminated field**.- Using mesh in this scenario significantly increases the risk of chronic wound infection, **fistula formation**, and the eventual need for surgical **mesh removal**.*Lichtenstein repair with antibiotic-coated mesh*- Although **antibiotic-coated meshes** are designed to reduce infection risk, they are generally insufficient to overcome the high bacterial load present after **bowel resection**.- The gold standard for emergency repairs involving **strangulated bowel** remains a non-prosthetic, **primary tissue repair** to ensure patient safety.*Laparoscopic totally extraperitoneal (TEP) repair with mesh*- The **TEP approach** is contraindicated in emergency settings where there is a risk of **bowel ischemia** or the need for a laparotomy/resection.- Placing a mesh in the **preperitoneal space** during a contaminated case would trap bacteria and likely lead to a deep-seated, difficult-to-treat **abscess**.*Primary closure of defect with delayed mesh repair at 6 months*- **Primary closure** without a formal repair technique (like Bassini) results in an unacceptably high **recurrence rate** even in the short term.- While a delayed repair is an option for later, the initial surgery must still provide some anatomic reinforcement via **tissue-to-tissue repair** rather than simple closure.
