Gastrointestinal Surgery Practice Questions

Q: Pelvic abscess can present with all symptoms except:

bleeding rectum. ***bleeding rectum*** - A **bleeding rectum** is not a typical presentation of a pelvic abscess. It might suggest other conditions like hemorrhoids, colorectal cancer, or inflammatory bowel disease. - Pelvic abscesses are collections of pus in the pelvic cavity, and while they can cause various gastrointestinal symptoms due to local inflammation and pressure, direct rectal bleeding is generally not among them. *pain abdomen* - **Abdominal pain** is a very common symptom of a pelvic abscess, often localized to the lower abdomen. - This pain is caused by inflammation, pressure, and irritation of surrounding organs and tissues. *diarrhea with mucus discharge* - A pelvic abscess can cause irritation to the adjacent **bowel segments**, leading to changes in bowel habits such as diarrhea. - The presence of **mucus discharge** can also be a sign of bowel irritation or inflammation, which can occur secondary to a nearby abscess. *fever* - **Fever** is a classic systemic sign of infection and inflammation, and thus is almost always present in patients with an abscess, including a pelvic abscess. - The body's inflammatory response to the infection typically elevates body temperature.

Q: All of the following statements regarding gallstones are true except :

They are mostly radio opaque. ***They are mostly radio opaque*** - Only about **10-20% of gallstones** are sufficiently calcified to be visible on a plain abdominal radiograph. - The majority of gallstones, especially **cholesterol stones**, are radiolucent and are best visualized by ultrasound. *They can cause intestinal obstruction* - This statement is true. A large gallstone can erode through the gallbladder wall into the small intestine, typically the duodenum, leading to a gallstone ileus. - **Gallstone ileus** is a rare form of mechanical bowel obstruction caused by a gallstone impaction, usually in the terminal ileum. *They can lead to acute cholangitis by slipping into the common bile duct* - This statement is true. Gallstones can migrate from the gallbladder into the **common bile duct (CBD)**, obstructing bile flow and leading to **choledocholithiasis**. - Obstruction of the CBD by gallstones, especially with superimposed bacterial infection, can cause **acute cholangitis**. *Mixed stones are the commonest type* - This statement is true. **Mixed gallstones**, which contain a combination of cholesterol, calcium salts, and bilirubin, are the most prevalent type of gallstones. - Pure cholesterol stones and pure pigment stones (black or brown) are less common than mixed stones.

Q: All of the following signs are considered in Alvarado score for acute appendicitis except

Rectal tenderness. ***Rectal tenderness*** - While rectal tenderness can be a sign of appendicitis, it is **not included in the Alvarado score**. The Alvarado score focuses on more direct indicators of peritoneal irritation and systemic response. - The score is composed of symptoms like **migratory right iliac fossa pain**, anorexia, nausea/vomiting, and signs like right iliac fossa tenderness, rebound tenderness, elevated temperature, leukocytosis and shift to the left. *Elevated temperature* - An **elevated body temperature** (fever) is a recognized component of the Alvarado score, indicating a systemic inflammatory response. - This sign contributes one point to the total score. *Rebound tenderness* - **Rebound tenderness** in the right lower quadrant is a crucial sign of peritoneal irritation and is explicitly included in the Alvarado score. - This clinical finding contributes one point to the total score. *Right iliac fossa tenderness* - **Tenderness in the right iliac fossa** (RLQ tenderness) is a primary clinical sign of appendicitis and is a significant component of the Alvarado score. - This sign contributes two points to the total score, reflecting its importance.

Q: Which one of the following nerves is vulnerable to injury while conducting an appendicectomy through the McBurney's incision ?

Ilio-inguinal nerve. ***Ilio-inguinal nerve*** - The **ilio-inguinal nerve** runs anterior to the **quadratus lumborum muscle** and enters the **transversus abdominis muscle**, lying between it and the internal oblique muscle. It is especially vulnerable at the lateral edge of the **rectus abdominis.** - **McBurney's incision**, which is an **oblique incision** in the **right lower quadrant**, may damage the ilioinguinal nerve as it exits the deep inguinal ring. *Subcostal nerve* - The **subcostal nerve** is the ventral ramus of **T12**, and it runs inferior to the **12th rib**. - It usually lies significantly superior to the **McBurney’s incision** site, making injury unlikely during this specific procedure. *Lateral cutaneous nerve of the thigh* - The **lateral cutaneous nerve of the thigh** arises from the **lumbar plexus (L2-L3)** and innervates the skin of the lateral thigh. - It traverses near the **anterior superior iliac spine**, which is not typically within the primary field of a **McBurney’s incision**. *Genitofemoral nerve* - The **genitofemoral nerve** originates from the **L1 and L2 spinal nerves** and descends retroperitoneally. - It is located deep and medial to the region of **McBurney’s incision**, making direct injury during this superficial abdominal incision less probable.

Q: Dumping syndrome can occur after

Billroth-II operation. ***Billroth-II operation*** - This procedure involves a **gastrojejunostomy** where the stomach is connected directly to the jejunum, bypassing the duodenum. This design allows for rapid emptying of gastric contents into the small intestine. - The rapid transit of **hyperosmolar chyme** into the small bowel draws fluid into the lumen, leading to symptoms like abdominal pain, bloating, diarrhea, and vasomotor symptoms (e.g., palpitations, sweating) [1]. *Whipple's operation* - While it involves extensive gastrointestinal reconstruction, a **Whipple's operation** (pancreaticoduodenectomy) typically includes a gastrojejunostomy that is less prone to severe dumping than a Billroth II, as it often preserves a significant portion of the duodenum or creates a more controlled gastric outflow. - The primary aim of a Whipple is to resect the head of the pancreas, duodenum, gallbladder, and bile duct, with subsequent reconstruction involving multiple anastomoses, but usually not one specifically designed to rapidly empty into the jejunum without duodenal transit. *Nissen fundoplication* - This procedure is performed to treat **gastroesophageal reflux disease (GERD)** by wrapping the top of the stomach (fundus) around the lower esophagus to strengthen the lower esophageal sphincter. - It aims to prevent reflux, not to alter the rate of gastric emptying in a way that typically causes dumping syndrome. *Heller's operation* - **Heller's myotomy** is a surgical procedure to treat **achalasia**, a disorder where the lower esophageal sphincter fails to relax properly. It involves cutting the muscle fibers of the lower esophageal sphincter to facilitate the passage of food into the stomach. - This operation addresses a motility issue of the esophagus and generally does not affect gastric emptying in a manner that leads to dumping syndrome.

Q: What is the most common hernia in females?

Inguinal hernia. ***Inguinal hernia*** - **Inguinal hernias** are the most common type of hernia in females, accounting for approximately **70% of all hernias** in women. - While less common in females than males, inguinal hernias still represent the majority of hernias in the female population. - They occur through the **inguinal canal** and can be either indirect (through the deep inguinal ring) or direct (through Hesselbach's triangle). - Present as a **bulge in the groin** above the inguinal ligament. *Femoral hernia* - **Femoral hernias** are the second most common hernia in females, accounting for approximately 30% of hernias in women. - They have a **higher female-to-male ratio** compared to inguinal hernias (femoral hernias are more common in women than men relatively). - Occur through the **femoral canal** below the inguinal ligament, medial to the femoral vein. - Higher risk of **strangulation** due to the rigid boundaries of the femoral ring. - This option is incorrect because despite being relatively more common in females than males, femoral hernias are still **less common than inguinal hernias** in the female population overall. *Spigelian hernia* - A rare type of hernia occurring through the **Spigelian aponeurosis**, lateral to the rectus abdominis muscle. - Not specifically more common in females and represents a small fraction of all hernias. *Obturator hernia* - A very rare hernia passing through the **obturator foramen**. - More common in elderly, thin females but still extremely rare overall. - May present with **Howship-Romberg sign** (inner thigh pain on hip extension/rotation) due to obturator nerve compression.

Q: A young male is undergoing emergency surgery for a clinical diagnosis of acute appendicitis. Intraoperatively minimal pus was found but the appendix was normal. What is the next step of management?

Search for perforated Meckel’s diverticulum. ***Search for perforated Meckel's diverticulum*** - When the appendix appears normal despite a strong clinical suspicion of appendicitis and **minimal pus** is present, it is crucial to investigate for alternative causes of **right lower quadrant pain** and localized peritonitis. - A **Meckel's diverticulum** is the most common congenital anomaly of the gastrointestinal tract (present in ~2% of population) and can mimic appendicitis when inflamed or perforated, necessitating a thorough search in such scenarios. - Standard practice: Examine the **terminal ileum up to 2 feet proximal to the ileocecal valve** to identify Meckel's diverticulum. *Close the abdomen without doing anything* - Closing the abdomen without identifying the source of the minimal pus and the patient's symptoms would be an **incomplete and potentially negligent** approach. - Doing so risks leaving an **undiagnosed and untreated problem**, which could lead to severe complications such as ongoing sepsis or perforation. *Right hemicolectomy* - **Right hemicolectomy** is an extensive surgical procedure typically reserved for conditions like large bowel obstructions, advanced tumors, or severe inflammatory bowel disease. - Performing a right hemicolectomy based on minimal pus and a normal appendix would be an **overly aggressive and inappropriate response** without a clear indication. *Appendectomy* - While an **incidental appendectomy** of a normal-appearing appendix is sometimes performed to prevent future diagnostic confusion, this alone **does not address the immediate problem**. - The critical error here is **failing to identify the source of the pus** that was found intraoperatively. Simply removing a normal appendix leaves the underlying pathology untreated. - The presence of pus mandates a thorough exploration to find its source—most commonly a **Meckel's diverticulum** in this clinical scenario.

Q: A 35 year old male patient comes to casualty with acute pain abdomen; and on examination found to have cold, clammy extremities, sunken eyes, dry tongue, thready pulse, drawn and anxious face with abdominal guarding and rigidity. This clinical picture indicates:

Diffuse late peritonitis. ***Diffuse late peritonitis*** - The combination of **cold, clammy extremities**, **thready pulse**, **sunken eyes**, **dry tongue**, and an **anxious face** points to significant **systemic inflammatory response syndrome (SIRS)** and **hypovolemic shock**, which are characteristic of late-stage peritonitis. - **Abdominal guarding and rigidity** indicate widespread peritoneal irritation, and the systemic signs confirm that this is a late-stage, diffuse process, rather than localized or early. *Acute cholecystitis* - While it causes **acute pain in the abdomen**, it is typically localized to the **right upper quadrant** and does not usually present with the severe systemic signs of **shock** described (e.g., cold extremities, thready pulse) unless complications like perforation have occurred. - The generalized abdominal guarding and rigidity suggest a more diffuse inflammatory process beyond a single inflamed organ. *Local peritonitis* - This condition involves inflammation of a specific area of the peritoneum, leading to **localized tenderness**, guarding, and rebound tenderness, but typically **without the widespread systemic signs of shock and severe hypovolemia** seen in this patient. - The description of a "drawn and anxious face" and global signs of shock indicate a more widespread, serious condition. *Diffuse early peritonitis* - **Early diffuse peritonitis** would present with generalized abdominal pain, guarding, and rigidity, but the severe systemic signs of **shock** (e.g., cold, clammy extremities, thready pulse, sunken eyes) are usually not as pronounced or absent. - The patient's presentation with **profound signs of hypovolemia and systemic compromise** indicates a more advanced, "late" stage of the disease where fluid shifts and septic shock are already established.

Q: A 35 year old man presents to Emergency with acute onset pain abdomen radiating to whole abdomen and abdominal distension for one day. On examination, he has tenderness and guarding all over abdomen with pulse rate of 100/m and BP 116/84 mmHg. Chest X-ray erect position shows gas under bilateral domes of diaphragm. Probably he is suffering from:

Gastric perforation. ***Gastric perforation*** - The presence of **bilateral pneumoperitoneum** (gas under both domes of diaphragm) on erect chest X-ray is **pathognomonic for hollow viscus perforation**, with gastric/duodenal perforations being the most common cause. - The clinical presentation of **acute onset generalized abdominal pain**, **tenderness and guarding all over abdomen**, combined with bilateral free air perfectly matches **gastric perforation**. *Acute pancreatitis* - Typically presents with severe **epigastric pain radiating to the back**, often with elevated **serum amylase/lipase**, but does **NOT cause pneumoperitoneum**. - While severe pancreatitis can cause peritonitis, it involves **inflammatory exudate** rather than free air under the diaphragm. *Appendicular perforation* - Usually presents with **localized right iliac fossa pain** initially before generalizing, unlike the immediate generalized presentation described. - Though perforation can cause pneumoperitoneum, it's **less likely to cause prominent bilateral free air** compared to upper GI perforations. *Ruptured liver abscess* - Would typically have a preceding history of **fever, right upper quadrant pain**, and systemic signs of infection before rupture. - Rupture releases **purulent material and exudate** into the peritoneum rather than free air, so **pneumoperitoneum would not be present**.

Question 1

Pelvic abscess can present with all symptoms except:

Accepted Answer

bleeding rectum

Answer

pain abdomen

Answer

diarrhea with mucus discharge

Answer

fever

Question 2

All of the following statements regarding gallstones are true except :

Accepted Answer

They are mostly radio opaque

Answer

They can cause intestinal obstruction

Answer

They can lead to acute cholangitis by slipping into the common bile duct

Answer

Mixed stones are the commonest type

Question 3

All of the following signs are considered in Alvarado score for acute appendicitis except

Accepted Answer

Rectal tenderness

Answer

Elevated temperature

Answer

Rebound tenderness

Answer

Right iliac fossa tenderness

Question 4

Which one of the following nerves is vulnerable to injury while conducting an appendicectomy through the McBurney's incision ?

Accepted Answer

Ilio-inguinal nerve

Answer

Subcostal nerve

Answer

Lateral cutaneous nerve of the thigh

Answer

Genitofemoral nerve

Question 5

The following statements regarding Meckel's diverticulum in adults are true except

Accepted Answer

It usually presents on the mesenteric border of small intestine

Answer

Bleeding is a common complication

Answer

Incidental removal is often recommended in younger patients with risk factors

Answer

It is a remnant of omphalomesenteric duct

Question 6

Dumping syndrome can occur after

Accepted Answer

Billroth-II operation

Answer

Whipple's operation

Answer

Nissen fundoplication

Answer

Heller's operation

Question 7

What is the most common hernia in females?

Accepted Answer

Inguinal hernia

Answer

Femoral hernia

Answer

Obturator hernia

Answer

Spigelian hernia

Question 8

A young male is undergoing emergency surgery for a clinical diagnosis of acute appendicitis. Intraoperatively minimal pus was found but the appendix was normal. What is the next step of management?

Accepted Answer

Search for perforated Meckel’s diverticulum

Answer

Close the abdomen without doing anything

Answer

Right hemicolectomy

Answer

Appendectomy

Question 9

A 35 year old male patient comes to casualty with acute pain abdomen; and on examination found to have cold, clammy extremities, sunken eyes, dry tongue, thready pulse, drawn and anxious face with abdominal guarding and rigidity. This clinical picture indicates:

Accepted Answer

Diffuse late peritonitis

Answer

Acute cholecystitis

Answer

Local peritonitis

Answer

Diffuse early peritonitis

Question 10

A 35 year old man presents to Emergency with acute onset pain abdomen radiating to whole abdomen and abdominal distension for one day. On examination, he has tenderness and guarding all over abdomen with pulse rate of 100/m and BP 116/84 mmHg. Chest X-ray erect position shows gas under bilateral domes of diaphragm. Probably he is suffering from:

Accepted Answer

Gastric perforation

Answer

Acute pancreatitis

Answer

Appendicular perforation

Answer

Ruptured liver abscess

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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