Gastroenterology Practice Questions

Q: A patient with a history of alcohol dependence syndrome presents with sudden and unintentional weight loss. What is the most likely diagnosis?

Hepatocellular carcinoma. ***Hepatocellular carcinoma*** - The **alpha-fetoprotein (AFP)** level of **600 ng/mL** is significantly elevated, suggesting a diagnosis of hepatocellular carcinoma, especially in a patient with a history of **alcohol dependence syndrome** [1]. - The **AST/ALT ratio of 0.5** indicates significant liver damage, commonly seen in chronic liver disease leading to **hepatocellular cancer**. *Alcoholic hepatitis* - Typically presents with **elevated AST and ALT**, usually with a ratio >2:1, which is not the case here [2]. - May cause weight loss, as alcoholic patients often lose weight due to self-neglect and poor dietary intake, but the **elevated AFP** is not characteristic of merely alcoholic hepatitis [3]. *Cholangiocarcinoma* - This type of cancer primarily presents with **biliary obstruction** symptoms, such as jaundice, which is not indicated here given **normal bilirubin levels**. - Does not typically lead to such high levels of **AFP**, making it less likely with the provided lab results. *Hepatic adenoma* - More commonly associated with **oral contraceptive use** or anabolic steroid use, not primarily alcohol dependence. - AFP levels are usually normal or only mildly elevated in hepatic adenoma, making this option less viable with an **AFP level of 600 ng/mL**.

Q: A patient comes with abdominal pain, jaundice, and portal hypertension. Anastomosis between which of the following veins is seen?

Esophageal veins and left gastric veins. ***Esophageal veins and left gastric veins*** - This anastomosis is crucial in **portal hypertension**, as increased pressure in the **portal venous system** (e.g., due to liver cirrhosis) causes blood to back up into the **systemic venous circulation** through these collateral vessels. - This shunting creates **esophageal varices**, which can rupture and lead to life-threatening **upper gastrointestinal bleeding**, commonly presenting with **jaundice** and **abdominal pain** in liver disease. *Left colic vein and middle colic veins* - Both the left colic and middle colic veins are tributaries of the **inferior mesenteric vein** and **superior mesenteric vein**, respectively, and are part of the **portal system**. - While they form an anastomosis (via the **marginal artery of Drummond**), this connection is within the portal system and does not typically serve as a portosystemic shunt to decompress portal hypertension in the way esophageal varices do. *Superior rectal and phrenic veins* - The **superior rectal vein** drains into the **inferior mesenteric vein** (part of the portal system), and the **phrenic veins** drain into the **inferior vena cava** (part of the systemic system). - There is no direct significant portosystemic anastomosis between these two veins that would be clinically relevant in portal hypertension. *Sigmoid and superior rectal veins* - Both the **sigmoid veins** and the **superior rectal vein** are part of the **inferior mesenteric venous system**, which drains into the **portal circulation**. - While there are anastomoses between these veins within the mesenteric circulation, they are not a direct portosystemic shunt used to relieve pressure in portal hypertension causing the described symptoms.

Q: Esophageal manometry was performed - it revealed panesophageal pressurization with distal contractile integrity as >450mm Hg pressure in the body. What will be the diagnosis?

Type 3 achalasia. The diagnosis is Type 3 achalasia. This condition is characterized by panesophageal pressurization, indicating diffuse, simultaneous contractions throughout the esophagus. The high distal contractile integrity (>450 mmHg pressure) further supports Type 3 achalasia, which involves significant spastic contractions. In contrast, while high-resolution manometry allows for the accurate classification of these motility abnormalities [1], other types present differently. Type 1 achalasia (classic achalasia) is marked by failed esophageal peristalsis and absent or minimal esophageal pressurization [1]. The primary characteristic is incomplete or absent lower esophageal sphincter (LES) relaxation, not hypercontractility [1]. Type 2 achalasia is identified by esophageal panesophageal pressurization (simultaneous contractions), but with normal to high contractile pressures, not the extremely high values seen here. Jackhammer esophagus involves hypercontractility (distal contractile integral >8000 mmHg·cm·s) and is characterized by rapid, repetitive, and fragmented contractions, rather than the diffuse panesophageal pressurization and spasticity typical of Type 3 achalasia [2].

Q: A patient with a history of chronic liver disease presents with abdominal distension, jaundice, and pruritis. Ascitic fluid analysis revealed a neutrophil count >650 per cubic mm. What is the most likely diagnosis?

Spontaneous bacterial peritonitis. ***Spontaneous bacterial peritonitis*** - The combination of **chronic liver disease**, **ascites**, and a significantly elevated ascitic fluid **neutrophil count (>250 cells/mm³ is diagnostic)**, in this case, >650 cells/mm³, is highly indicative of spontaneous bacterial peritonitis (SBP). - SBP is a common and serious complication in patients with **cirrhosis** and ascites, characterized by bacterial infection of ascitic fluid without an obvious source. *Malignant ascites* - While malignant ascites can occur in chronic liver disease (e.g., from hepatocellular carcinoma), the ascitic fluid analysis would typically show **cytology positive for malignant cells** and often a **low neutrophil count** unless secondarily infected. - The primary differentiator here is the very high neutrophil count suggesting an acute inflammatory/infectious process. *Tubercular ascites* - Tubercular ascites might present with ascites and abdominal distension, but the ascitic fluid analysis usually shows a **lymphocytic predominance** (high lymphocyte count) rather than a high neutrophil count. - Diagnosis typically involves **adenosine deaminase (ADA) levels**, acid-fast bacilli smear, or culture of ascitic fluid. *Intestinal obstruction* - Intestinal obstruction primarily causes **abdominal pain, distension, nausea, vomiting**, and constipation, with a clinical picture distinct from SBP. - While it can lead to ascites in rare cases (e.g., from bowel ischemia or perforation), the ascitic fluid would not characteristically show such a high neutrophil count unless there was associated perforation and peritonitis.

Q: Most common type of gallstone is?

Pure cholesterol stones. ***Mixed stones*** - Mixed gallstones, typically composed of **cholesterol** and **pigment**, are the most prevalent type, accounting for about 70-80% of cases [1]. - They are often associated with **biliary stasis** and **inflammation**, contributing to their formation. *Pigment stones* - Pigment stones are less common, usually representing about 10-20% of gallstones [1]. They are primarily formed from **bilirubin** and are associated with conditions causing **hemolysis**. - They may lead to **complications**, but their overall incidence is lower compared to mixed stones. *Calcium bilirubinate* - These stones are a type of **pigment stone**, formed in conditions like chronic hemolytic anemia, but they are relatively rare overall [1]. - They specifically result from **excess bilirubin**, unlike the mixed stones' composition which includes **cholesterol**. *Pure cholesterol stones* - Pure cholesterol stones occur in about 10-15% of cases, developing primarily due to **supersaturation of cholesterol** in bile. - They are less common than mixed stones and typically present as **large, yellowish stones** in the gallbladder.

Q: A 42-year-old patient with obstructive jaundice. Alp, Ggt, haptoglobin all increased. The most likely cause is:

Biliary obstruction. ***Alcohol*** - Chronic **alcohol consumption** leads to hepatic injury, causing cholestasis and increased levels of **Alkaline Phosphatase (ALP)** and **Gamma-glutamyl transferase (GGT)** [1, 2]. - Increased **haptoglobin** indicates hemolysis or hepatic dysfunction, commonly seen in alcohol-related liver disease [1]. *Lead* - Lead poisoning typically causes **anemia** and affects **erythropoiesis**, but does not generally increase ALP and GGT levels significantly. - The classic presentation involves **neurological** deficits and **peripheral neuropathy**, rather than obstructive jaundice. *Chronic rf* - Chronic renal failure primarily affects **uremia** and renal function tests, with minimal impact on liver function tests like ALP and GGT. - It is not directly associated with **increased haptoglobin**, which is usually elevated in liver disease. *None of the above* - This option implies that none of the listed causes could lead to the observed lab changes, which is incorrect as **alcohol** is a known cause [1, 2]. - Enhancing liver damage from substances other than alcohol is not applicable based on the information given.

Q: A young man met with a motorbike accident and had injuries to ileum and jejunum. Therefore the entire ileum and partial jejunum were resected. Which of the following would the patient suffer from

Vitamin B12 malabsorption due to ileal resection. **Vitamin B12 malabsorption due to ileal resection** - The **terminal ileum** is the primary site for the absorption of **vitamin B12** (cobalamin) complexed with intrinsic factor [3]. - Its resection would directly lead to the inability to absorb this vitamin, resulting in **B12 deficiency** and associated symptoms like macrocytic anemia [3]. *Atrophic gastritis unrelated to resection* - **Atrophic gastritis** is a chronic inflammatory condition of the stomach lining leading to loss of glandular tissue and often impaired production of **intrinsic factor**. - While it can cause B12 malabsorption, it is an independent condition and not a direct consequence of ileum and jejunum resection. *Constipation due to dietary changes* - Resection of the ileum and jejunum primarily impacts **nutrient absorption** and can lead to diarrhea due or **short bowel syndrome** [1], rather than constipation. - While diet changes can affect bowel habits, prolonged **severe gastrointestinal resection** is more likely to cause malabsorption-related diarrhea [1], [2]. *No significant symptoms* - The **ileum** and **jejunum** are crucial for the absorption of most nutrients, including vitamins, minerals, fats, and carbohydrates [4]. - Resection of these segments, especially a significant portion, would lead to **malabsorption syndromes** with various severe symptoms, potentially including weight loss, diarrhea, and nutritional deficiencies [1], [4].

Q: Which of the following statements is incorrect regarding King's Criteria for acute fulminant liver failure?

Jaundice 7 days** as a poor prognostic factor. - A short duration of jaundice ( 40 years* - This is a **correct** statement of King's Criteria, as **age less than 10 or greater than 40 years** are considered poor prognostic indicators. - These age groups are associated with a higher risk of adverse outcomes in acute liver failure. *INR >3.5* - This is a **correct** component of King's Criteria, indicating **severe coagulopathy** and poor liver synthetic function. - An **INR greater than 3.5** is a key predictor of non-survival without transplantation in non-acetaminophen-induced acute liver failure. *Serum bilirubin >17.5 mg/dl* - This is a **correct** criterion, as a **serum bilirubin level exceeding 17.5 mg/dl** is a significant marker for poor prognosis. - High bilirubin levels reflect severe hepatocellular dysfunction and impaired metabolic capacity of the liver.

Question 1

A patient with a history of alcohol dependence syndrome presents with sudden and unintentional weight loss. What is the most likely diagnosis?

Accepted Answer

Hepatocellular carcinoma

Answer

Hepatic adenoma

Answer

Cholangiocarcinoma

Answer

Alcoholic hepatitis

Question 2

A patient comes with abdominal pain, jaundice, and portal hypertension. Anastomosis    between which of the following veins is seen?

Accepted Answer

Esophageal veins and left gastric veins

Answer

Left colic vein and middle colic veins

Answer

Superior rectal and phrenic veins

Answer

Sigmoid and superior rectal veins

Question 3

Esophageal manometry was performed - it revealed panesophageal pressurization with distal contractile integrity as >450mm Hg pressure in the body. What will be the diagnosis?

Accepted Answer

Type 3 achalasia

Answer

Type 2 achalasia

Answer

Jackhammer esophagus

Answer

Type 1 achalasia (classic achalasia)

Question 4

A patient with a history of chronic liver disease presents with abdominal distension, jaundice,    and pruritis. Ascitic fluid analysis revealed a neutrophil count >650 per cubic mm. What is the    most likely diagnosis?

Accepted Answer

Spontaneous bacterial peritonitis

Answer

Malignant ascites

Answer

Tubercular ascites

Answer

Intestinal obstruction

Question 5

Most common type of gallstone is?

Accepted Answer

Pure cholesterol stones

Answer

Pigment stones

Answer

Calcium bilirubinate

Answer

Mixed stones

Question 6

The differentiating feature between IBS and organic GI disease is:

Accepted Answer

Presence of inflammation indicated by elevated stool calprotectin

Answer

Pain abdomen

Answer

Mucus in stools

Answer

Diarrhea

Question 7

A 42-year-old patient with obstructive jaundice. Alp, Ggt, haptoglobin all increased. The most likely cause is:

Accepted Answer

Biliary obstruction

Answer

Alcohol

Answer

Lead

Answer

None of the options

Question 8

A young man met with a motorbike accident and had injuries to ileum and jejunum. Therefore the entire ileum and partial jejunum were resected. Which of the following would the patient suffer from

Accepted Answer

Vitamin B12 malabsorption due to ileal resection

Answer

Atrophic gastritis unrelated to resection

Answer

Constipation due to dietary changes

Answer

No significant symptoms

Question 9

Which of the following statements about nutcracker esophagus is correct?

Accepted Answer

Nutcracker esophagus is characterized by extremely forceful peristaltic activity, leading to episodes of chest pain and dysphagia.

Answer

There are no effective medical treatments available for nutcracker esophagus.

Answer

Nutcracker esophagus is a type of esophageal malignancy.

Answer

Nutcracker esophagus does not cause any symptoms.

Question 10

Which of the following statements is incorrect regarding King's Criteria for acute fulminant liver failure?

Accepted Answer

Jaundice <7 days

Answer

Age <10 years or >40 years

Answer

INR >3.5

Answer

Serum bilirubin >17.5 mg/dl

Gastroenterology — MCQs

Gastroenterology — MCQs

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