Metastatic Liver Disease — MCQs
Transplantation of liver is contraindicated in:
Which of the following is the platinum-based chemotherapeutic agent used as first-line treatment for ovarian carcinoma?
Which of the following statements about hepatocellular carcinoma (HCC) is true? 1. On CECT, rapid wash-in and washout of contrast are seen in HCC. 2. HCC is the most common primary malignant tumor of the liver. 3. LI-RADS provides an algorithm for the diagnosis of HCC. 4. Fibrolamellar HCC has a better prognosis than classic HCC. 5. Alpha-fetoprotein is raised in 50-60% of HCC cases.
The following procedure is performed for the management of?
Tc-labeled RBCs are used for all except:
A woman shows symptoms of massive pulmonary thromboembolism. Based on the gross appearance of the liver autopsy, which of the following statements best characterizes the patient’s condition?
Which is the most common site for colorectal cancer metastasis?
What is the treatment of choice for a patient presenting with carcinoma of the rectum and obstruction in an emergency setting?
What does the term 'Stage M' indicate in colon cancer according to the TNM staging system?
Pringle's manoeuvre is done to stop bleeding at:
Metastatic Liver Disease Indian Medical PG Practice Questions and MCQs
Question 1: Transplantation of liver is contraindicated in:
- A. Metastasis to liver (Correct Answer)
- B. Renal failure
- C. Acute fulminant liver disease
- D. Viral hepatitis
Explanation: ***Metastasis to liver*** - The presence of **metastasis to the liver** from another primary cancer is a general contraindication for liver transplantation. - This is because the underlying malignancy is systemic, and transplantation would not cure the cancer, with high risk of **disease recurrence** in the transplanted organ or elsewhere. *Renal failure* - **Renal failure** alone is not an absolute contraindication for liver transplantation; patients with **hepatorenal syndrome** or chronic kidney disease can undergo combined liver-kidney transplantation. - The decision depends on the reversibility of renal failure and the overall clinical picture. *Acute fulminant liver disease* - **Acute fulminant liver disease** is a common and often urgent **indication** for liver transplantation, not a contraindication. - Transplantation is life-saving in these cases when medical management fails due to rapid deterioration and high mortality. *Viral hepatitis* - **Viral hepatitis** (e.g., hepatitis C, hepatitis B) is a common cause of end-stage liver disease and is a leading **indication** for liver transplantation. - With modern antiviral therapies, patients can often receive a transplant and manage the viral recurrence post-transplant.
Question 2: Which of the following is the platinum-based chemotherapeutic agent used as first-line treatment for ovarian carcinoma?
- A. Cyclophosphamide
- B. Methotrexate
- C. Cisplatin (Correct Answer)
- D. Dacarbazine
Explanation: ***Cisplatin*** - **Cisplatin** is a platinum-based chemotherapy drug that forms **DNA cross-links**, inhibiting DNA synthesis and leading to the death of rapidly dividing cells, making it highly effective against **ovarian carcinoma**. - It is a cornerstone of chemotherapy regimens for ovarian cancer, often used in combination with other agents such as paclitaxel. *Methotrexate* - **Methotrexate** is an **antimetabolite** that inhibits dihydrofolate reductase, thereby interfering with DNA synthesis. - While it is used in various cancers like leukemia, lymphoma, and some solid tumors (e.g., breast cancer, gestational trophoblastic disease), it is **not a primary recommended drug for ovarian carcinoma**. *Cyclophosphamide* - **Cyclophosphamide** is an **alkylating agent** that causes DNA damage, leading to cell death. - It is used in many cancers, including lymphoma, breast cancer, and some leukemias, but it is **not a first-line or primary agent for ovarian carcinoma** in contemporary treatment guidelines. *Dacarbazine* - **Dacarbazine** is an **alkylating agent** primarily used in the treatment of **malignant melanoma** and Hodgkin lymphoma. - It is **not indicated for the treatment of ovarian carcinoma**.
Question 3: Which of the following statements about hepatocellular carcinoma (HCC) is true? 1. On CECT, rapid wash-in and washout of contrast are seen in HCC. 2. HCC is the most common primary malignant tumor of the liver. 3. LI-RADS provides an algorithm for the diagnosis of HCC. 4. Fibrolamellar HCC has a better prognosis than classic HCC. 5. Alpha-fetoprotein is raised in 50-60% of HCC cases.
- A. 1. True, 2. False, 3. True, 4. True, 5. True
- B. 1. True, 2. True, 3. True, 4. True, 5. True (Correct Answer)
- C. 1. True, 2. True, 3. False, 4. True, 5. True
- D. 1. True, 2. True, 3. True, 4. False, 5. True
Explanation: ***All statements are TRUE (Option: 1. True, 2. True, 3. True, 4. True, 5. True)*** - This is the **correct answer** because all five statements about hepatocellular carcinoma (HCC) are medically accurate. - **Statement 1 (Contrast enhancement)**: HCC characteristically shows **arterial phase hyperenhancement** (rapid wash-in) followed by **washout** in portal venous or delayed phases on CECT, which is a key diagnostic feature. - **Statement 2 (Most common primary liver cancer)**: HCC accounts for approximately **75-85% of primary liver malignancies**, making it the most common primary hepatic malignancy worldwide. - **Statement 3 (LI-RADS system)**: The **Liver Imaging Reporting and Data System (LI-RADS)** provides a standardized algorithm for diagnosing and categorizing liver lesions, particularly HCC in at-risk patients. - **Statement 4 (Fibrolamellar variant)**: **Fibrolamellar HCC** is a rare variant (5% of HCC cases) that typically occurs in younger patients without cirrhosis and has a **better prognosis** than conventional HCC, with 5-year survival rates of 30-50% vs 10-20%. - **Statement 5 (Alpha-fetoprotein)**: **AFP is elevated** (>20 ng/mL) in approximately **50-70% of HCC cases**, though it has limited sensitivity for early detection and can be normal in small tumors. *Option stating Statement 2 is FALSE* - This is incorrect because HCC **is definitively the most common** primary malignant liver tumor, comprising the vast majority of primary liver cancers globally. *Option stating Statement 3 is FALSE* - This is incorrect because **LI-RADS is a well-established** imaging algorithm specifically developed for HCC diagnosis and risk stratification in at-risk populations. *Option stating Statement 4 is FALSE* - This is incorrect because fibrolamellar HCC **does have a better prognosis** than classic HCC, with improved resectability and survival outcomes, particularly in younger, non-cirrhotic patients.
Question 4: The following procedure is performed for the management of?
- A. Gallbladder carcinoma
- B. Distal cholangiocarcinoma (Correct Answer)
- C. Chronic calcific pancreatitis
- D. Advanced gastric carcinoma
Explanation: ***Distal cholangiocarcinoma*** - The image shows a **Pylorus-preserving Whipple procedure (PPPD)**, which involves resection of the pancreatic head, duodenum, gallbladder, and part of the common bile duct, followed by reconstruction. - This procedure is primarily performed for malignancies of the **pancreatic head**, **distal bile duct (cholangiocarcinoma)**, and **ampulla of Vater**, as they often cause obstructive jaundice and are resectable. *Gallbladder carcinoma* - While gallbladder carcinoma can involve the bile ducts, this specific reconstruction (PPPD) is more commonly associated with tumors of the pancreatic head or distal bile duct rather than the gallbladder itself, which might be managed with a **cholecystectomy** and possibly **liver resection**. - The type of resection and reconstruction varies significantly based on the extent and location of gallbladder cancer. *Chronic calcific pancreatitis* - Surgical management for chronic pancreatitis, especially with calcifications, typically involves drainage procedures (e.g., **Puestow procedure** due to dilated pancreatic duct or **Frey procedure**) or resection of the pancreatic head (e.g., **Beger procedure**). - While some resections of the pancreatic head are performed for chronic pancreatitis, the depicted procedure is specifically designed for malignancies of the pancreatic head region, not primarily for the sequelae of chronic calcific pancreatitis unless associated with a mass suspicious for malignancy. *Advanced gastric carcinoma* - Advanced gastric carcinoma is typically managed by **gastrectomy** (partial or total) with lymphadenectomy, not a Whipple procedure. - The image clearly shows an **intact pylorus** and the stomach mostly preserved, which is inconsistent with advanced gastric carcinoma requiring major gastric resection.
Question 5: Tc-labeled RBCs are used for all except:
- A. Liver adenoma (Correct Answer)
- B. LV function
- C. GI bleeding
- D. Liver hemangioma
Explanation: ***Liver adenoma*** - Tc-labeled RBCs are primarily used to highlight a specific type of tissue or process. **Liver adenomas** do not typically show an affinity for **Tc-labeled RBCs**, as they are benign epithelial tumors with a different vascular composition. - While adenomas can be vascular, they do not inherently contain the **vascular pooling** or blood volume characteristics that would be specifically targeted by **Tc-labeled RBCs** for diagnostic imaging. *LV function* - **Tc-labeled RBCs** (or Tc-99m-pertechnetate) are commonly used in **gated blood pool imaging** (MUGA scan) to assess **left ventricular (LV) function**, including **ejection fraction** and wall motion abnormalities. - This technique directly visualizes the blood pool within the cardiac chambers, making it suitable for assessing functional parameters of the heart. *GI bleeding* - **Tc-labeled RBCs** are a standard imaging agent for detecting and localizing **active gastrointestinal (GI) bleeding**, especially when the bleeding rate is intermittent or slow. - The labeled RBCs extravasate at the site of hemorrhage, creating a 'hot spot' that can be identified over time. *Liver hemangioma* - **Tc-labeled RBCs** are highly effective in diagnosing **liver hemangiomas**, which are benign vascular tumors composed of large, dilated blood vessels. - These lesions show characteristic uptake and retention of **labeled RBCs** due to their slow blood flow and large intravascular space, appearing as early peripheral enhancement with subsequent centripetal filling.
Question 6: A woman shows symptoms of massive pulmonary thromboembolism. Based on the gross appearance of the liver autopsy, which of the following statements best characterizes the patient’s condition?
- A. Primary liver angiosarcoma
- B. Locally invaded hepatocellular carcinoma
- C. Colonic adenocarcinoma with liver metastasis
- D. Chronic passive congestion with centrilobular necrosis (Correct Answer)
Explanation: ***Colonic adenocarcinoma with metastasis*** - The presence of **massive pulmonary thromboembolism** often indicates **underlying malignancy** [2], particularly with **colonic adenocarcinoma** known to metastasize to the liver [1]. - This condition may present with **liver lesions** at autopsy, consistent with metastatic disease [1], supporting this diagnosis. *Metastasis from PE* - Pulmonary embolism (PE) itself does not typically give rise to **metastatic disease**; instead, it commonly arises from **deep vein thrombosis** (DVT) [2]. - This onfuses the cause of PE with its potential effects, lacking the **specificity** of a primary cancer origin. *Locally invaded hepatocellular carcinoma* - This option indicates a primary liver cancer impacting the liver directly, which would not cause **massive pulmonary thromboembolism** as its primary feature. - While hepatocellular carcinoma can cause some vascular complications, it does not correlate with **colonic adenocarcinoma** or metastatic patterns indicative of PE. *Angiosarcoma* - Though angiosarcoma is a **primary liver tumor**, it is rare and does not typically present with **massive pulmonary embolism** as a hallmark manifestation. - This type of cancer generally has a different clinical picture and distinct risk factors compared to **colonic adenocarcinoma**, making it an **unlikely option** in this context. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Neoplasia, p. 282. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lung, p. 705.
Question 7: Which is the most common site for colorectal cancer metastasis?
- A. Liver (Correct Answer)
- B. Brain
- C. Peritoneum
- D. Lungs
Explanation: ***Liver*** - The liver is the **most common site** for colorectal cancer metastasis due to its direct vascular connection via the **portal venous system**. - Blood from the colon and rectum drains into the **portal vein**, which then carries cancer cells directly to the liver. *Brain* - While brain metastases can occur, they are **relatively rare** and typically late manifestations in the course of colorectal cancer. - The brain is **not the primary organ** for initial metastatic spread from colorectal cancer. *Peritoneum* - **Peritoneal carcinomatosis** is a significant mode of spread, especially in advanced colorectal cancer, but it is **less common** than liver metastasis. - This type of spread involves the **lining of the abdominal cavity**, often leading to ascites and bowel obstruction. *Lungs* - **Pulmonary metastasis** is the **second most common** site for colorectal cancer after the liver. - Cancer cells reaching the lungs usually do so via the **systemic circulation** after passing through or bypassing the liver.
Question 8: What is the treatment of choice for a patient presenting with carcinoma of the rectum and obstruction in an emergency setting?
- A. Total colectomy
- B. Hartmann's procedure (Correct Answer)
- C. Defunctioning colostomy
- D. Left hemi-colectomy
Explanation: ***Hartmann's procedure*** - In an emergency setting with **obstructing carcinoma of the rectum**, Hartmann's procedure is the **treatment of choice**. - This procedure involves **resection of the tumor** with formation of an **end colostomy** and closure of the distal rectal stump. - It achieves **dual objectives**: relieves the obstruction AND removes the primary tumor, allowing proper oncological staging and planning of adjuvant therapy. - While more extensive than simple diversion, it is the **standard emergency operation** for obstructing left-sided and rectal cancers in patients who can tolerate resection. - The colostomy can be reversed later after adjuvant treatment (if needed), though many remain permanent. *Defunctioning colostomy* - A proximal diverting colostomy only diverts the fecal stream without addressing the primary tumor. - This is a **temporizing measure**, not definitive treatment, and leaves the malignancy in situ. - It may be considered in **highly unstable patients** or for purely **palliative** intent when resection is not feasible. - Requires a second major operation for definitive tumor resection, increasing overall morbidity. *Total colectomy* - This involves removing the entire colon and is performed for conditions like **familial adenomatous polyposis** or **synchronous colon cancers**. - Not indicated for isolated rectal cancer with obstruction. - Would be excessively extensive and carry unnecessary morbidity in this setting. *Left hemi-colectomy* - This procedure removes the left colon (descending and sigmoid) but typically does not include the rectum. - Not appropriate for **rectal cancer**, as it would not address the primary pathology. - Used for tumors of the descending or sigmoid colon, not rectum.
Question 9: What does the term 'Stage M' indicate in colon cancer according to the TNM staging system?
- A. Local extension to serosa and lymph nodes.
- B. Local extension to serosa only.
- C. Local extension to mucosa.
- D. Distant metastasis to the liver. (Correct Answer)
Explanation: ***Local extension to serosa and lymph nodes.*** - Stage M in colon cancer indicates **involvement beyond the primary tumor**, typically affecting the **serosa** and nearby **lymph nodes**. - This stage represents **regional spread** rather than distant metastases, making it a critical point in cancer staging [1]. *Local extension to mucosa.* - This refers to early disease confined to the **innermost layer** of the colon and does not denote advanced disease like Stage M. - It reflects the **initial stages** of colon cancer, not involving lymphatic or serosal spread. *Local extension to serosa.* - While it indicates some **local progression**, it does not encompass the involvement of **lymph nodes**, which is essential for Stage M. - It misses a critical component of the classification, as it is not just about serosal involvement alone. *Metastasis to the liver.* - This describes **distant metastatic spread**, which is categorized beyond local extension and is indicative of a more advanced stage than M. - Stage M specifically refers to local disease rather than **distant metastasis**, such as to the liver. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. (Basic Pathology) introduces the student to key general principles of pathology, both as a medical science and as a clinical activity with a vital role in patient care. Part 2 (Disease Mechanisms) provides fundamental knowledge about the cellular and molecular processes involved in diseases, providing the rationale for their treatment. Part 3 (Systematic Pathology) deals in detail with specific diseases, with emphasis on the clinically important aspects., pp. 236-237.
Question 10: Pringle's manoeuvre is done to stop bleeding at:
- A. Hepatoduodenal ligament (Correct Answer)
- B. Splenic artery
- C. Renal artery
- D. Left gastric artery
Explanation: ***Hepatoduodenal ligament*** - **Pringle's manoeuvre** involves clamping the **hepatoduodenal ligament** to temporarily occlude the hepatic artery and portal vein, which are the main blood supply to the liver. - This maneuver is used during **liver surgery** to control or prevent bleeding from the liver parenchyma. *Splenic artery* - The **splenic artery** supplies the spleen and is not directly occluded by Pringle's manoeuvre. - Bleeding from the splenic artery would require direct clamping or **ligation** of that vessel, not compression of the hepatoduodenal ligament. *Renal artery* - The **renal artery** supplies the kidney and is located in the retroperitoneum, far from the liver and the hepatoduodenal ligament. - Pringle's manoeuvre has no effect on blood flow to the kidneys. *Left gastric artery* - The **left gastric artery** supplies the stomach and is a branch of the celiac trunk, which is proximal to the points of compression in Pringle's manoeuvre. - While it is part of the systemic circulation, Pringle's manoeuvre is specific to the blood supply entering the liver via the hepatoduodenal ligament, not individual gastric vessels.
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