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Difficulty: HardGastroenterology and Hepatology

Match each patient's clinical presentation with the most likely corresponding liver biopsy finding.

  • A 45-year-old woman with severe pruritus, fatigue, xanthelasma, elevated alkaline phosphatase, and positive antimitochondrial antibodies.Florid granulomatous destruction of interlobular bile ducts
  • A 35-year-old man with a history of ulcerative colitis, fatigue, elevated alkaline phosphatase, and MRCP showing multifocal strictures and dilations of the biliary tree.Concentric 'onion-skin' periductal fibrosis leading to obliterative cholangiopathy
  • A 42-year-old man with dyspnea on exertion, panacinar emphysema at the lung bases, and mildly elevated liver transaminases.Accumulation of PAS-positive, diastase-resistant globules in periportal hepatocytes
  • A 30-year-old woman with fatigue, jaundice, elevated aminotransferases, elevated IgG levels, and positive anti-smooth muscle antibodies.Dense lymphoplasmacytic inflammatory infiltrate with prominent interface hepatitis
  • A 55-year-old obese man with type 2 diabetes mellitus, hyperlipidemia, and incidentally discovered hepatomegaly with mildly elevated aminotransferases.Macrovesicular steatosis with hepatocellular ballooning and Mallory-Denk bodies

Answer

Primary Biliary Cholangitis (PBC) matches with florid granulomatous duct destruction; Primary Sclerosing Cholangitis (PSC) matches with onion-skin periductal fibrosis; Alpha-1 antitrypsin deficiency matches with PAS-positive diastase-resistant globules; Autoimmune hepatitis matches with lymphoplasmacytic interface hepatitis; Nonalcoholic Steatohepatitis (NASH) matches with macrovesicular steatosis and ballooning.
Each clinical vignette provides classic epidemiological and laboratory clues for a specific liver pathology. Matching these correctly requires accurately diagnosing the condition based on the vignette, and then recalling the highly specific pathognomonic biopsy finding associated with that disease.

Step-by-Step Solution

1
Evaluate the first vignette (middle-aged woman, pruritus, AMA positive).
Diagnose Primary Biliary Cholangitis (PBC).
AMA positivity and cholestatic pattern in a middle-aged woman are classic for PBC, characterized by granulomatous destruction of bile ducts.
2
Evaluate the second vignette (young man, ulcerative colitis, MRCP strictures).
Diagnose Primary Sclerosing Cholangitis (PSC).
PSC is strongly associated with inflammatory bowel disease and presents with stricturing of biliary tree and 'onion-skin' fibrosis on biopsy.
3
Evaluate the third vignette (young man with panacinar emphysema and liver abnormalities).
Diagnose Alpha-1 antitrypsin deficiency.
The co-occurrence of early-onset lung and liver disease suggests alpha-1 antitrypsin deficiency, leading to PAS-positive globule accumulation in the liver.
4
Evaluate the fourth vignette (young woman, elevated transaminases, anti-smooth muscle antibodies).
Diagnose Autoimmune Hepatitis.
Autoimmune hepatitis presents with hypergammaglobulinemia and specific autoantibodies, showing lymphoplasmacytic interface hepatitis on histology.
5
Evaluate the fifth vignette (older obese man, metabolic syndrome, elevated transaminases).
Diagnose Nonalcoholic Steatohepatitis (NASH).
Metabolic syndrome risk factors without other causes of liver disease point to NASH, identified by steatosis, ballooning, and Mallory-Denk bodies.

Key Concept

Correlating clinical presentations of hepatobiliary diseases with their defining histopathological features.
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Topics

Gastroenterology and Hepatology

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