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Cirrhosis represents the end-stage of chronic liver disease characterized by irreversible fibrosis and nodular regeneration that disrupts normal hepatic architecture. This progressive condition results from various etiologies including alcohol abuse, viral hepatitis, non-alcoholic fatty liver disease, and autoimmune disorders, leading to portal hypertension and hepatic dysfunction.
Chronic hepatic injury triggers repetitive cycles of inflammation, necrosis, and attempted regeneration, with activated hepatic stellate cells depositing excessive collagen and extracellular matrix. This fibrotic process distorts the normal lobular architecture, creating regenerative nodules surrounded by fibrous septa that impede blood flow and create portosystemic shunting. The resulting portal hypertension and decreased synthetic function lead to complications including ascites, varices, and hepatic encephalopathy.
Early cirrhosis may be asymptomatic, requiring clinicians to maintain high suspicion based on risk factors and subtle laboratory abnormalities like thrombocytopenia or elevated liver enzymes. As the disease progresses, patients develop signs of portal hypertension (splenomegaly, varices) and hepatic insufficiency (jaundice, coagulopathy, hypoalbuminemia), necessitating regular screening for complications. Management focuses on treating the underlying cause, preventing complications through endoscopic surveillance and prophylaxis, and evaluating for liver transplantation in decompensated disease.
Key imaging focus: Nodular liver surface, caudate hypertrophy, ascites, portal hypertension signs, varices