This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A patient presents with esophageal varices and a liver span of 10cm. All of the following are likely causes, except: 
Select and explain. 
A. Haemochromatosis, B. Alcoholic liver disease, C. Veno-occlusive disease, D. Post necrotic cirrhosis
D: Post necrotic cirrhosis
Answer: D: Post necrotic cirrhosis 
Explanation: Answer is D (Post necrotic cirrhosis) Post necrotic cirrhosis is charachterized by a shrunken liver with reduced liver span. The normal liver span measures about 12- 15 cm and a lover span of 19cm suggests and chlorged liver. Presence of esophageal varices suggests poal hypeension due to advanced liver disease / cirrhosis or occlusion of poal vein. Venoocclusive disease, Budd chiari syndrome, Hematochromatosis and Alcohol liver disease may all present with an enlarged liver and poal hypeension (esophageal varices).