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What is A man presents with history of hemetemesis of about 500ml of blood. On examination, spleen is palpable 5 cms below the left costal margin. The most likely diagnosis is - and explain in detail?
<p>Davidson&;s principles and practice of medicine 22nd edition. *The clinical features results from poal venous congestion and collateral vessels formation .Splenomegaly is the cardinal finding .spleen is rarely enlarged more than 5 cm below the left costal margin in adults . # collateral vessal formation occurs in oesophagus and stomach causing hemetemesis.</p>