Portal vein thrombosis (PVT) is the partial or complete occlusion of the portal venous system by thrombus. Presentation is determined by the tempo of obstruction (acute vs. chronic), the extent of mesenteric involvement, and the presence of underlying cirrhosis or malignancy. Symptoms range from incidental imaging findings to life-threatening intestinal ischemia. Abdominal painColicky or constant upper-abdominal discomfort is the commonest early feature, reported in up to 90 % of acute cases. Pain may be non-specific, but when disproportionate to physical signs it heralds mesenteric vein extension and impending bowel infarction . Fever and systemic inflammatory responseLow-grade pyrexia, rigors, and elevated... Learn more