Acute mesenteric ischaemia due to superior mesenteric vein (SMV) thrombosis.

A 77-year-old male patient presented with a 5-day history of abdominal pain, coffee ground vomiting and blood-stained diarrhoea. CT scan of the abdomen and pelvis demonstrated a long segment thrombotic occlusion of the superior mesenteric vein (SMV) extending up to the proximal portion of the portal vein causing significant acute small bowel ischaemia. Patient's deteriorating clinical condition warranted surgical management.