Pancreatic pseudocyst causing celiac artery trunk thrombosis.

Vascular complications of pancreatitis are more common in alcohol- rather than gallstone-induced pancreatitis. Such complications are an important cause of mortality and morbidity, although peripancreatic vessel obstruction is a rare consequence. Patients with peripancreatic arterial obstruction can present with sudden and unexplained clinical deterioration requiring prompt diagnosis and intervention. A 42-year-old woman with a proven pancreatic pseudocyst presented with acute abdominal pain. Initial investigations were non-diagnostic. A gastroscopy revealed patchy necrosis of the proximal stomach. Following sudden clinical deterioration, a contrast-enhanced CT scan was performed. The CT scan demonstrated a thickened gastric wall with intramural gas. The decision was taken to proceed to laparotomy, which revealed both gastric and splenic infarction. A total gastrectomy with Roux-en-Y reconstruction and splenectomy was performed. She made a successful recovery. Arterial thrombosis should be considered in any patient with chronic pancreatitis who presents with an acute clinical deterioration. Successful outcomes can be achieved with prompt diagnosis using contrast-enhanced CT scanning and early surgical intervention.