A 35-year old female complained about ongoing unspecific upper abdominal pain. The problem began, after the patient gave birth to a child 4 years ago following an uncomplicated pregnancy. There was no abdominal trauma reported in the patient=B4s history. Abdominal ultrasound revealed a cystic process in the head of the pancreas. A CT scan showed a process near the hepatic artery with compression of the pancreas and duodenum, an aneurysm was suspected. No other abnormality was found. An arterial aneurysm was ruled out by angiography, but a venous aneurysm was found originating from the splenic-portal vein confluence.
Which are applicable other diagnoses?
What can and should be done from a surgical point of view?