Angiographic features of peripancreatic malignant lymphoma.

Angiographic features are described in 5 patients with peripancreatic lymphomas who initially presented with clinical features of primary pancreatic disease. Each patient demonstrated a large hypovascular mass with considerable displacement of pancreatic and peripancreatic arteries and associated compression of adjacent veins. Smooth arterial encasement was present in 2 cases. Signs of mass out of proportion to signs of invasion mitigated against the diagnosis of carcinoma in each case. Other differential diagnostic considerations are pancreatic pseudocyst and cystadenoma.