“…Biliary obstruction has been reported more often in the peripancreatic area than in the hepatic hilum. Of 42 previously reported patients, 27 had lesions in the peripancreatic area, as follows: 16 had lymphoma-related masses [3,4,6,14,[30][31][32], 8 had gastrointestinal lymphoma [4,12,16,29,[33][34][35], 2 had primary pancreatic lymphoma [4,36], and 1 had primary lymphoma of the ampulla of Vater [10]. The other 15 patients had lesions at the hilum: 12 had lymphoma-related masses [2,3,6,14,31] and 3 had primary porta hepatis lymphoma [9,27,28].…”