“…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]. In the present study, the level of biliary obstruction was distal CBD in five patients with lesions in the peripancreatic area and proximal CBD in two patients, one of whom had involvement of the peripancreatic and portal hilar lymph nodes; the other had benign biliary stricture.…”