Non-Hodgkin lymphoma as a cause of obstructive jaundice with simultaneous extrahepatic portal vein obstruction: A case report

Figure 1 Preoperative enhanced computed tomography. A low density mass (arrow), 10 cm in diameter, can be seen in the retroperitoneal space behind the pancreas head.

Figure 2 A photograph of the resected specimen. Endoluminal invasion of both the bile duct (white arrow) and the portal vein (black arrow) can be observed.

Figure 3 Photomicrographs of the tumor. A: The tumor consists of diffuse sheets of large malignant lymphoid cells (HE, × 20); B: Immunostaining of the tumor. The tumor cells are positive for CD20 ( immunostaining, × 20).