Pancreatic T/histiocyte-rich large B-cell lymphoma: A case report and review of literature

Figure 1 Abdominal computed tomography scan findings. A 4.2 cm × 4.1 cm hypodense mass within the head of the pancreas.

Figure 2 Histopathological examination. Large atypical lymphoid cells were scattered among small reactive lymphocytes and less often histiocytes (HE, × 20).

Figure 3 Immunohistochemistry studies. A: The dispersed CD20 positive large B cells (× 20); B: Numerous CD3 positive small T cells in the background (× 20); C: CD68 positive histiocytes in the background (× 20); D: Ki-67 expression of neoplastic cells (× 20).