Primary cutaneous follicle center lymphoma (pcFCL) is an indolent type of primary cutaneous B-cell lymphoma (pcBCL) rarely disseminating to other organs. PcBCL with spindle-cell morphology has been described as a rare variant of pcFCL but the prognosis data of this variant is sparse. We report a rare case of spindle-cell pcFCL with CD20+, CD79a+, CD3+, Bcl-6+, Mum-1- and CD10-tumor cells that infiltrated the hepatic hilum, mimicking a Klatskin tumor. On the basis of the sparse published data on spindle-cell morphology of pcBCL, this growth pattern should elicit awareness of an increased risk of systemic involvement in the otherwise indolent pcFCL.
- Klatskin mimicking tumor
- cutaneous B-cell lymphoma
- cutaneous spindle-cell lymphoma
- hilar cholangiocarcinoma
ASJC Scopus subject areas
- Pathology and Forensic Medicine