Follicular dendritic cell tumor: an aggressive head and neck tumor.

Objective: To characterize the clinicopathologic features of head and neck follicular dendritic cell (FDC) tumor and report the experience of this entity at our institution.

Study Design: Two case presentations are compared with a retrospective analysis of all published head and neck cases.

Setting: A tertiary academic medical center.

Splenic marginal zone lymphoma: a case report and review of the literature.

Splenic marginal zone lymphoma is a recently described primary splenic lymphoproliferative disorder that mainly affects older individuals. We report the case of a 22-year-old woman with morphologic and immunophenotypic findings consistent with splenic marginal zone lymphoma. This woman is one of the youngest patients ever described with this disease.