Signet Ring Cell Lymphoma
Most cases with this morphology are variants of follicular center B-cell lymphomas but this pattern may rarely also be seen in T-cell lymphomas. They pursue an indolent clinical course. The patient in this case was an otherwise asymptomatic 58 y/o female who presented with an axillary lymphadenopathy. Ref: Ann Diagn Pathol 3:220-226, 1999.