Extranodal blastoid/pleomorphic variant of mantle cell lymphoma involving the testis and skin.

We report a case of extranodal mantle cell lymphoma of the testis in a 72-year-old Caucasian man who presented to his physician's office with rapidly enlarging left testicular mass and skin lesions which were subsequently biopsy-proven to be mantle cell lymphoma. We discuss the clinicopathological features and current management in relapsed and refractory settings of this rare presentation of mantle cell lymphoma.