An unusual case of cytotoxic peripheral T-cell lymphoma

Abstract

Cytotoxic cutaneous T-cell lymphomas (CTCLs) are a heterogeneous group of lymphoproliferative disorders characterized by localization of atypical T cells in the skin that often express CD56 and cytotoxic granules. CTCLs exhibit a wide range of clinical and histopathologic features but tend to be aggressive.1 Often diagnosis relies heavily on immunohistochemistry. We report a case of cytotoxic CTCL with a unique immunophenotype.