Unspecified solitary peripheral T-cell lymphoma of the breast in a teenaged girl.

摘要

T-cell lymphoma can be divided into two subgroups based on the maturity of the cells from which it arises: prethymic-thymic T-cell lymphoma, and peripheral T-cell lymphoma (PTCL), which is derived from mature post-thymic lymphocytes. Most childhood T-cell lym-phomas arise from prethymic-thymic lymphocytes. Peripheral T-cell lymphoma is rare during childhood and is an aggressive disease (1,2). Sometimes extranodal involvement can be the primary sign of the disease. We describe a teenaged girl with a rapidly growing, solitary, erythematous, ulcerated, nodular lesion on the right cutaneous surface of the breast diagnosed as PTCL. Our patient was interesting because at the time of initial diagnosis, she had only skin involvement, without any other extranodal involvement by PTCL.