A Case Report of Primary Cutaneous CD30+ Anaplastic Large Cell Lymphoma Which Responded to Radiotherapy

Primary cutaneous CD30+ anaplastic large cell lymphoma is the second most common type of cutaneous T cell lymphoma after mycosis fungoides. It is most frequently seen in adults and the prognosis is generally excellent. Histologically, the tumor cells have a characteristic morphology and a characteristic immunohistochemistry, with adequate diagnosis requiring CD30 antigene expression by more than 75% of the cells. While radiotherapy or surgical excision is preferred for localized skin lesions, chemotherapy is used for its systemic form. Here, a case of primary cutaneous CD30+ anaplastic large cell lymphoma treated with radiotherapy, and did not recur within a six-month follow-up period, is presented.