Nearly all women who receive radiotherapy (RT) for breast cancer experience some degree of radiation dermatitis. However, evidence describing the appropriate management of radiation dermatitis is often lacking or contradictory. Here, we summarize the available literature regarding radiation dermatitis causes, the presentation and timing of symptoms, methods for dermatitis assessment and prevention, and review evidence-based management strategies.

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Eccrine poromas arise from the intraepidermal region of the eccrine sweat duct and most often occur as a benign solitary tumor. There are few reports of the occurrence of multiple lesions, defined as poromatosis, which may present in patients who have undergone radiotherapy and/or polychemotherapy. We report the case of a 43-year-old male with a history of mantle cell lymphoma who had undergone 6 cycles of polychemotherapy. He presented to the dermatology clinic for multiple painful lesions on his palms and soles. Several biopsies were performed consistent with eccrine poromas. The patient was successfully treated with a combination of excision, imiquimod cream, and cryosurgery. This case adds to the literature regarding the pathogenesis and treatment options of eccrine poromatosis. Herein, we report a case of eccrine poromatosis that developed after 6 cycles of chemotherapy.

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