Source:Reports of Practical Oncology & Radiotherapy, Volume 23, Issue 1
Author(s): Erik Petersen, Laila Yazdani, Sharon R. Hymes
Radiation induced morphea (RIM) is an increasingly common complication of radiation treatment for malignancy as early detection has made more patients eligible for non-surgical treatment options. In many cases, the radiation oncologist is the first person to learn of the initial skin changes, often months before a dermatologist sees them. In this paper we present a breast cancer patient who developed a rare bullous variant of RIM, which delayed her diagnosis and subsequent treatment. It is imperative to diagnose RIM early as it carries significant morbidity and permanent deformity if left untreated. The lesions typically present within 1 year of radiation therapy and extend beyond the radiated field. RIM is often mistaken for radiation dermatitis or cellulitis. Bullae, when present, are often hemorrhagic in appearance, which can serve as another clinical clue. It is important to refer these patients for a full gynecologic exam as there can be concurrent anogenital lichen sclerosus et atrophicus which is both debilitating and carries a long term risk for squamous cell carcinoma. Treatment with systemic agents is often necessary, and can be managed by a dermatologist. The most proven regimen in the literature appears to be methotrexate, with our without concurrent narrow band UVB phototherapy.
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