A woman in her 70s presented with an asymptomatic erythematous papule of unknown duration on the right breast. Four years previously, she had been treated for ductal carcinoma in situ of the right breast with a lumpectomy and radiation therapy. The physical examination revealed numerous telangiectasias involving the right breast and an erythematous vascular papule on the superior lateral right breast (Figure, A). A shave biopsy of the lesion was performed (Figure, B and C).
Baum S, Patel R, McLellan B. A Vascular Growth Following Radiation Therapy for Breast Carcinoma Treatment. JAMA Dermatol. 2013;149(11):1341-1342. doi:10.1001/jamadermatol.2013.4413