History: A 51 year-old white woman presented to the Dermatology outpatient clinic for a skin examination, and was noted to have a red papule on her left breast. The lesion had been present for one year and was asymptomatic. The patient had a past medical history notable for papillary carcinoma of the same breast two years prior, which was treated with breast conservation surgery and radiation.
Physical examination: the lesion appeared as a firm and non-tender erythematous papule, 4mm in size(Fig.1). There was no clinical evidence of ulceration. A punch excision of the lesion was performed in clinic.
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