A 46-year-old white woman presented with a 5-month history of an erythematous eruption on her bilateral breasts. The lesions were asymptomatic and had not notably changed over time. On physical examination, a reticulated, reddish brown 5 × 2-cm patch that was slightly atrophic with telangiectasias was noted on the right superior medial breast (Figure 1). A similar but smaller (2 cm) patch was seen on the left breast. There were no discrete breast masses or nipple lesions. The patient had no notable medical history, and her mammogram result was normal. The patient did reveal that she had bought a new cell phone and often talked on the phone while doing chores and carried the phone in her bra. A punch biopsy was performed (Figure 2).
Dela Rosa K, Satter EK. Erythematous Patches on the Chest —Quiz Case. Arch Dermatol. 2012;148(1):113–118. doi:10.1001/archderm.148.1.113-b
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