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An Asymptomatic Rash on the Low Back of an Older Woman


The patient says the incidental finding appeared in adulthood and has been stable for years. Can you identify this reticulated erythema?

A 67-year-old woman seen in clinic for unrelated concerns is incidentally noted to have a “rash” on her flank. She says it appeared in adulthood and has been stable for some years. On the right lower back, there is an asymptomatic reticulated erythema without scale or ulceration (Figure). The patient admits to regular heating pad use on her lower back for pain. The remainder of the skin examination is within normal limits.


Can you identify this condition?

A. Livedo reticularis
B. Livedoid vasculitis
C. Erythema ab igne
D. Poikiloderma atrophicans vasculare
E. Cutis marmorata
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