Bilateral Pruritic Auricular Papules and Plaques
Am Fam Physician. 2016 Sep 15;94(6):486-489.
A 59-year-old woman presented with several years of persistent and worsening bilateral pruritic auricular lesions. The rash was limited to the ears, and the patient did not have a history of a similar rash on other areas of her body. She reported rubbing and scratching her ears often. A trial of ketoconazole shampoo and triamcinolone cream was ineffective.
Examination revealed cobblestoned, slightly keratotic, brown papules and plaques on the concave surfaces of both ears (Figure 1 and Figure 2). The physical examination was otherwise unremarkable. A punch biopsy of the plaque was performed.
Based on the patient's history and physical examination findings, which one of the following is the most likely diagnosis?
B. Colloid milium.
C. Flat warts.
D. Intertriginous granular parakeratosis.
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This series is coordinated by John E. Delzell Jr., MD, MSPH, Assistant Medical Editor.
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