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JAMA Dermatology Clinicopathological Challenge
July 2013

Long-Standing Filiform, Blaschkoid Papules

Author Affiliations
  • 1University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
  • 2University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
JAMA Dermatol. 2013;149(7):869-870. doi:10.1001/jamadermatol.2013.87a

A 37-year-old woman presented to our pediatric dermatology clinic with a lifelong history of multiple hyperkeratotic and filiform papules over her right palm and digits, extending proximally along her right upper extremity. Over time, the papules had become more appreciable and confluent along areas of her palm. Other than experiencing occasional pruritus, the patient remained relatively asymptomatic. The area had been treated in the past with local cryotherapy and dermabrasion without improvement.

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