Which physical findings are characteristic of punctate porokeratosis?

Updated: Oct 09, 2020
  • Author: Amarateedha Prak LeCourt, MD; Chief Editor: William D James, MD  more...
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Dozens of discrete or grouped seedlike hyperkeratotic lesions with characteristic thin, raised ridgelike margins develop on the palms and the soles. Patients usually have other forms of porokeratosis as well, most commonly the linear or Mibelli types. Punctate porokeratosis may be clinically and histologically indistinguishable from punctate porokeratotic keratoderma, which is considered to be a cutaneous sign of an internal malignancy.

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