Which clinical history findings are characteristic of porokeratosis palmaris et plantaris disseminata (PPPD)?

Updated: Oct 09, 2020
  • Author: Amarateedha Prak LeCourt, MD; Chief Editor: William D James, MD  more...
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Answer

Small, relatively uniform lesions first develop in adolescence or early adulthood on the palms and the soles. They may then spread in a more generalized distribution, occasionally along lines of Blaschko. The lesions are usually asymptomatic, but they may itch or be tender to palpation and plantar lesions may cause discomfort with walking. Disseminated areas of involvement may include the mucosal membranes, where they occur as multiple small, depressed, opalescent rings with hyperemic borders. [63] Males are affected twice as often as females.


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