SINCE 1828
pityriasis rubra pilaris
noun
pityriasis ru·bra pi·lar·is
| \-ˈrü-brə-pi-ˈlar-əs
\
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Medical Definition of pityriasis rubra pilaris
: a chronic dermatitis characterized by the formation of papular horny plugs in the hair follicles and pinkish macules which tend to spread and become scaly plaques
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