Syn .: Black heel, pseudochromidrosis plantaris, hyperkeratosis. Def .: Post-traumatic bleeding into the stratum corneum of the heel.
Epid .: Most often among professional dancers, sportsmen: basketball players, volleyball players, especially at the beginning of the season.
Etiol .: Rapid pressure around the skin with an excessively developed stratum corneum.
Clinical: Dark brown or black spots, linear or dotted. Changes are painless.
Hist .: Presence of a reddish brown pigment in the stratum corneum.
DR: Pigmented nevus, melanoma.
Source: A. Kaszuba, Z. Adamski: “Lexicon of dermatology”; XNUMXst edition, Czelej Publishing House