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tinea nodosa(1) Trichomycosis pubis; trichomycosis axillaris.
(2) Piedra, see there.
Sheathlike nodular masses in the hair of the beard and mustache from growth of either Piedraia hortae, which causes black piedra, or Trichosporon beigelii, which causes white piedra. The masses surround the hairs, which become brittle; hairs may be penetrated by fungus and thus split.Synonym: piedra
See also: tinea
Beigel,Hermann, German physician, 1830-1879.
Beigel disease - fungal disease which affects hair shafts. Synonym(s): tinea nodosa