pityriasis

(pit-ir-i’as-is) [Gr. πέτυρον bran]. name of various skin diseases characterized by branny scales. p. al’ba atroph’icans, a disease with branny desquamation, followed by atrophy of the skin. cap’it is. Same as alopecia furfur ace a. p. circina’ta, p. macula’ta et circina’ta, p. ro’sea, a non-contagious skin disease with reddish, scaly patches, moderate fever, and usually with a short and favorable course. p. circina’ta et margin a’ta, a variety of parasitic A glutinous mucus or origin. Gibert’s p., pityriasis rose a. p. gravida/rum, a skin discoloration peculiar to pregnancy. Hebra’s P., pityriasis rubra. p. lich- eno’des, maculopapular erythrodermia. p. lin’- gue, geographic tongue. See under foneuc. Ῥ. ni’gra, i pityriasis with skin _ pigmentation. Ῥ. nos’tras, tinea nodosa. p. pila’ris. Same as keratosis pilar is. p. Yu’bra, an intl am- matory disease of the entire skin, sometimes chronic and often fatal. The skin becomes deep red in color and is covered with white scales. p. ru’bra pila’ris, a form characterized by keratinization of the epidermis, which exfoliates in small shreds. p. sim’plex, the ordinary pityriasis: scborrhara sicca. p. tabescen’tium, general scborrhea with wasting of the body. p. versic’olor. Same as finca versicolor.