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Pityriasis
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Definition
: A name originally applied to a group of skin diseases characterized by the formation of fine, branny scales, but now used only with a modifier. (Dorland, 27th ed)
a papulosquamous skin dis
Examples
Pityriasis Lichenoides
;
Pityriasis Rosea
;
Pityriasis Rubra Pilaris
Other names
Pityriases