Mucha-Habermann disease /mo̅o̅′kä hä′bermän/ [Viktor Mucha, Austrian dermatologist, 1877–1919; Rudolf Habermann, German dermatologist, 1884–1941] , an acute or subacute, sometimes relapsing, widespread macular, papular, or vesicular eruption that tends to crusting, necrosis, and hemorrhage, which heals and leaves pigmented depressed scars, followed by the development of a new crop of lesions. Occasionally, progression to a chronic form may occur. Also called acute lichenoid pityriasis, acute parapsoriasis, Habermann’s disease, parapsoriasis varioliformis acuta, pityriasis lichenoides et varioliformis acuta.
