title: [Squamous keratoacanthoma].
abstract: On the previously unaffected skin of the nose of a 48-year-old patient a very rapidly growing tumour had been unsuccessfully excised twice. The second recurrence had been misinterpreted as erysipelas because of its rapid spread, inflammatory reddening at the margin and sensitivity to pressure. Increasing hardness and yellow discolouration eventually led to the diagnosis "plate-shaped keratoacanthoma". Spontaneous regression of the tumour resulted in complete cure within six months.
mesh_terms: D001706:Biopsy; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009666:Nose / Q000473:pathology; D009668:Nose Diseases / Q000175:diagnosis* / Q000473:pathology; D012008:Recurrence
vernacular_title: Plattenförmiges Keratoakanthom.