Striped black coloration of the big toe nail. The finding is unchanged since > 1 year. Here striped onychomycosis due to mold infestation of the nail. Diagnostic evidence is the normally colored proximal stripe above the nail dyschromia (see explanatory figure and reflected light microscopy).
hematoma. painful stain after blunt trauma a week ago. blurred, peripherally tapering stain with the different shades of hemoglobin breakdown. the center is pressure-dolent. a nodular hardening is palpable in depth.
Mastocytosis diffuse of the skin: Disseminated large-area mastocytosis of the skin (type Ia). In addition to the conspicuous yellow-brown spots and plaques, the apparently unaffected skin is slushy thickened, in places also with protruding follicular structures. The occurrence of larger blisters after banal trauma has been reported time and again. No systemic involvement detectable.
dermatomyositis. flat, red-livid spots on the face of a 55-year-old woman with periorbital and perinasal accentuation. tired facial expression. general fatigue, muscle weakness and weight loss with underlying tumor disease. redness of the back of the fingers, megacapillaries in the capillary microscopy of the nail fold capillaries.
Nevus from the back of an 84-year-old man who already had a melanoma 8 years ago. Noticed during the follow-up. The excision revealed a dysplastic nevus of the compund-type.
Chilblain lupus: reflected light microscopy. dilated, corkscrew-like vessels (arrows) on the dorsal side of the fignerendl song. s. clinical picture. encircles the anemic pressure point of the reflected light microscope
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