Acne comedonica Bilder

Acne comedonica: massive formation of comedones in papulopustular acne vulgaris.

Acne comedonica. general view: Recurrent multiple, disseminated standing retention cysts of 0.3-1.2 cm size on the back of a 38-year-old man, recurring since adolescence; multiple black comedones (blackheads) are also present.

Acne comedonica. general view: Recurrent multiple, disseminated standing retention cysts of 0.3-1.2 cm size on the back of a 38-year-old man, recurring since adolescence; multiple black comedones (blackheads) are also present.

Acne comedonica. Detail.

Acne comedonica. numerous comedones on the right shoulder blade of a 17-year-old patient. 3 years ago recurrent papules and pustules in the face as well as comedones in the area shown.

Acne comedonica, multiple comedones with a partially inflammatory reaction in the forehead area of a 12-year-old girl.

Acne comedonica. reflected-light microscopy without contact medium (perinasal region; 21-year-old man with comedone acne): Large-lumen sebaceous gland ostia with marginalized inner root sheath (whitish opaque, corresponding to Str. granulosum) and outer root sheath (yellowish brown, corresponding to Str. spinosum). Furthermore, microcomedones with diameters up to 0.4 mm at the upper edge as well as central vellus hairs are visible.