Pseudo-pelade: irregularly limited, hairless area. on enlargement (see inlet) it becomes clear that the follicular structure is completely missing in the hairless area. it is thus in a "scarred" final state of a previously expired inflammation leading to scarring.
Alopecia, postmenopausal, frontal, fibrosing: General view: Pronounced fronto-temporal scarring alopecia band-shaped frontal and diffuse parietal in a 71-year-old female patient (FFA grade V - clown alopecia). Rarefication of the eyebrows.
Alopecia areata (Grade 2-3): extensive loss of hair in the capillitium. at higher magnification, the preserved (hairless) follicles can be seen. preserved hair rings partly mark the grown alopecia foci. note individual re-grown pigment-free hairs
Lupus erythematodes chronicus discoides: older, only slightly active "discoid" lupus foci that heal under atrophy of skin and subcutis (focal destruction of hair follicles) Note the reddish-livid hue of the alopecic foci.
Alopecia areata totalis: complete hair loss except for a few individual hairs; with greater enlargement, the preserved (hairless) follicles can be seen
Pseudo-pelade: irregularlylimited, hairless area. follicular structure in the hairless area is completely absent. it is thus in a "scarred" final state of a previously expired inflammation leading to scarring.
Lichen planus follicularis capillitii as partial manifestation of a Lichen planus with infestation of capiliitium and oral mucosa: increasing focal hair loss. circumscribed, follicularly accentuated redness with irregular, scarring alopecia (follicular structure is missing). inlet: streigi whitish plaques of the oral mucosa as sign of Lichen planus mucosae.
Alopecia marginalis: 45-year-old woman, who has been fixing the curly hair on the top of her head with 2 crossed hair clips for years. In the area of the hair clips now circumscribed hairless plaque with slight induration and coarsening of the skin surface. A histological examination was performed to exclude other causes.
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