Favus: multiple asymptomatic plaques in a 6-year-old boy, existing since 4 weeks, sharply defined, clearly increased in consistency, with yellow scaly crusts.
Sarcoidosis plaque form: large, symptom-free plaque on the capillitium that has existed for several years; scarred hairless state after healing under fumaric acid ester.
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.
trichorrhexis nodosa. calibre variations of the hairs. in the centre a thin hair with frayed shaft and broken axis. image taken in polarized light. in the inlet with arrow the fibrous hair breakage is marked
Tinea capitis superficialis:a slowly centrifugally growing, marginally dead centre that has been present for several months; pronounced marginal scaling; detection of Trichophyton mentagrophytes
Tinea capitis profunda: Inflammatory, moderately itchy, slightly painful, fluctuating nodule in the area of the capillitium in children with extensive loss of hair.
Tinea capitis profunda: Inflammatory, moderately itchy, slightly painful, fluctuating nodule in the area of the capillitium in children with extensive loss of hair.
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.
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