Folliculitis decalvans. scarring hair loss that has been progressing for several years, with itching and occasional pain. in addition to purulent folliculitis, scaly tufts of hair with surrounding erythema appear.
Lichen planus follicularis capillitii. increasing spot-shaped hair loss with known Lichen planus. extensive redness with irregular, scarring alopecia (follicle structure is missing). itching.
Primary cutaneous follicular center lymphoma: Condition after treatment of an alopecia areata with DNCB about 20 years ago; for several months now, formation of smooth, painless plaques and nodules, which, according to a biopsy, affected the entire anterior half of the capillitium.
Psoriasis capitis. solitary, chronically stationary, sharply defined, silvery scaly plaque that extends beyond the hairline. infestation of predilection sites on the rest of the body
lymphoma, cutaneous T-cell lymphoma, large-cell, CD30-positive. detailed view: multiple, chronically dynamic, increasing, non-displaceable, confluent, hemispherical nodules covering a total area of 6 x 6 cm with hard, central, red part and deep, crater-shaped ulceration in a 64-year-old patient. the ulceration is covered with thick, yellowish coatings. the surrounding area of the ulceration is raised, livid-red and partly erosive weeping.
Keratosis actinica, keratotic type: In a 75-year-old male patient, adherent keratotic plaques have increasingly developed over the last few years, the mechanical detachment of which is painful; here flat ulcers, crusts, scars.
Squamous cell carcinoma in actinically damaged skin: Since more than 1 year, slowly growing, very firm, little pain-sensitive, ulcerated node, which (at the time of examination) was no longer movable on its base. Pronounced field carcinoma .
Chronic contact allergic dermatitis of the capillitium (see discreet, but clearly itchy erythema) as well as of the neck and nape of the neck, triggered by para-phenylenediamine .
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