Basal cell carcinoma, nodular, centrally ulcerated tumor with a clear wall at the edge of the temporal region. Ulcer not painful. Characteristic for the diagnosis "basal cell carcinoma ulcerated" is the raised, reflecting wall of the "ulcer" with the bizarre vascular structures already visible with the naked eye, which run over the wall (see edge region below right).
Lichen planus verrucosus: Large, coarse, brownish to brownish-red plaques with a verrucous surface that have been present for 6-7 years. There is itching, and several scratch artefacts have been found in the vicinity of the skin lesions.
Naevus flammeus (port wine stain): congenital erythema in the facial region (capillary vascular malformation), localized in V2 distribution, completely without symptoms. 4-month-old boy, developed according to age.
Lichen planus erosivus mucosae. painful gingivitis existing for more than one year in cases of currently unsuccessful therapies by the dentist. overall progressive course. chronically stationary, extensive, border-like, painful erythema and erosions as well as extensive whitish plaques are visible.
Benzyl nicotinate: toxic reaction after application of the cosmetic product "Lip Injection" on the back of the hand; redness and swelling of the back of the hand extending far beyond the application site.
Erythema exsudativum multiforme. chronic dynamic erosive gingivitis with reactive squamous epithelial hyperplasia and partially superficial mucous membrane erosions in a 66-year-old female patient with histologically confirmed lichen planus mucosae. severe pain during oral hygiene and close-up. all regions of the oral cavity are affected.
Acrodermatitis continua suppurativa. severe mutating, chronic pustular dermatitis with complete destruction of the nail organ of the left big toe. the anamnesis could be traced back over several years. episodic course with longer phases of low disease activity.
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