Ulcus cruris mixtum. solitary, chronically dynamic, 2-year-old ulcer, strongly progressive for 6 weeks, 30 x 20 cm in size, sharply defined, yellow-red ulcer reaching down to the muscle fascia, with a smeary coating. strong foetor (gram-negative colonization). evidence of CVI and PAVK (permanent pain, with improvement when the legs are deeply embedded).
Collagenosis, reactive perforating. detail enlargement: solitary, 0.3-1.3 cm large, red papules with a coarse central horn plug. the smaller papules correspond to an early stage of the disease.
Atopic dermatitis in infancy: clinical picture of the so-called milk crust; here a maximum variant with an area-wide infection of the capillitium is shown.
Scabies: severe, generalized, long-term untreated, only moderately itchy (pyodermized) scabies, with infestation of the entire integument. extensive, psoriasiform, pyodermized skin lesions. Remark: clear neglect of the patient
Sebaceous gland hyperplasia, senile. 74-year-old patient noticed these completely asymptomatic skin changes several years ago. In large-pored (seborrhoeic) skin of the forehead region there are waxy, slightly raised papules up to 0.4 cm in size with a slightly lobed edge structure (see papule top right). The diagnosis of sebaceous gland hyperplasia is fixed at the central porus formation (see papule in the center of the picture).
Keratosis palmoplantaris circumscripta seu areata: General view: Since birth existing, verrucous, hyperkeratotic plaques of the proximal phalanx and medial phalanx of digitus III of the left hand in a 10-year-old female patient.
Xanthogranuloma juveniles (sensu strictu). soft elastic, yellowish, completely asymptomatic, hardly elevated plaques. no Darier's sign! 10-month-old female infant with multiple xanthogranulomas. size growth in the first months of life.
Parapsoriasis en plaques, large: symptomless, well limited. disseminated stains and plaques. When the skin is wrinkled, a cigarette-paper-like pseudoatrophic architecture of the skin surface is visible (important diagnostic sign!).
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