Candidosis, chronic mucocutaneous (CMC). edematous swelling of the thumb and index finger in a 3-year-old boy. dirty-brownish hyperkeratotic deposits with inflammation of the surrounding tissue. C. albicans could be cultivated massively from the horn material of the dystrophically thickened fingernails.
Dermatomyositis, malignoma-associated erythema in the area of the distal back of the hand and the sides of the fingers (= Gottron-signs) in a 67-year-old patient with bronchial carcinoma.
Hamartoma, eccrine, angiomatous. finding in a 12-year-old boy. Since the age of 1 year slowly growing, with distinct pressure (not spontaneously) painful, firm lump with partly smooth, partly verrucous surface. The lateral (scarred) depression was caused by a preliminary biopsy.
Dermatomyositis. 72 year old patient with dermatomyositis known for 1 year. striped red, scaly papules and plaques over the base of the fingers. deep red, painful and slightly scaly plaques on the end phalanges, also directly periungual. distinct hyperkeratotic nail folds.
tinea pedis "moccasin type": little inflammatory mycosis of the foot. arrows indicate the proximal extensions of the mycosis on the back of the foot. the encircled scaling is also induced by mycosis.
Fibrokeratome, acquired digital. benign, mainly on the fingers, more rarely on the toes, very slowly growing exophytic tumor of the adult with consecutive, displacing nail dystrophy. numerous Beau-Reils transverse furrows as a sign of intermittent growth disturbance.
Fibrokeratome, acquired, digital. 7 years old, slightly size progressive, pressure dolent, growing out under the nail, approx. 0.5 cm diameter, red knot with horny surface in a 62 year old female patient.
Chilblain lupus: in early stage with livid-red, surface smooth, painful plaques. clinical picture reminiscent of chilblain (frostbite lupus). no further systemic signs of lupus erythematosus. hyperkeratotic nail folds.
Chilblain lupus. early stage with livid-red, surface smooth, painful plaques. clinical picture reminiscent of chilblain (frostbite lupus). no other systemic signs of lupus erythematosus. hyperkeratotic nail folds.
Squamous cell carcinoma of the skin: carcinoma of the nail bed that has been present for several months (?), is mistaken for a fungal disease of the fingernail and is painful under pressure; onychodystrophy.
Squamous cell carcinoma of the skin: slowly growing, wart-like, painful, ulcerated and weeping nodules, which have been treated several times as a "subungual wart"; visible thickening of the nail root due to tumor infiltration.
dermatomyositis: reflected light microscopy. hyperkeratotic nail folds. pathologically enlarged and torqued capillaries. older bleeding into the nail fold.
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