Lichen planus. findings increasing since several years. distinct longitudinal rippling of the nails. thinned, centrally raised nail plates with band-shaped onychodystrophy. beginning bds. pterygium.
Melanoma, malignant, acrolentiginous. 13 x 10 mm large, extensive, black pigmented tumor of the subungual space and distension of the nail bed of the left big toe in a 61-year-old female patient. Advanced stage with nail destruction.
melanoma, malignant, acrolentiginous. incident light microscopy. streaky, brown (melanotic) hyperpigmentation of the nail plate. complicating superimposition: fresh, red splatter-like bleeding after still recallable trauma).
Melanoma malignes subunguales: Nail with stripy and periungual brown markings (Hutchinson's sign) in acrolentiginous malignant melanoma under the nail plate and in the nail bed (see Levit's ABC Rule)
Melanonychia striata longitudinalis. solitary, chronically stationary, approx. 1.2 cm long, acral accentuated, linear, sharply defined, brown longitudinal stripe on the right thumb of a 6-year-old boy. No nail fold alteration so far.
Melanonychia striata longitudinalis. initial findings in 2006. Completely asymptomatic longitudinal pigmentation of the nail plate, which has existed for about 2 years and has increased continuously.
Onychodystrophia psoriatica. proximal strongly dented nail plate of the right thumb in a 26-year-old psoriatic with psoriasis vulgaris since 8 years. The distal thumb phalanx carries a hyperkeratotic red plaque, the nail fold is also hyperkeratotic changed.
Onychodystrophia psoriatica. moderate onychodystrophy of the index finger nail of a 30-year-old man. the nail matrix is distally crumbly and chipped off. isolated splinter hemorrhages are visible. almost centrally a small yellowish oil stain shimmers through. hyperkeratotic nail fold.
Onycholysis, drug-induced or light-induced. detail enlargement: reddish-brown discoloration of the middle finger of the right hand of a 12-year-old girl, existing for 14 days after doxycycline therapy. similar discoloration occurred on all hand and toenails. the nail matrix is lifted off.
Onycholysis, drug-induced or light-induced. Detail enlargement: For 3 weeks persistent reddish-brown discoloration and subungual hemorrhages of the left thumb in a 22-year-old woman treated with doxycycline because of Lyme disease in particular.
Onycholysis, drug-induced or light-induced. Incident light microscopy: Yellowish-brownish discoloration of the right big toe nail after tetracycline therapy and sunbathing in a 54-year-old man. The nail matrix appears partially disintegrated in a cloggy manner. Clinical signs: Detachment of almost all fingernails as well as yellow-brownish discoloration and subtle lifting of the nail bed.
Pachyonychia congenita: congenital nail dystrophy affecting all fingernails and toenails with palmareratoses; claw-shaped, thickened fingernails and toenails.
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