melanoma, malignant, acrolentiginous. reddish, partly skin-coloured, slowly growing, coarse plaque, which has predominantly displaced the nail bed. there are also bizarre, black-brown hyperpigmentations. the nail plate is no longer existent except for a rest.
Erythronychia, localized longitudinal. idiopathic, solitary, painless, red longitudinal striation of the left thumbnail plate with a low-grade, V-shaped retraction and splinter hemorrhage in a 29-year-old female patient.
chronic paronychia: moderately painful paronychia existing for months. nail fold reddened and swollen. from time to time a purulent secretion empties under pressure. cuticles completely missing.
Erythronychia, localized longitudinal. idiopathic, solitary, painless, red longitudinal striation of the nail plate with low-grade, V-shaped retraction and splinter hemorrhaging. The clinical picture is diagnostically conclusive.
Paronychia candidamycetica. chronic paronychia with severe (candida-)onychodystrophy with accompanying Raynaud's syndrome. under pressure yellowish pus empties from the paronychium.
Glomus tumor. reflected light microscopy: Livid striped vascular drawing below the nail plate in the area of the lunula and the eponychium. in this area a punctual, strong pressure pain can be induced.
Glomus tumor. solitary, painful, reddish discoloration under the nail of the right ring finger in a 43-year-old female patient. parallel stabbing pain occurred, which occasionally radiated into the upper arm.
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).
Nail hematoma: Apparently caused by repetitive trauma (probably triggered by a trauma from frontal trauma, e.g. during a football match), transverse bleeding, the growing nail area is normally stained.
Acute paronychia: blistery, circumferential, painfully throbbing paronychia (bulla repens) that has been present for a few days, caused by poygenic cocci.
chronic paronychia: paronychia existing for months, with massive onychodystrophy. only slight painfulness. candida albicans was detected several times.
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