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supernumerary nails of the fingers and toes: Polyonychia from congenital polysyndactyly: Specialty: Medical genetics: Symptoms: Having two or more finger/toenails on a single digit: Complications: Social insecurity: Usual onset: Birth (congenital), post-traumatic (acquired) Duration: Life-long (unless it's corrected) Treatment: Plastic surgery ...
While Beau's lines are actual ridges and indentations in the nail plate, Muehrcke lines are areas of hypopigmentation without palpable ridges; they affect the underlying nail bed, and not the nail itself. Beau's lines should also be distinguished from Mees' lines of the fingernails, which are areas of discoloration in the nail plate.
Topical administration of urea cream 40% under occlusion [16] or halcinonide cream 0.1% under occlusion for 5–6 days [17] has been used to treat onychomadesis in certain patients, although these therapies have not always proven successful. [6] It has been suggested to apply basic fibroblast growth factor externally to promote fresh nail plate ...
She got a 2nd opinion, advocated for herself. A thin black line from the cuticle kept growing. It was the sign of rare, aggressive subungual melanoma. She got a 2nd opinion, advocated for herself.
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In mammals, the growth rate of nails is related to the length of the terminal phalanges (outermost finger bones). Thus, in humans, the nail of the index finger grows faster than that of the little finger; and fingernails grow up to four times faster than toenails. [10] In humans, fingernails grow at an average rate of approx. 3.5 mm (0.14 in) a ...
The cause is poorly understood due to a lack of research, but genome-wide scans indicate that it is a heritable trait, and could be autosomal dominant. [4] However, the wide variance in the size and structure of the accessory nail indicates that the trait may not follow a Mendelian pattern of inheritance, and may instead be a complex trait affected by multiple genes with minor genetic effects.
Chevron nail, also known as a herringbone nail, is a rare transient fingernail ridge pattern seen in children, a ridge arising from the proximal nailfold and converging in a V-shaped pattern towards the midpoint distally. [1]: 786 The nail growth pattern has no known association with medical problems and tends to resolve by early adulthood. [2]