pachyonychia /pachy·onych·ia/ (pak″e-o-nik´e-ah) abnormal thickening of the nails.
pachyonychia congenita
pachyonychia conge´nita a rare, congenital, dominantly inherited disorder marked by great thickening of the nails, hyperkeratosis of palms and soles, and leukoplakia.
pachyonychia con·gen·i·ta (k n-j n  -t)n. A hereditary syndrome marked by abnormal thickness and elevation of the nail plates, palmar and plantar hyperkeratosis, and a whitish and glazed tongue due to papillary atrophy. Also called Jadassohn-Lewandowsky syndrome. |
pachyonychia congenita
Etymology: Gk, pachy + onyx, nail; L, congenitus, born with
a congenital deformity characterized by abnormal thickening and raising of the nails on the fingers and the toes and hyperkeratosis of the palms of the hands and the soles of the feet. The papillae of the tongue also atrophy, causing a whitish coating over the lingual surface.
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