Leuconychia | definition of leuconychia by Medical dictionary
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The occurrence of white spots, streaks, or patches underthe nails, due to the presence of air bubbles between the nail and its bed.
[leuko- + G. onyx (onych-), nail]
leuconychia White discoloration of, or white patches in, the fingernails.
leukonychia; leuconychia white lines (striae), flecks (punctata) or involving entire superficial nail plate (totalis) due to trauma-related altered nail plate refraction (e.g. short shoes; sporting activities) or eponychial disturbance (e.g. excess manicuring); diffuse whitening of all nail plates and Muerke's lines are associated with hepatic cirrhosis; transverse white bands affecting all nails may reflect systemic retinoid therapy or course of chemotherapy