Treatment of a subungual exostosis
A subungual exostosis is a bone spur that forms beneath the great toe nail. The spur is found equally in men and women and usually presents with an onset between the ages of 30 and 50 years of age. Diagnosis is made with a lateral x-ray of the foot that shows a pronounced bone spur on the dorsal, distal tip of the distal phalanx of the great toe.