Proximal subungual Candida onychomycosis. An unusual manifestation of chronic mucocutaneous candidosis.

Instead of presenting the classical appearance of granulomatous dystrophic nails due to Candida, a patient with chronic mucocutaneous candidosis showed, at each recurrence, transverse cloudy leuconychia which appeared beneath the normal cuticle of several fingernails. This pattern of infection was that of proximal subungual onychomycosis. This has been demonstrated histologically and the observation widens the range of organisms known to cause this type of fungal infection.