Primary cryptococcal cellulitis caused by Cryptococcus neoformans var. gattii in an immunocompetent host
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Primary cutaneous cryptococcal infection is uncommon. The cutaneous manifestations are most often the result of dissemination from the central nervous system or lung, usually in an immunocompromised host; cellulitis is regarded as the rarest cutaneous form. Primary cutaneous cryptococcosis has occasionally been reported in the immunocompetent, the causative organism being Cryptococcus neoformans var. neoformans. We present a case of cellulitis of the right arm in a 75-year-old man caused by Cryptococcus neoformans var. gattii, a fungus which is endemic in Australia and an important cause of infection in the immunocompetent. This is the first case described of a primary cutaneous infection due to Cryptococcus neoformans var. gattii. The interesting ecology of this organism is discussed.
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