Chrysosporium spp isolation from Iguana iguana dermatitis. First report in Argentina

Abstract

This article reports for the first time the isolation of a Chrysosporium species from a juvenile green iguana (Iguana iguana) in Argentina. Since the animal presented a lesion in the distal third of the tail and had been refractory to different treatments, caudal amputation was the elected approach. Sterile tissue samples were seeded in Sabouraud agar with glucose and inhibitors, 8% ovine blood agar and McConkey agar (AMc), and incubated at 37 ºC. Under these conditions, white opaque fungal colonies with light brown pigmentation on the underside developed. Microscopically, the genus Chrysosporium was identified by the observation of septate, straight, irregularly branched hyphae with smooth surface and globose conidia. Histological findings included loss of epithelial continuity with infiltration of granulocytes and the presence of the saprophytic organism. In the dermis, granulomatous lesion with scarce fibroblastic and angioblastic reactions were observed.