Fig. 2From: Simultaneous dermatophytosis and keratomycosis caused by Trichophyton interdigitale infection: a case report and literature reviewa Direct microscopy showing hyaline septate hyphae. b Potato dextrose agar plates incubated at 28 °C showing medium growth rate and colonies with white powdery surfaces. The bottom of the colonies turned yellowish-brown, while the surface became granular over time. c Slide cultures with calcofluor white stain (× 40) reveal branched septate hyphae and masses of spherical-to-pyriform microconidiaBack to article page