A bone marrow sample obtained from an immunocompromised pati…

A bone marrow sample obtained from an immunocompromised patient revealed small intracellular cells using a Wright’s stain preparation.  Growth on Sabouraud dextrose agar plates of a mold phase at 25°C and a yeast phase at 37°C designates the organism as dimorphic.  The mold phase produced thick, spherical tuberculated macroconidia.  What is the most likely identification?

A patient with thickened and discolored nails was diagnosed…

A patient with thickened and discolored nails was diagnosed with onychomycosis.  You received clippings of the nail in the laboratory for culture.  Microscopic analysis of the mold colony growth revealed many globose microconidia and thin walled, smooth, cigar shaped macroconidia that had four to five cells separated by parallel cross-walls.  You will identify this organism as