Several children at a summer camp have lesions on their feet…

Several children at a summer camp have lesions on their feet along with infected toenails.  The organism has an olive/brown surface with a yellow periphery and a pale yellow reverse. Microscopically, smooth 2-4 celled club-shaped macroconidia and no microconidia are observed. This organism is most likely:

A rapid growing (2-5 days) culture of fluffy blue-green colo…

A rapid growing (2-5 days) culture of fluffy blue-green colonies from a respiratory specimen obtained from an immunocompromised ICU patient showed septate hyaline hyphae with many conidiophores. The tips of the conidiophores expand into large dome-shaped vesicles with bottle-shaped phialides covering the upper half or two-thirds of its surface. Long chains of conidia are present at the ends of the phialides. At the base of the conidiophore, a “foot cell” is seen attaching the conidiophore to the septate hyphae. The most likely organism is?

A rapidly growing, sparsely septate mold produced colonies w…

A rapidly growing, sparsely septate mold produced colonies with a grey surface resembling cotton candy that covered the entire plate. Microscopic examination revealed sporangiophores arising between, not opposite, the rhizoids and producing pear-shaped sporangia. What is the most likely identification?