Exam 27: Medically Significant Fungi

A young boy develops itchy, dry scaly lesions on his leg with a raised, red, outer edge. A culture of the lesion reveals the following organism in a lactophenol cotton blue stain. This organism is most likely

A graduate student returning from a month-long fieldwork experience in South America develops a dark nodular lesion on his left hand. Microscopic examination of the nodule reveals dark, coinlike inclusions. The following organism grows in culture. This organism is most likely

A patient who wears long-term contact lenses comes to her physician after noting a small spot on her cornea. Collection of the lesion for culture produced a fast-growing mold with a slight pink color on the surface. Microscopic review showed the following organism. This organism is most likely

After returning from a vacation trip to the Amazon River delta in Brazil, a man notices a white dirtlike substance on his axilla hair that does not wash off in the shower. His health care provider samples the hairs and sends them to the laboratory for culture. Straw-colored yeastlike colonies show the following microscopic morphology. This is most consistent with an identification of

A patient with thickened and discolored nails was diagnosed with onychomycosis. A scraping of the nail was sent for culture. Microscopic analysis of the mold colony growth revealed the following morphology. The most likely identity of this organism is

What organism is found in the San Joaquin Valley region of California?