A culture is taken from a nodule near a puncture wound on a gardener’s forearm. A mold at room temp showed septate hyphae with a daisy-flower conidia arrangement. At 37°C this culture produced cigar-shaped yeast. This organism is most likely (M60-10, 15, 17, 21; Level 3):
Read DetailsA 24 year old was seen at a clinic with a chief complaint of weight loss and fever. A complete blood count confirmed he was anemic. Multiple skin lesions were present on his arms with some developing draining pus. A gram stain of the pus revealed what appeared to be yeast-like cells. A culture of the pus grew a green mold, which produced a red soluble pigment on the agar. The most likely causative agent is (M60-17, 21; Level 3):
Read DetailsA culture of an infected hair that broke off close to the scalp produces a wine-red reverse on culture. Microscopically, rare macroconidia are seen with numerous microconidia that vary in size and shape, that are perpendicular to the hyphae The organism produces an intense red color on PDA. The organism which causes this infection is (M59-17, 21; Level 3)
Read DetailsA 32 yr old man is employed in foreign services and had recently been assigned to Africa. After a few months, he began complaining of abdominal pain, vomiting, diarrhea, and weight loss. He admitted to frequently eating locally grown watercress. An ova and parasite exam showed a large operculated and embryonated helminth eggs. What is the first intermediate host for this organism (M55-4, 10, 11; Level 3)?
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