Oppurtunistic Mycoses

Question 1

Delicate, septate hyphae with round or pyriform
conidia borne slightly or directly on hyphae;
resembling lollipops

Answer 1

Blastomyces dermatitidis

Question 2

Thick- walled, large yeast cells with single bud on
broad-base; broad isthmus at constriction

Answer 2

Blastomyces dermatitidis

Question 3

Small septate, branched hyphae with intercalary
and terminal chlamydoconidia; few pyriform
microconidia

Answer 3

Paracoccidioides brasiliensis

Question 4

Large, round to oval, thick-walled yeast cells with
multiple cuds which attach to mother cell by
narrow constrictions resembles a ship wheel or
pilot wheel or mariner’s wheel

Answer 4

Paracoccidioides brasiliensis

Question 5

Large, round, thick-walled spherules with
endospores observed in tissue and direct
examination.

Answer 5

Coccidioides immitis

Question 6

Septate hyphae with round to pyriform
microconidia on short branches or directly on
hyphal stalk; later lage, round, thick-walled
knobby, tuberculated macroconidia forms

Answer 6

Histoplasma capsulatum

Question 7

Small, budding, round to oval yeast cells;
intracellular to mononuclear cells

Answer 7

Histoplasma capsulatum

Question 8

Global; endemic in Ohio, Missouri, and Mississippi River valleys; central Africa (var. duboisin)

Answer 8

Histoplasmosis

Question 9

Semiarid regions of southwestern United States, Mexico, Central and South America

Answer 9

Coccidioidomycosis

Question 10

Mississippi, Ohio and St. Lawrence River valleys; southeastern United States

Answer 10

Blastomycosis

Question 11

Coarse, septate, branched hyphae that produce
thick-walled, barrel-shaped, rectangular
arthroconidia that alternate with empty disjunctor
cells.

Answer 11

Coccidioides immitis