Opportunistic Mycoses Flashcards
(32 cards)
Disseminated candidiasis
Hepatosplenic candidiasis
Infectious particle of Candidiasis
Yeast cell and
pseudohyphae
Gram stain/KOH of Candidiasis would show
small budding yeast cell and Pseudohyphae
Culture at RT/37C would show
Pseudohyphae with clusters of blastoconidia
NOT thermally dimorphic but dimorphic
monomorphic yeast
Clamydospores and yeast cell and pseudohyphae are produced on what agar
corneal agar
Presumtive diagnosis for C. albicans
Germ Tube Test
Cutaneous treatment for Candidiasis
Nystatin, Ketoconazole, Fluconazole
Nystatin is for cutaneous only
Aspergillosis is acquired by?
Inhalation of conidia
Fungus ball that colonizes in a healed lung scar or abscess
Aspergilloma
Ingestion of food contaminated with or harboring a toxin-producing fungi
Mycotoxicosis
Common Aspergillus species because of thermotolerance
A. fumigates
KOH would show?
wide, septate dichotomously acute (45) branching hyphae
Appearance of this is diagnostic of aspergillosis and does not require culture
Conidial head
Culture of apergillosis would appear as?
Conidiophore
Swollen Vesicle
Phialide
Conidia
AKA Busse-Bucske’s disease/Torulosis
Cryptococcosis
Acquired through inhalation of Basidiospores
Cryptococcosis
inhalation of non-encapsulated basidiospore
Disseminated infection of Cryptococcosis
Meningitis
most frequently diagnosed form
2ndary is pulmonary
Neurotropism of Cryptococcosis is related to
Phenoloxidase activity
Environmental reservoir is pigeon dropping
C. neoformans
Serotype of C. neoforman related to A
C. grubii
(D = C. neoformans)
GANDam
C. grubii is also more frequent, more pathogenic and more common than C. neoformans
Clinical disease of C. neoformans
meningoencephalitis
Environmental reservoir of C. gatii
Eucalyptus tree
Clinical disease of C. gatii
pneumonia
KOH/India Ink for Cryptococcosis would show
yeast cell with wide CAPSULE
