Opportunistic Fungal infections Flashcards
name a type of Candida species
albicans
where is candida normally found
Oral cavity
GI
Genital tracts
what are some disease risk factors for candida
AIDS, diabetes
candida is what type of fungi
dimorphic fungi
where can superficial candida disease occur
thrush
vaginal
dermiatitis
nails
what is thrush
white patches on oral mucosa
what is an example of candida thrush
diaper rash
what stain techniques can be used for candida albicans
KOH
PAS
what is a test that is very specific to Candida
germ tube test
what is the colony morphology for candida
white, smooth creamy, sometimes wrinkled
in laboratory identification what does candida produce
chlamydospore
what type of fungis is aspergillus
not dimorphic
what type of hyphae is aspergillus
septate
what type of arrangement does aspergillus make
conidial arrangement (45 degrees)
what type of branching does aspergillus make
dichotomous branching/ acute branching angle
45 degrees
what are two avenues for diagnosis for aspergillis
Direct and culture
what is the disease spectrum for aspergillosis
allergy
sinusitis
-PULMONARY ASPERGILLOSIS
-DISEMINATED ASPERGILLOSIS
classification of zygomycetes
Mucormyosis : filament fungi
zygomycetes lack what
septa
zygomycetes infects what part of the body
soft tissue
Rhinocerebral mucormycosis occurs as a terminal event in patients with
acidosis
uncontrolled diabetes
where in the body does rhinocerebral mucorymycosis occur
nasal sinuses and invade surrounding tissue
what are some clinical symptoms for rhinocerebral mucorymycosis
facial pain,
change in mental status
headache
what is so special about cryptococcosis neofroms
only one with capsule
where is cryptococus neofroms found
pigeon droppings
how does cryptococus neofroms infect the body
phenol oxidase positive blocks epinephrine
cryptococcus neofroms can cause what
pneumonia and meningitis
what can be used for diagnosis for cryptococcus neoforms
India Ink serological test (detects antigen)
what does pneumocystis carni lack
ergosterol
what does pneumocystis have similar to fungi
DNA and ribotyping
who usually gets pneumocystis
aids patients
what does pneumocystis look like under microscope
round cup in gomori’s methenamine silver stain
