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10 Cards in this Set

  • Front
  • Back
histoplasma capsulatum
ascomycete
dimorphic
h and e stain, PAS stain, methenamine silver stain
macro/microconidia
mississippi
avian bat feces
can reside in M phage

enlargement of reticuloendothelial organs
with young elderly immunocompromised
skin test 2-5 wks not good for endogenous people
look for yeast within mphage
amphotecerin b
itraconazole
coccidoides immitis
valley fever- flu like meningeal involvement, skin lesions
cxr: eggshell
skin test 1-2 wks
precipitation and complement fixing AB
apheres and endospheres/ rupture to release
dimorphic
airborne arthroconidia
dustclouds, earthquakes
blastomyces dermatitis
broad based budding yeast
dimorphic
rural of SE and Central
lobar pneumonia--> disseminates
SKIN LESIONS papular ulcerated
paracoccidoides brasiliensis
parent cell with peripheral buds
dimorphic south american warm wet,
lobar pneumonia that disseminates
aspergillus
opportunistic
ascomyocete
filamentous fungus
septate hyphae
45 branching
secretes protinases whcih inhibit mucociliary sustem phagocytosis

causes: 1: acute asthma rxn
alergic bronchopulmonary aspergillosis type 1-3 arthus
fungus ball
pulmonary invasive aspergillosis

risk fxs CF
TB sarcoidosis cavitary CA
neutropenia
corticosteroid and itraconazole
zygomycetes
opportunistic nonseptate hyphae 90 branch
=mucormycosis
preferential to CNS
entry through nose, eyes palate
risk fxs DKA
increased FE
burn pts immuno def
Mycobacterium tuberculosis
rod shaped obligate anaerobe
heat sensitive
produce niacin
acid fast stain
facultive intracellular parasite
sulfatides: inhibit phagosome lysosome fusion. inhabits mphage
LAM: decreases mphage active
resp. droplet nuclei
insidious onset, fever weight loss, blood tinged sputum

culture on lowenstein jensem, middlebrook or liquid broth
mantoux test anergy with HIV
INH
rifampin,pyrazinimide, ethambutol etc.
BCG vaccination, not in US
MAC
only treated with rifabutine
and cipro

NOT P2P in water and soil
dissemination common
m kansasii
NOT P2P water and soil
ppd x reactivity
nocardia
beady gram positive
aerobe
patially acid fast
filamentous
found in soil
lung abscesses
and BRAIN ABSCESSES
sulfonimides