Lung Pathology V Flashcards
(38 cards)
anaerobic oral flora**
bacteroides
prevotella
fusobacterium
peptostreptococcus
aspiration pneumonia
aspiration pneumonia
anaerobe, aerobes, gram -, gram +
necrotizing pneumoniae
often with aspiration
-anaerobes
two patterns of bacterial pneumonia
bronchopneumonia and lobar
early pneumococcus
bronchopneumonia
late pneumococcus
lobar
stages of pneumococcal lobar pneumonia
- edema and congestion
- hemorrhage
- macrophages hepatization
hepatization
can occur with lobar pneumonia
red and white
viral pneumonia
pandemic H1N1
SARS
bird flu
antigenic shift** - animal virus recombination
antigenic drift - minor mutation
pulmonary abscess
staph aureus
mixed - with anaerboes
-bacteroides fragilis, fusobacterium, peptococcus
common cause pulmonary abscess
aspiration
- standing - right lower lobe
- lying - left upper lobe
ascending infection
transcervical
- inhale amniotic fluid
- bacterial and viral
hematologic infection
transplacental
-parasitic, viral, few, bacterial
TORCH - toxoplasma, rubella, cytomegalovirus, herpes, treponema pallidum
post deliver infection 0-7 days
group B strep and E. coli
post delivery infection 7-90 days
listeria and candida
most common cause of bronchiolitis and pneumonia in children <1 year
respiratory syncytial virus
associated with otitis media
CXR - hyperinflated lung fields
chronic pneumonias
often granulomas
tuberculosis
ghon complex - parenchymal lesion with involved lymph node
secondary infection - reactivation of walled off lesion - apical (high O2)
-cavitary caseous necrosis
miliary TB
tubercle erodes into vessel - widespread
TB without granulomas
seen in immunosuppressed
michigan, ohio fungal pneumonia
histoplasma capsulatum
-small
west, mexico, california fungal pneumonia
cocciodes immitis
-large
georgia, NC, SC
fungal pneumonia
blastomyces dermatidis
medium size
histoplasma capsulatum
michigan, ohio
coin lesion
budding yeast
smaller than RBC
