Respiratory Pathology - 4 (other pneumonias) Flashcards
Lung abscesses can be complications of Pneumonia often caused by which 2 bacteria?
Staph. Aureus
Klebsiella Pneumoniae
Lung abscesses can also be seen with Aspiration Pneumonia. What patients are at an elevated risk for Aspiration Pneumonia?
Chronic alcoholics
Elderly (stroke)
What type of bacteria is commonly a culprit of Aspiration Pneumonia?
Anaerobic bacteria
What lobes of the lungs are preferentially affected by Aspiration Pneumonia and why?
RIGHT middle and lower lobes
– aspiration of food follows most down-sloping airway segment which is the right side
Lung abscesses can be a complication of pneumonia, often due to which 2 bacteria?
S. Aureus
K. Pneumoniae
Tuberculosis involves ____
Caseation = cheese necrosis
What is the complex called that is seen on the lungs with Tuberculosis?
Ghon complex - localized caseation
A primary infection of Tuberculosis can become latent. What can it turn into?
- Secondary Tuberculosis with reinfection or reactivation of primary infection
If Tuberculosis is severe enough, what will occur and what will be affected?
Hematogenous Dissemination
= Miliary Tuberculosis (spleen and liver)
Localized caseation of the lungs is seen with Tuberculosis, what is that complex called?
Ghon complex
What defines Chronic Pneumonia?
Pneumonia lasting for months in an immunocompetent patient
Chronic Pneumonia is often due to what type of organism?
Fungal
Which 3 fungal organisms are often at fault for Chronic Pneumonia?
Histoplasma Capsulatum
Blastomyctes Dermatitides
Coccidiodes Immitis
Which 3 fungal organisms are often at fault for Chronic Pneumonia?
Histoplasma Capsulatum
Blastomyces Dermatitides
Coccidiodes Immitis
Where is infection with Histoplasma Capsulatum common?
Midwest (ohio and MI river valleys) and caribbean
Symptoms of Histoplasma Capsulatum?
Subclinical (asymptomatic)
– if immunocompromised = more aggressive
What morphology of the yeast form will be seen with Histoplasma Capsulatum?
Pumpkin seed
Pumpkin seed morphology
Histoplasma Capsulatum
– chronic pneumonia
Where is infection with Blastomyces Dermatitides common?
Central and SE US (ohio and MI river valleys)
What else can Blastomyces Dermatitides affect?
Skin and sometimes disseminated infection
What morphology of the yeast is seen with Blastomyces Dermatitides?
Broad - Based Budding yeast
Broad Based Budding Yeast
Blastomyces Dermatitides
– chronic pneumonia
Where is infection with Coccidiodes Immitis common?
SW US and mexico
Symptoms of Coccidiodes Immitis?
Subclinical (asymptomatic)
– Disseminated infection in immunocompromised
