Path 3

Question 1

Answer 1

Acute (short/days, neutrophils, edema, no fibrosis, vasodilation & permeability, fever, leukocytosis)

Chronic (long/weeks-months, lymphocytes & plasma cells, ?edema, fibrosis, neovascularization, granulation tissue, low grade fever, anemia, wt loss)

Question 2

Answer 2

center w/ caseation necrosis

Mycobacterium tuberculosis infection

Question 3

Answer 3

epithelioid histiocytes (macrophages) forming multinucleated Langhans Giant cells

Question 4

Answer 4

normal lung

Question 5

Answer 5

normal lung

Question 6

Answer 6

normal lung

Question 7

Answer 7

bronchopneumonia

• atypical pneumonia
• follows distribution of bronchi & bronchioles (patchy)
• staph aureus, klebsiella (abscess formation),
  e. coli, pseudomonas, nosocomial pna

Question 8

Answer 8

Question 9

Answer 9

acute bronchopneumonia

Question 10

Answer 10

acute bronchopneumonia

Question 11

Answer 11

acute lobar pneumonia

• solid congestion, almost entirety of lung lobe
• less common than bronchopna
• pneumococcus (strep pneumoniae)

Question 12

Answer 12

acute lobar pneumonia

Question 13

Answer 13

Question 14

Answer 14

acute pneumonia

Question 15

Answer 15

bronchopneumonia

Question 16

Answer 16

lobar pneumonia

Question 17

Answer 17

lobar pneumonia

Question 18

Answer 18

Aspiration pneumonia

• usually occurs in Rt lung d/t more vertical Rt main bronchus
• type of bronchopneumonia

Question 19

Answer 19

aspiration pna

-foreign bodies/aspirated material found w/in multinucleated giant cells/macrophages

Question 20

Answer 20

Complications of PNA

1. lung abscesses
2. Empyema (pus in pleural cavity)
3. Organization of exudates w/ pulmonary fibrosis
4. Sepsis
   - E.g. of lung abscess

Question 21

Answer 21

lung abscess, cavitation

Question 22

Answer 22

Lung abscess

Question 23

Answer 23

Ghon complex, primary TB

Question 24

Answer 24

secondary TB

Question 25

Answer 25

miliary TB -tuberculous bronchopneumonia

Question 26

Answer 26

miliary TB

Question 27

Answer 27

miliary TB

Question 28

Answer 28

miliary TB, multiple granulomas

Question 29

Answer 29

langhans giant cells in TB, epithelioid cells response to granulomas

Question 30

Answer 30

caseation necrosis in center of granuloma in TB

Question 31

Answer 31

AFB stain in TB

Question 32

Answer 32

Fungi can exist as mole (hyphae) or yeast (rounded)

Question 33

Answer 33

coccidiodes spherules (fungi)

Question 34

Answer 34

coccidioides (fungi)

Question 35

Answer 35

histoplasmosis (fungi)