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Flashcards in Lung Deck (10):
0

R upper lobe
- superior & anterior

R middle lobe
- anterior
- between costal cartilages 4 &6

R lower lobe
- inferior & posterior

Oblique fissure

Horizontal fissure
- level of costal cartilage 4
- meets oblique fissure at MAL

Diaphragmatic surface consists of middle & lower lobes

RIGHT LUNG

1

L upper lobe
- superior & anterior
- contains the cardiac notch

L lower lobe
- inferior & posterior

Lingula
- embryonic counterpart of R middle lobe, just beneath the cardia notch

Oblique fissure

Diaphragmatic surface consists of lower lobe

LEFT LUNG

2

Bronchopulmonary segment contains the ff:

Segmental bronchus (central part)

Branch of pulmonary (central part)

Branch of bronchial artery (central part)

Tributaries of pulmonary vein
- found at periphery, as surgical landmarks during segmental lung resection

3

Ghon complex = enlarged LN + parenchymal or subparenchymal lesion near a fissure

Primary TB

4

Lung apex

Begins as small consolidation, <3cm

Secondary TB

5

Caused by dissemination by lymphatics/blood

Maybe confined to lungs (scattered multiple nodules) or spread widely to other organs

Miliary TB

6

Patchy consolidation, multilobar, bilateral, basal

S. Pneumonia, Staph, H. Influenza, Pseudomonas & coliform bacilli

Bronchopneumonia

7

Consolidation of large part or entire lobe

S. Pneumonia, Klebsiella, type II pneumococcus

Elderly, alcoholics, diabetics

4 STAGES:
1. Initial acute congestion, intraalveolar fluid, few PMN, many bacteria
2. Early consolidation/red hepatization
- PMN & fibrin in alveoli
- red (RBC), firm, airless lung
- liver-like consistency
- lasts 2-4 days
3. Late consolidation/gray hepatization
- large amount of fibrin, lessening RBC & WBC
- gray-brown lung with dry-surface
- lasts 4-8 days
4. Resolution
- after 8 days

Lobar pneumonia

8

Autosomal recessive CR gene mutation which encodes for CFTR (CF transporter) that function as chloride ion channel

Abnormally thick ️mucus production by respiratory tract & GIT

Neonates --> MECONIUM ILEUS

childhood --> STEATORRHEA, bowel obstruction

Cor pulmonale develops secondary to pulmonary hypertension

Cystic fibrosis

9

Pulmonary artery occlusion by embolic clot from DVT in leg/pelvic area

Saddle embolus - large embolus at the main pulmonary artery or at its bifurcation --> sudden death

Causes pulmonary infarction

Risk factors: obesity, CA, pregnancy, OCP use, hypercoagulation, multiple bone function, burns, DVT

Pulmonary embolism