Upper and lower lobe distribution of bilateral pulmonary pathologies (mnemonic)
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Many pulmonary disease are described as upper or lower lobe predominant. The following mnemonics can aid recall of these differential diagnosis.
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Upperupper lobe or apical predominance: SET CAP -
Lowerlower lobe or bibasilar predominance: BAD RASH
Mnemonics
SET CAP
- S: silicosis/sarcoidosis
- E: EG/extrinsic allergic alveolitis
- T: TB/fungal
- C: cystic fibrosis
- A: ankylosing spondylitis
- P: PCP
BAD RASH
- B: bronchiectasis
- A: aspiration
- D: DIP
- R: rheumatoid arthritis
- A: asbestosis
- S: scleroderma (progressive systemic sclerosis)
- H: Hamman-Rich syndrome (Acute interstitial pneumonitis)
-<li>Upper lobe or apical predominance: SET CAP </li>-<li>Lower lobe or bibasilar predominance: BAD RASH</li>- +<li>upper lobe or apical predominance: SET CAP </li>
- +<li>lower lobe or bibasilar predominance: BAD RASH</li>
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