Conditions with lower lobe predominance (mnemonic)

Last revised by Sonam Vadera on 11 Aug 2022

Mnemonics for conditions with a lower lobe predominance in chest radiology include:

  • CIA
  • BAD AS
  • RASCO

Mnemonics

CIA
BAD AS
RASCO
  • R: rheumatoid arthritis
  • A: asbestosis
  • S: scleroderma
  • C: collagen vascular diseases
  • O: other (drugs, e.g. busulfan, bleomycin, nitrofurantoin, hydralazine, methotrexate, amiodarone)

See also

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