Mnemonics- Differential Diagnosis of Interstitial Lung Disease

Remember the differential diagnosis of Interstitial Lung Disease using the mnemonics FASSTEN and BAD RASH.

UPPER lung disease


  • Farmer’s lung (hypersensitivity pneumonitis)
  • Ankylosing spondylitis
  • Sarcoidosis
  • Silicosis
  • TB
  • Eosinophilic granuloma (Langerhans cell histiocytosis)
  • Neurofibromatosis

LOWER lung disease


  • BOOP
  • Asbestos
  • Drugs (nitrofurantoin, hydralazine, isoniazid, amiodarone, many chemotherapy drugs)
  • Rheumatological disease
  • Aspiration
  • Scleroderma
  • Hamman Rich (IPF) and idiopathic pulmonary fibrosis

Hope that mnemonic helped. Got a better mnemonic for the same? Let us know in the comments below.
Also check out these medical mnemonics

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