Acute interstitial pneumonitis must be differentiated from other diseases that present with respiratory failure and  diffuse infiltrates on chest radiographs. Some of the differntials include  ARDS, acute eosinophilic pneumonitis, Infections, hypersensitivity pneumonitis, connective tissue diseases, and drug-induced lung toxicity.
Hamman-Rich syndrome differential diagnosis
Papillorenal syndrome differential diagnosis
Acute kidney injury differential diagnosis
Mononucleosis differential diagnosis
Goodpasture syndrome differential diagnosis
Renal cell carcinoma differential diagnosis
Albinism differential diagnosis
Horseshoe kidney differential diagnosis