Table 1.

Differential diagnosis of granulomatous lung disease.

Infectious lung diseases
Mycobacteria	Tuberculosis and non-tuberculous mycobacteria
Fungal	Cryptococcus neoformans, Coccidioides immitis, Histoplasma capsulatum, Blastomyces dermatitidis
Non-infectious lung diseases
Inflammatory	Sarcoidosis
	Bronchocentric granulomatosis
	Inflammatory bowel disease
Exposure/Toxins	Hypersensitivity pneumonitis
	Hot tub lung
	Berylliosis
	Talc
	Drug reactions
Aspiration pneumonia
Vasculitis	Granulomatosis with polyangiitis (GPA), eosinophilic granulomatosis with polyangiitis (EGPA)
Autoimmune diseases	Rheumatoid nodule