Infectious pulmonary granulomas 1, tuberculosis, nontuberculous branching bacilli 2, histoplasma, cryptococcus, Aspergillus, pneumocystis, coccidioides 3, filariasis, ascariasis, encapsulation 4, aspiration pneumonia Noninfectious granulomas 1, nodular disease 2, allergic pneumonia 3, silicosis, beryllium lung 4, Wegener’s granulomatosis, allergic vasculitic granulomatosis (pathology: necrotizing vasculitis, tissue eosinophilic granulocytic infiltrates, and extravascular granulomas; imaging: transient lamellar or nodular pulmonary infiltrates, or diffuse interstitial lesions, with a few nodular foci and pleural effusions), necrotizing nodular granulomatosis (pathology: fused nodular-like or epithelioid granulomas with vasculitis and extensive necrosis; imaging: extensive infiltrates or small nodules in the lungs), bronchocentric granulomatosis (pathology: early fine bronchial mucosa is replaced by histiocytes, followed by eosinophilic non-caseating, necrotizing granulomas distributed in the fine bronchi; imaging: infiltrative shadows, single or multiple nodules, and pulmonary opacities), lymphomatoid granulomatosis 5, Langerhans histiocytosis 6, rheumatoid nodules