What is pulmonary granuloma?

Pulmonary granuloma is a pathological concept, which refers to the pathological appearance of granuloma in the lungs. Granulomatous lesions in the lungs may be seen in a variety of causes, among which infectious diseases are more common, such as tuberculosis is likely to cause granulomatous lesions, fungi are also likely to cause granulomatous lesions, especially Cryptococcus infection in the lungs may cause granulomatous lesions. In addition, non-infectious diseases can cause granulomatous lesions, such as foreign body granuloma, sarcoidosis, which is also an unexplained granulomatous lesion, and necrotizing granulomatous vasculitis, which is also a granulomatous lesion.