What reason is there a small nodule in the lung? How to treat it?

Disease analysis: Pulmonary sarcoidosis is a chronic granulomatous disease of non-caseous epithelium with unknown etiology and involving multiple systems and organs. Lesions can automatically absorb or develop into fibrosis. More than 90% involve the chest, often invading bilateral hilar lymph nodes and lungs. Suggestion: Generally speaking, if the physical examination finds white spots or speckled calcification in the lung or the physical examination report states "shadow (small nodule) in the lung", then in order to determine the nature of the nodule, it is best to do chest CT or fiberoptic bronchoscopy for further examination. Nodular lesions are generally not easy to identify, so it is necessary to combine the medical history to comprehensively judge the nature of the lesions for regular review. If the nodule does not change, become smaller or even disappear after long-term review, it means that the patient has no problem; However, if the reexamination finds that the lesion becomes larger, especially in the short term, it means that it is not benign and must be treated in time. I suggest you check it regularly.