A few faint shadows in the apical posterior segment of the upper lobe and the basal segment of the lower lobe of the left lung may be related to pneumonia, tuberculosis, lung cancer, etc., and further examination is needed.
1. Pneumonia is the most common cause. Due to bacterial and viral infections, localized inflammatory reactions in the lungs, especially in the early stage of the disease, can appear similar to a small blurred shadow, due to inflammatory reactions.
2. Tuberculosis, due to Mycobacterium tuberculosis infection, can lead to a localized inflammatory reaction, can also appear similar in imaging. Mycobacterium tuberculosis test, sputum culture and other tests are needed for clarification.
3. Lung cancer, tumor metastasis or primary tumor, may appear burr sign, pulling sign and so on, then there may be fuzzy shadow, and pathological examination is needed to clarify the diagnosis.
The specific cause of the disease should be clarified after medical examination, and treatment should be carried out according to the doctor’s prescription at the same time.