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I have read your query and gone through the x-ray (attachment removed to protect patient identity).
If a person has TB (tuberculosis), certain changes appear in the lungs which are detected by x-ray. The commonly seen changes are opacification of airspaces within the lung parenchyma. Any cavity in the lung lesion. Calcification can exist around a cavity and nodule with poorly defined margins.
Pleural effusion - presence of a significant amount of fluid within the lung space. Hilar or mediastinal lymphadenopathy (bilateral hilar lymphadenopathy) - enlargement of lymph nodes in the lungs. Your chest x-ray has been described as normal which means that there is no evidence of any disease according to the x-ray.