Lung space-occupying lesion is a mass shadow or neoplasm with a diameter larger than 3cm found when taking chest X-ray or lung CT, which may be caused by infection or lung tumor, and usually needs to be further diagnosed together with other tests in order to clarify the condition.
1. Lung space-occupying lesions may be infectious foci caused by bacterial or fungal infections. For example: lung abscess, tuberculosis ball, fungal infection and so on.
2. Possessive lesions in the lungs may be benign masses in the lungs, such as misshapen tumors and lung cysts. Benign masses usually have clearer borders than malignant tumors.
3. Possessive lesions in the lungs may also be malignant tumors of the lungs, such as the common bronchogenic lung cancer.
4. Lung-occupying lesions can also be chronic granulomas caused by less common diseases, such as Wegener’s sarcoma.