Causes of patchy shadows in the right upper lung: first, pneumonia is more likely, sputum culture examination can be performed, if sputum examination and disease examination do not find cancer cells and tuberculosis, consider mechanized pneumonia, CT examination can also be performed, general inflammation can be anti-inflammatory treatment, two weeks later to review. Second, tuberculosis, if there is low fever, cough, sputum, chest pain, dyspnea can be examined, and by taking sputum for sputum culture, or PPD can determine whether it is tuberculosis. Third, tumor, if the lung shadow does not improve after treatment, or even more serious, and the examination density is increased, lung puncture or bronchoscopy is needed for examination.