Sharp rib-diaphragm angle and thickened lung texture are imaging findings, with sharp rib-diaphragm angle being a normal finding and thickened lung texture suggesting possible lung pathologic changes. In general, in a normal person, the rib-diaphragm angle should be sharp on lateral imaging because the structures at the lower edge of the lungs are more acute. When the rib-diaphragm angle becomes blunted, it suggests that pathologic changes such as pleural inflammation or pleural effusion may be present and require aggressive treatment. Thickening of the pulmonary texture is an imaging manifestation of the lung parenchyma. Pulmonary texture is an image of the pulmonary blood vessels and lymphatic vessels that emanate radially from the hilum, and its thickening suggests that there may be pathological changes in the lungs. It is often seen in lung inflammation, mild edema, cancer, etc. In addition, some long-term smokers with chronic bronchitis may also have thickening of the lung texture. Imaging results need to be reviewed by a specialized physician, and the clinician needs to combine the results with other tests to diagnose the disease.