Generally, the CT value of a pulmonary nodule cannot be used to determine the benign or malignant nature of the nodule, and the diagnosis of the nature of a pulmonary nodule must be based on the pathological and immunohistochemical results of the nodule.
Lung nodules are generally divided into two categories: benign and malignant. Clinically, there are differences between benign and malignant lung nodules in terms of nodule size, morphology, growth rate, relationship with surrounding tissues, CT value, and degree of enhancement, so it is possible to distinguish between benign and malignant nodules on the basis of these differences, but it is not completely accurate.
Generally, most malignant lung nodules are more than 5mm in size, irregular in shape, fast growing, often adherent to the surrounding tissues, with negative or positive CT values, and generally with irregular or moderate enhancement.
The above differences between benign and malignant lung nodules can only initially distinguish between the two types of nodules, and patients need to further follow the doctor’s instructions to choose the biopsy of the nodule and pathological examination to completely distinguish between benign and malignant lung nodules.