The CT Diagnosis of Solitary Pulmonary Nodules

Objective For promoting the CT diagnostic accuracy rate of solitary pulmonary nodules.Materials and Methods The CT specificities of 41 cases solitary pulmonary nodules(diameter≤3 cm)proved pathologically were analyzed retrospectively.Discuss the diagnosis and differential diagnosis signs of benign and malignant mature solitary pulmonary nodules.Results Presence of spiculation,deeplobulation,pleural tages,spiculate protuberance,contrast enhancement of tumor more than 20 Hu,occurred more frequentry inmalignant than benign lesion.Presence of more calcification,margin smoth ring enhancement or contrast enhancement less than 15 Hu of nodule, occurred more freequently in benign than malignant lesion.Conclusion Knowwing the various CT specific signs of benign and malignant mature solitary pulmonaty nodule would help to increase the diagnostic level.