Objective To investigate the application value of multi-slice spiral CT(MSCT)in the differential diagno-sis of cystic lung cancer and thin-walled cavitary pulmonary nodules.Method A total of 110 patients with cystic lung cancer and 110 patients with thin-wall cavitary pulmonary nodules were selected as the observation group and the control group,respectively.All patients underwent MSCT examination,MSCT imaging features of the two groups were com-pared,and the MSCT signs of the two groups were quantitatively analyzed.Result There were statistically significant differences in lesion edge,tumor lung interface,number of air spaces,inner wall smoothness,internal structure,surround-ing structure,morphological classification,honeycomb sign and ground glass sign between the two groups(P＜0.05).The wall thickness of air space in the observation group was significantly lower than that in the control group,and the differ-ence was statistically significant(P＜0.01).Conclusion There are some differences in the MSCT signs between cystic lung cancer and thin-walled cavitary pulmonary nodules.MSCT examination is helpful in the differential diagnosis of the two diseases.
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