Thin-section CT features of fissure-attached nodules in asymptomatic patients
10.3969/j.issn.1002-1671.2015.06.009
- VernacularTitle:无症状人群肺裂结节的薄层 CT 表现
- Author:
Ying ZHOU
;
Shiyuan LIU
;
Zhenyue YANG
;
Qiong LI
;
Peng WANG
- Publication Type:Journal Article
- Keywords:
lung;
pulmonary fissure;
nodule;
computed tomography
- From:
Journal of Practical Radiology
2015;(6):917-920
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the thin-section CT features of fissure-attached nodules in asymptomatic patients.Methods The baseline and follow-up CT images of 120 asymptomatic patients with fissure-attached nodules were retrospectively analyzed.The thin-section CT findings include size,shape,density,interface,and the relationship with pulmonary fissure.Results There were 1 67 fissure-attached nodules of the 120 patients.The mean length of nodules was 5.46 mm±2.276 mm (2 - 1 5 mm).104(104/1 67,61.1%)nodules were less than 5 mm in length.1 63 (1 63/1 67,97.6%)nodules were typical and 4 (4/1 67,2.4%)nodules were atypical.All these nodules manifested as homogenous,solid,smooth interface,and widely adjacent to the fissure on CT ima-ges.Among those nodules,1 64(1 64/1 67,98.2%)nodules were triangular(88/1 67,52.7%)or oval(76/1 67,45.5%).126(126/1 67, 75.4%)nodules were abutting the major fissure.The angle between nodule and fissure was obtuse in 1 64(1 64/1 67,98.2%)fissure-attached nodules.During follow-up,4(4/1 67,2.4%)nodules increased in size and the corresponding volume doubling time (VDT) range was 863-4 228 days.However,no obvious malignant signs were found.Conclusion The thin-section CT images of fissure-attached nodules in asymptomatic patients showed the benign characteristics,most of which less than 5 mm and demonstrated trian-gle or oval,smooth interface and homogenous solid density.
