RT Journal Article SR Electronic T1 The Use of CT Pattern in Differentiating Non-invasive, Minimally Invasive and Invasive Variants of Lung Adenocarcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 4479 OP 4482 DO 10.21873/anticanres.15257 VO 41 IS 9 A1 HYNEK MIRKA A1 JIRI FERDA A1 GABRIELA KRAKOROVA A1 JOSEF VODICKA A1 PETR MUKENSNABL A1 ONDREJ TOPOLCAN A1 RADEK KUCERA YR 2021 UL http://ar.iiarjournals.org/content/41/9/4479.abstract AB Background/Aim: This study determined whether computed tomography (CT) is an appropriate means by which to differentiate non-invasive and minimally invasive forms of pulmonary adenocarcinoma from the invasive variant. Patients and Methods: A total of 64 patients (38 men and 26 women, aged 42-76, mean age 64), who underwent surgery for pulmonary adenocarcinoma and a chest CT no less than 1 month before surgery, were included in the study. Lesions exhibiting ground glass opacity or ground glass opacity with a solid component of 5 mm or smaller, were defined as minimally invasive or non-invasive adenocarcinomas. CT findings were correlated with histopathological examination. Results: Distinguishing minimally invasive and non-invasive adenocarcinoma from invasive adenocarcinoma using CT was achieved with a sensitivity of 77.7%, a specificity of 97.8%, a positive predictive value of 93.3%, and a negative predictive value of 91.8%. Conclusion: CT can be useful in assessing the degree of invasiveness of pulmonary adenocarcinoma and is a potential tool for the individualization of treatment.