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Insights into Imaging
Fig. 3 | Insights into Imaging

Fig. 3

From: Significance of intra-nodular vessel sign in differentiating benign and malignant pulmonary ground-glass nodules

Fig. 3

CT images of patients with malignant GGNs. A 6-mm GGN (atypical adenomatous hyperplasia) in the right upper lobe without internal vessels (a). A PA branch without change is detected in an 8.5-mm GGN [adenocarcinomas in situ (AIS)] in the left lower lobe (b1: b2). Two vessels (1 PA and 1 PV) were detected in a 17.5-mm GGN (AIS) in the left upper lobe (c1: c2), the PV was thickened with rigid course. An irregularly thickened PV branch is detected in a 19.5-mm GGN (IA) in the left upper lobe (d1: d2)

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