Fig. 1From: Abnormal origin of the right posterior segmental bronchus: case report and literature reviewA + B + C, Preoperative lung CT; a mixed ground-glass nodule (arrow) measuring approximately 17 mm × 8 mm with a CT value of -700 HU was observed in the posterior segment of the right upper lobe. D, Postoperative lung CT. CT, computed tomographyBack to article page