Fig. 3From: Bubble-like lucency in pulmonary ground glass nodules on computed tomography: a specific pattern of air-containing space for diagnosing neoplastic lesionsThe air bronchogram sign in GGN (IAC) on multiplanar reformation image, which is manifested as branching air density connecting with proximal bronchus. GGN: ground glass nodule. IAC: invasive adenocarcinomaBack to article page