Fig. 7
From: Beyond bronchitis: a review of the congenital and acquired abnormalities of the bronchus
Classic imaging signs of bronchiectasis. a Signet ring sign is a CT finding referring to a markedly enlarged bronchus (*) mimicking a ring and its adjacent normal accompanying pulmonary artery representing the signet emblem of the ring (arrow). b Finger-in-glove sign describes the presence of mucous or fluid impaction within a dilated bronchus (dashed arrow) appearing as a radiopaque “finger” in the “glove” of the bronchus