Bird-On-Tree Appearance

Authors:

Nobuhiro Kanaji*, Nobuyuki Kita, Norimitsu Kadowaki and Shuji Bandoh

DOI: 10.23880/oajprs-16000104

Volume 1, Issue 1

Abstract

Birds can cause or mediate several pulmonary diseases including psittacosis and hypersensitivity pneumonitis called bird breeder’s lung. “Bud-in-tree” appearance is 2 to 4 mm centrilobular nodules or branching linear structures with more than one contiguous branching site and usually suggests bronchiolitis including diffuse panbronchiolitis and pulmonary infectious diseases such as mycobacterium infections. We here present a novel bird-related finding “bird-on-tree” appearance. In addition, birds can cause a nodule with spiculation called “nestoma”. These findings are usually observed only in winter.

Keywords:

Bird-on-tree; Bud-in-tree; Bird-in-tree; Nestoma; Adenocarcinoma

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