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Published in: Abdominal Radiology 11/2018

01-11-2018 | Classics in Abdominal Radiology

Tree-in-bud sign

Authors: Quentin Minault, Anne Karol, Francis Veillon, Aina Venkatasamy

Published in: Abdominal Radiology | Issue 11/2018

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Excerpt

The tree-in-bud pattern represents bronchiolar luminal impaction with mucus, pus or fluid, which demarcates the normally invisible branching course of the distal peripheral pathways, thus resembling a tree branch studded with buds on High-Resolution CT of the lungs (Figs. 1, 2) [1]. This sign corresponds to small (2–4 mm) and peripheral (close to the pleural surface) well-defined small nodules of soft-tissue attenuation which are connected to linear branching opacities with more than one contiguous branching site [1]. It is a pattern of centrolobular nodules characterized by impaction of the terminal bronchioles.
Literature
1.
go back to reference Attaya M, Attaya E, Islam E (2014) Tree-in-bud. Southwest Respir Crit Care Chron 2(8):42–43CrossRef Attaya M, Attaya E, Islam E (2014) Tree-in-bud. Southwest Respir Crit Care Chron 2(8):42–43CrossRef
2.
go back to reference Im JG, Itoh H, Shim YS, et al. (1993) Pulmonary tuberculosis: CT findings–early active disease and sequential change with antituberculous therapy. Radiology 186(3):653–660CrossRef Im JG, Itoh H, Shim YS, et al. (1993) Pulmonary tuberculosis: CT findings–early active disease and sequential change with antituberculous therapy. Radiology 186(3):653–660CrossRef
3.
go back to reference Collins J, Blankenbaker D, Stern EJ (1998) CT patterns of bronchiolar disease: what is “tree-in-bud”? AJR Am J Roentgenol 171(2):365–370CrossRef Collins J, Blankenbaker D, Stern EJ (1998) CT patterns of bronchiolar disease: what is “tree-in-bud”? AJR Am J Roentgenol 171(2):365–370CrossRef
4.
go back to reference Rossi SE, Franquet T, Volpacchio M, Giménez A, Aguilar G (2005) Tree-in-bud pattern at thin-section CT of the lungs: radiologic-pathologic overview. Radiographics 25(3):789–801CrossRef Rossi SE, Franquet T, Volpacchio M, Giménez A, Aguilar G (2005) Tree-in-bud pattern at thin-section CT of the lungs: radiologic-pathologic overview. Radiographics 25(3):789–801CrossRef
Metadata
Title
Tree-in-bud sign
Authors
Quentin Minault
Anne Karol
Francis Veillon
Aina Venkatasamy
Publication date
01-11-2018
Publisher
Springer US
Published in
Abdominal Radiology / Issue 11/2018
Print ISSN: 2366-004X
Electronic ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-018-1562-8

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