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CT findings of small cell lung carcinoma: Can recognizable features be found?

The purpose of this study was to clarify the recognizable computed tomography (CT) features of small cell lung carcinoma (SCLC). Contrast enhanced CT scans were reviewed retrospectively for mass location, mediastinal extension, and other concomitant findings in 142 patients with pathologically prove...

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Autores principales: Lee, Dongjun, Rho, Ji Young, Kang, Seunghun, Yoo, Koun Joy, Choi, Hye Jeong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer Health 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134877/
https://www.ncbi.nlm.nih.gov/pubmed/27893684
http://dx.doi.org/10.1097/MD.0000000000005426
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author Lee, Dongjun
Rho, Ji Young
Kang, Seunghun
Yoo, Koun Joy
Choi, Hye Jeong
author_facet Lee, Dongjun
Rho, Ji Young
Kang, Seunghun
Yoo, Koun Joy
Choi, Hye Jeong
author_sort Lee, Dongjun
collection PubMed
description The purpose of this study was to clarify the recognizable computed tomography (CT) features of small cell lung carcinoma (SCLC). Contrast enhanced CT scans were reviewed retrospectively for mass location, mediastinal extension, and other concomitant findings in 142 patients with pathologically proven SCLC. SCLC was classified into hilar mass only (type I), hilar mass with ipsilateral mediastinal extension (type II), hilar mass with bilateral mediastinal extension (type III), and peripheral mass (type IV). When mediastinal lymphadenopathy (m-LAP) was indistinguishable from a hilar mass, we defined it as a mediastinal conglomerate mass (m-CM). Type IIa or IIIa had ipsilateral or bilateral m-LAP and type IIb, IIIb or IIIc had ipsilateral or bilateral m-CM. Type I (n = 8, 5.6%), type II (n = 58, 40.8%), type III (n = 55, 38.8%), and type IV (n = 21, 14.8%) were manifested. The combination of a hilar mass and m-CM was found in 68 patients (47.9%). Type IV masses showed lobulation in 11, microlobulation in 4, both lobulated and irregular margins in 4, and spiculation in 2. A total of 120 patients (84.5%) had a bronchial stenosis/obstruction; single (n = 52) and 2 or more (n = 68). Ninety-five patients (67.0%) had vascular invasion including main/lobar pulmonary artery and superior vena cava, and 55 (38.7%) had pleural effusion and/or pleural nodules. Concomitant parenchymal findings (n = 92, 64.8%) were noted: contiguous consolidation/nodule (n = 45), hematogeneous spread (n = 32), lymphangitic spread (n = 21), obstructive pneumonia (n = 22), and obstructive atelectasis (n = 14). In conclusion, the recognizable CT features of SCLC were a hilar mass with m-CM. Most of the hilar masses showed 2 or more bronchial stenoses/obstructions. Most cases of peripheral SCLC manifested as a lobulated mass rather than a spiculated mass. Vascular invasion and concomitant parenchymal findings were observed commonly.
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spelling pubmed-51348772016-12-08 CT findings of small cell lung carcinoma: Can recognizable features be found? Lee, Dongjun Rho, Ji Young Kang, Seunghun Yoo, Koun Joy Choi, Hye Jeong Medicine (Baltimore) 6800 The purpose of this study was to clarify the recognizable computed tomography (CT) features of small cell lung carcinoma (SCLC). Contrast enhanced CT scans were reviewed retrospectively for mass location, mediastinal extension, and other concomitant findings in 142 patients with pathologically proven SCLC. SCLC was classified into hilar mass only (type I), hilar mass with ipsilateral mediastinal extension (type II), hilar mass with bilateral mediastinal extension (type III), and peripheral mass (type IV). When mediastinal lymphadenopathy (m-LAP) was indistinguishable from a hilar mass, we defined it as a mediastinal conglomerate mass (m-CM). Type IIa or IIIa had ipsilateral or bilateral m-LAP and type IIb, IIIb or IIIc had ipsilateral or bilateral m-CM. Type I (n = 8, 5.6%), type II (n = 58, 40.8%), type III (n = 55, 38.8%), and type IV (n = 21, 14.8%) were manifested. The combination of a hilar mass and m-CM was found in 68 patients (47.9%). Type IV masses showed lobulation in 11, microlobulation in 4, both lobulated and irregular margins in 4, and spiculation in 2. A total of 120 patients (84.5%) had a bronchial stenosis/obstruction; single (n = 52) and 2 or more (n = 68). Ninety-five patients (67.0%) had vascular invasion including main/lobar pulmonary artery and superior vena cava, and 55 (38.7%) had pleural effusion and/or pleural nodules. Concomitant parenchymal findings (n = 92, 64.8%) were noted: contiguous consolidation/nodule (n = 45), hematogeneous spread (n = 32), lymphangitic spread (n = 21), obstructive pneumonia (n = 22), and obstructive atelectasis (n = 14). In conclusion, the recognizable CT features of SCLC were a hilar mass with m-CM. Most of the hilar masses showed 2 or more bronchial stenoses/obstructions. Most cases of peripheral SCLC manifested as a lobulated mass rather than a spiculated mass. Vascular invasion and concomitant parenchymal findings were observed commonly. Wolters Kluwer Health 2016-11-28 /pmc/articles/PMC5134877/ /pubmed/27893684 http://dx.doi.org/10.1097/MD.0000000000005426 Text en Copyright © 2016 the Author(s). Published by Wolters Kluwer Health, Inc. All rights reserved. http://creativecommons.org/licenses/by-nc-nd/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0
spellingShingle 6800
Lee, Dongjun
Rho, Ji Young
Kang, Seunghun
Yoo, Koun Joy
Choi, Hye Jeong
CT findings of small cell lung carcinoma: Can recognizable features be found?
title CT findings of small cell lung carcinoma: Can recognizable features be found?
title_full CT findings of small cell lung carcinoma: Can recognizable features be found?
title_fullStr CT findings of small cell lung carcinoma: Can recognizable features be found?
title_full_unstemmed CT findings of small cell lung carcinoma: Can recognizable features be found?
title_short CT findings of small cell lung carcinoma: Can recognizable features be found?
title_sort ct findings of small cell lung carcinoma: can recognizable features be found?
topic 6800
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134877/
https://www.ncbi.nlm.nih.gov/pubmed/27893684
http://dx.doi.org/10.1097/MD.0000000000005426
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