Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis

Abstract Lymphangioleiomyomatosis (LAM) is a rare destructive lung disease characterized by multiple thin-walled pulmonary cysts. The currently proposed diagnostic algorithm emphasizes the characteristic cystic appearance on high-resolution computed tomography (HRCT) so uncommon HRCT appearances pre...

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Autores principales: Yasuhito Sekimoto, Kazuhiro Suzuki, Makiko Okura, Takuo Hayashi, Hiroki Ebana, Toshio Kumasaka, Keiko Mitani, Koichi Nishino, Shouichi Okamoto, Etsuko Kobayashi, Kazuhisa Takahashi, Kuniaki Seyama
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:061298c7bdce432fb4472fcc89a179592021-12-02T14:23:14ZUncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis10.1038/s41598-021-85999-52045-2322https://doaj.org/article/061298c7bdce432fb4472fcc89a179592021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85999-5https://doaj.org/toc/2045-2322Abstract Lymphangioleiomyomatosis (LAM) is a rare destructive lung disease characterized by multiple thin-walled pulmonary cysts. The currently proposed diagnostic algorithm emphasizes the characteristic cystic appearance on high-resolution computed tomography (HRCT) so uncommon HRCT appearances present challenges to establishing the proper LAM diagnosis. The objective of this study is to accrue uncommon chest HRCT appearances, determine frequencies in both tuberous sclerosis complex (TSC)-associated LAM (TSC-LAM) and sporadic LAM (S-LAM) patients. 311 females referred to our hospital, including 272 S-LAM patients (mean age 39.2 years) and 39 TSC-LAM patients (mean age 38.3 years), were retrospectively evaluated. We found 2 types of radiologic findings likely to make HRCT cyst appearance atypical: characteristics of the cyst itself and uncommon findings in addition to cysts. We found that approximately 80% of LAM patients, whether TSC-associated or sporadic, showed typical HRCT appearance with mild to severe cystic destruction. The remaining 20% displayed unusual profiles in cyst appearance as well as additional findings aside from cyst: the former includes large cyst, thickened walls, and irregularly shaped whereas the latter includes ground glass attenuation and diffuse noncalcified nodules. It is important to be aware of various radiologic findings that make HRCT cystic appearance atypical of LAM.Yasuhito SekimotoKazuhiro SuzukiMakiko OkuraTakuo HayashiHiroki EbanaToshio KumasakaKeiko MitaniKoichi NishinoShouichi OkamotoEtsuko KobayashiKazuhisa TakahashiKuniaki SeyamaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yasuhito Sekimoto
Kazuhiro Suzuki
Makiko Okura
Takuo Hayashi
Hiroki Ebana
Toshio Kumasaka
Keiko Mitani
Koichi Nishino
Shouichi Okamoto
Etsuko Kobayashi
Kazuhisa Takahashi
Kuniaki Seyama
Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
description Abstract Lymphangioleiomyomatosis (LAM) is a rare destructive lung disease characterized by multiple thin-walled pulmonary cysts. The currently proposed diagnostic algorithm emphasizes the characteristic cystic appearance on high-resolution computed tomography (HRCT) so uncommon HRCT appearances present challenges to establishing the proper LAM diagnosis. The objective of this study is to accrue uncommon chest HRCT appearances, determine frequencies in both tuberous sclerosis complex (TSC)-associated LAM (TSC-LAM) and sporadic LAM (S-LAM) patients. 311 females referred to our hospital, including 272 S-LAM patients (mean age 39.2 years) and 39 TSC-LAM patients (mean age 38.3 years), were retrospectively evaluated. We found 2 types of radiologic findings likely to make HRCT cyst appearance atypical: characteristics of the cyst itself and uncommon findings in addition to cysts. We found that approximately 80% of LAM patients, whether TSC-associated or sporadic, showed typical HRCT appearance with mild to severe cystic destruction. The remaining 20% displayed unusual profiles in cyst appearance as well as additional findings aside from cyst: the former includes large cyst, thickened walls, and irregularly shaped whereas the latter includes ground glass attenuation and diffuse noncalcified nodules. It is important to be aware of various radiologic findings that make HRCT cystic appearance atypical of LAM.
format article
author Yasuhito Sekimoto
Kazuhiro Suzuki
Makiko Okura
Takuo Hayashi
Hiroki Ebana
Toshio Kumasaka
Keiko Mitani
Koichi Nishino
Shouichi Okamoto
Etsuko Kobayashi
Kazuhisa Takahashi
Kuniaki Seyama
author_facet Yasuhito Sekimoto
Kazuhiro Suzuki
Makiko Okura
Takuo Hayashi
Hiroki Ebana
Toshio Kumasaka
Keiko Mitani
Koichi Nishino
Shouichi Okamoto
Etsuko Kobayashi
Kazuhisa Takahashi
Kuniaki Seyama
author_sort Yasuhito Sekimoto
title Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
title_short Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
title_full Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
title_fullStr Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
title_full_unstemmed Uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
title_sort uncommon radiologic computed tomography appearances of the chest in patients with lymphangioleiomyomatosis
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/061298c7bdce432fb4472fcc89a17959
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