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Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians
The right azygos lobe is a rare anatomical variant of the upper lung lobe that can be misdiagnosed as a neoplasm, a lung abscess, or a bulla. The aim of this study was to assess the prevalence of right azygos lobe and to evaluate the ability of postgraduate doctors to correctly identify right azygos...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400486/ https://www.ncbi.nlm.nih.gov/pubmed/32664403 http://dx.doi.org/10.3390/diagnostics10070470 |
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author | Al-Mnayyis, Asma’a Al-Alami, Zina Altamimi, Neveen Alawneh, Khaled Z. Aleshawi, Abdelwahab |
author_facet | Al-Mnayyis, Asma’a Al-Alami, Zina Altamimi, Neveen Alawneh, Khaled Z. Aleshawi, Abdelwahab |
author_sort | Al-Mnayyis, Asma’a |
collection | PubMed |
description | The right azygos lobe is a rare anatomical variant of the upper lung lobe that can be misdiagnosed as a neoplasm, a lung abscess, or a bulla. The aim of this study was to assess the prevalence of right azygos lobe and to evaluate the ability of postgraduate doctors to correctly identify right azygos lobe. We analyzed a total of 1709 axial thoracic multi-detector computed tomography (CT) images for the presence of an azygos lobe. Additionally, a paper-based survey was distributed among a sample of intern doctors and radiology and surgery residents, asking them to identify the right azygos lobe in a CT image and in an anatomy figure. Results showed that the prevalence of the right azygos lobe in the study sample was 0.88%. Men have more right azygos lobes than women. None of the intern doctors or surgery residents identified the right azygos lobe correctly, whereas more than half (57.1%) of the radiology residents did. Most of the incorrect answers about the CT scan were related to the bronchi (25.0%). The apex of the lung (17.7%) and the superior vena cava (17.7%) were the most common incorrect answers about the anatomy figure. In conclusion, the prevalence of the right azygos lobe in the current study is within the range of previously published literature. More education should be given for the identification of the right azygos lobe during anatomy and clinical teaching. |
format | Online Article Text |
id | pubmed-7400486 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74004862020-08-07 Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians Al-Mnayyis, Asma’a Al-Alami, Zina Altamimi, Neveen Alawneh, Khaled Z. Aleshawi, Abdelwahab Diagnostics (Basel) Article The right azygos lobe is a rare anatomical variant of the upper lung lobe that can be misdiagnosed as a neoplasm, a lung abscess, or a bulla. The aim of this study was to assess the prevalence of right azygos lobe and to evaluate the ability of postgraduate doctors to correctly identify right azygos lobe. We analyzed a total of 1709 axial thoracic multi-detector computed tomography (CT) images for the presence of an azygos lobe. Additionally, a paper-based survey was distributed among a sample of intern doctors and radiology and surgery residents, asking them to identify the right azygos lobe in a CT image and in an anatomy figure. Results showed that the prevalence of the right azygos lobe in the study sample was 0.88%. Men have more right azygos lobes than women. None of the intern doctors or surgery residents identified the right azygos lobe correctly, whereas more than half (57.1%) of the radiology residents did. Most of the incorrect answers about the CT scan were related to the bronchi (25.0%). The apex of the lung (17.7%) and the superior vena cava (17.7%) were the most common incorrect answers about the anatomy figure. In conclusion, the prevalence of the right azygos lobe in the current study is within the range of previously published literature. More education should be given for the identification of the right azygos lobe during anatomy and clinical teaching. MDPI 2020-07-10 /pmc/articles/PMC7400486/ /pubmed/32664403 http://dx.doi.org/10.3390/diagnostics10070470 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Al-Mnayyis, Asma’a Al-Alami, Zina Altamimi, Neveen Alawneh, Khaled Z. Aleshawi, Abdelwahab Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title | Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title_full | Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title_fullStr | Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title_full_unstemmed | Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title_short | Azygos Lobe: Prevalence of an Anatomical Variant and Its Recognition among Postgraduate Physicians |
title_sort | azygos lobe: prevalence of an anatomical variant and its recognition among postgraduate physicians |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400486/ https://www.ncbi.nlm.nih.gov/pubmed/32664403 http://dx.doi.org/10.3390/diagnostics10070470 |
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