Cargando…
Influenza A (H1N1) pneumonia: HRCT findings
OBJECTIVE: To describe aspects found on HRCT scans of the chest in patients infected with the influenza A (H1N1) virus. METHODS: We retrospectively analyzed the HRCT scans of 71 patients (38 females and 33 males) with H1N1 infection, confirmed through laboratory tests, between July and September of...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Sociedade Brasileira de Pneumologia e Tisiologia
2013
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4075839/ https://www.ncbi.nlm.nih.gov/pubmed/23857688 http://dx.doi.org/10.1590/S1806-37132013000300009 |
_version_ | 1782323403095539712 |
---|---|
author | Amorim, Viviane Brandão Rodrigues, Rosana Souza Barreto, Miriam Menna Zanetti, Gláucia Hochhegger, Bruno Marchiori, Edson |
author_facet | Amorim, Viviane Brandão Rodrigues, Rosana Souza Barreto, Miriam Menna Zanetti, Gláucia Hochhegger, Bruno Marchiori, Edson |
author_sort | Amorim, Viviane Brandão |
collection | PubMed |
description | OBJECTIVE: To describe aspects found on HRCT scans of the chest in patients infected with the influenza A (H1N1) virus. METHODS: We retrospectively analyzed the HRCT scans of 71 patients (38 females and 33 males) with H1N1 infection, confirmed through laboratory tests, between July and September of 2009. The HRCT scans were interpreted by two thoracic radiologists independently, and in case of disagreement, the decisions were made by consensus. RESULTS: The most common HRCT findings were ground-glass opacities (85%), consolidation (64%), or a combination of ground-glass opacities and consolidation (58%). Other findings were airspace nodules (25%), bronchial wall thickening (25%), interlobular septal thickening (21%), crazy-paving pattern (15%), perilobular pattern (3%), and air trapping (3%). The findings were frequently bilateral (89%), with a random distribution (68%). Pleural effusion, when observed, was typically minimal. No lymphadenopathy was identified. CONCLUSIONS: The most common findings were ground-glass opacities and consolidations, or a combination of both. Involvement was commonly bilateral with no axial or craniocaudal predominance in the distribution. Although the major tomographic findings in H1N1 infection are nonspecific, it is important to recognize such findings in order to include infection with the H1N1 virus in the differential diagnosis of respiratory symptoms. |
format | Online Article Text |
id | pubmed-4075839 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Sociedade Brasileira de Pneumologia e Tisiologia |
record_format | MEDLINE/PubMed |
spelling | pubmed-40758392014-07-16 Influenza A (H1N1) pneumonia: HRCT findings Amorim, Viviane Brandão Rodrigues, Rosana Souza Barreto, Miriam Menna Zanetti, Gláucia Hochhegger, Bruno Marchiori, Edson J Bras Pneumol Original Articles OBJECTIVE: To describe aspects found on HRCT scans of the chest in patients infected with the influenza A (H1N1) virus. METHODS: We retrospectively analyzed the HRCT scans of 71 patients (38 females and 33 males) with H1N1 infection, confirmed through laboratory tests, between July and September of 2009. The HRCT scans were interpreted by two thoracic radiologists independently, and in case of disagreement, the decisions were made by consensus. RESULTS: The most common HRCT findings were ground-glass opacities (85%), consolidation (64%), or a combination of ground-glass opacities and consolidation (58%). Other findings were airspace nodules (25%), bronchial wall thickening (25%), interlobular septal thickening (21%), crazy-paving pattern (15%), perilobular pattern (3%), and air trapping (3%). The findings were frequently bilateral (89%), with a random distribution (68%). Pleural effusion, when observed, was typically minimal. No lymphadenopathy was identified. CONCLUSIONS: The most common findings were ground-glass opacities and consolidations, or a combination of both. Involvement was commonly bilateral with no axial or craniocaudal predominance in the distribution. Although the major tomographic findings in H1N1 infection are nonspecific, it is important to recognize such findings in order to include infection with the H1N1 virus in the differential diagnosis of respiratory symptoms. Sociedade Brasileira de Pneumologia e Tisiologia 2013 /pmc/articles/PMC4075839/ /pubmed/23857688 http://dx.doi.org/10.1590/S1806-37132013000300009 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Amorim, Viviane Brandão Rodrigues, Rosana Souza Barreto, Miriam Menna Zanetti, Gláucia Hochhegger, Bruno Marchiori, Edson Influenza A (H1N1) pneumonia: HRCT findings |
title | Influenza A (H1N1) pneumonia: HRCT findings
|
title_full | Influenza A (H1N1) pneumonia: HRCT findings
|
title_fullStr | Influenza A (H1N1) pneumonia: HRCT findings
|
title_full_unstemmed | Influenza A (H1N1) pneumonia: HRCT findings
|
title_short | Influenza A (H1N1) pneumonia: HRCT findings
|
title_sort | influenza a (h1n1) pneumonia: hrct findings |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4075839/ https://www.ncbi.nlm.nih.gov/pubmed/23857688 http://dx.doi.org/10.1590/S1806-37132013000300009 |
work_keys_str_mv | AT amorimvivianebrandao influenzaah1n1pneumoniahrctfindings AT rodriguesrosanasouza influenzaah1n1pneumoniahrctfindings AT barretomiriammenna influenzaah1n1pneumoniahrctfindings AT zanettiglaucia influenzaah1n1pneumoniahrctfindings AT hochheggerbruno influenzaah1n1pneumoniahrctfindings AT marchioriedson influenzaah1n1pneumoniahrctfindings |