Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing
<p>Abstract</p> <p>Background</p> <p>The Japanese Respiratory Society guidelines propose a differential diagnosis for atypical pneumonia and bacterial pneumonia using a scoring system for the selection of appropriate antibiotic. In order to improve this scoring system,...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2009-04-01
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| Series: | BMC Medical Imaging |
| Online Access: | http://www.biomedcentral.com/1471-2342/9/7 |
| _version_ | 1818563624523792384 |
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| author | Ouchi Kazunobu Yamaguchi Tetsuya Oda Keiko Kawai Yasuhiro Sugiu Tadaaki Miyashita Naoyuki Kobashi Yoshihiro Oka Mikio |
| author_facet | Ouchi Kazunobu Yamaguchi Tetsuya Oda Keiko Kawai Yasuhiro Sugiu Tadaaki Miyashita Naoyuki Kobashi Yoshihiro Oka Mikio |
| author_sort | Ouchi Kazunobu |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>The Japanese Respiratory Society guidelines propose a differential diagnosis for atypical pneumonia and bacterial pneumonia using a scoring system for the selection of appropriate antibiotic. In order to improve this scoring system, the guidelines are seeking new specific parameter. The purpose of this study was to clarify the pattern of abnormalities with <it>Mycoplasma pneumoniae </it>pneumonia on chest computed tomography (CT) and whether the radiographic findings could distinguish <it>M. pneumoniae </it>pneumonia from <it>Streptococcus pneumoniae </it>pneumonia.</p> <p>Methods</p> <p>A retrospective review was performed of the CT findings of 64 cases and 68 cases where <it>M. pneumoniae </it>and <it>S. pneumoniae</it>, respectively, were the only pathogen identified by the panel of diagnostic tests used.</p> <p>Results</p> <p>Of the 64 patients with <it>M. pneumoniae </it>pneumonia, bronchial wall thickening was observed most frequently (81%), followed by centrilobular nodules (78%), ground-glass attenuation (78%), and consolidation (61%). Bronchial wall thickening and centrilobular nodules were observed more often in <it>M. pneumoniae </it>patients than in <it>S. pneumoniae </it>patients (<it>p </it>< 0.0001). The presence of bilateral bronchial wall thickening or centrilobular nodules was only seen in patients with <it>M. pneumoniae </it>pneumonia. Using the scoring system of the Japanese Respiratory Society guidelines and chest CT findings, 97% of <it>M. pneumoniae </it>patients were suspected to be <it>M. pneumoniae </it>pneumonia without serology. When comparing the CT findings between early stage and progressed stage in the same patients with severe pneumonia, the radiographic features of early stage <it>M. pneumoniae </it>pneumonia were not observed clearly in the progressed stage.</p> <p>Conclusion</p> <p>The present results indicate that the diagnosis of <it>M. pneumoniae </it>pneumonia would appear to be reliable when found with a combination of bronchial wall thickening and centrilobular nodules in the CT findings. However, these CT findings are not observed in progressed severe <it>M. pneumoniae </it>pneumonia patients.</p> |
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| format | Article |
| id | doaj.art-8b5265adc6dd4b35b5dd1408330adaa9 |
| institution | Directory Open Access Journal |
| issn | 1471-2342 |
| language | English |
| last_indexed | 2024-12-14T01:18:50Z |
| publishDate | 2009-04-01 |
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| series | BMC Medical Imaging |
| spelling | doaj.art-8b5265adc6dd4b35b5dd1408330adaa92022-12-21T23:22:30ZengBMCBMC Medical Imaging1471-23422009-04-0191710.1186/1471-2342-9-7Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timingOuchi KazunobuYamaguchi TetsuyaOda KeikoKawai YasuhiroSugiu TadaakiMiyashita NaoyukiKobashi YoshihiroOka Mikio<p>Abstract</p> <p>Background</p> <p>The Japanese Respiratory Society guidelines propose a differential diagnosis for atypical pneumonia and bacterial pneumonia using a scoring system for the selection of appropriate antibiotic. In order to improve this scoring system, the guidelines are seeking new specific parameter. The purpose of this study was to clarify the pattern of abnormalities with <it>Mycoplasma pneumoniae </it>pneumonia on chest computed tomography (CT) and whether the radiographic findings could distinguish <it>M. pneumoniae </it>pneumonia from <it>Streptococcus pneumoniae </it>pneumonia.</p> <p>Methods</p> <p>A retrospective review was performed of the CT findings of 64 cases and 68 cases where <it>M. pneumoniae </it>and <it>S. pneumoniae</it>, respectively, were the only pathogen identified by the panel of diagnostic tests used.</p> <p>Results</p> <p>Of the 64 patients with <it>M. pneumoniae </it>pneumonia, bronchial wall thickening was observed most frequently (81%), followed by centrilobular nodules (78%), ground-glass attenuation (78%), and consolidation (61%). Bronchial wall thickening and centrilobular nodules were observed more often in <it>M. pneumoniae </it>patients than in <it>S. pneumoniae </it>patients (<it>p </it>< 0.0001). The presence of bilateral bronchial wall thickening or centrilobular nodules was only seen in patients with <it>M. pneumoniae </it>pneumonia. Using the scoring system of the Japanese Respiratory Society guidelines and chest CT findings, 97% of <it>M. pneumoniae </it>patients were suspected to be <it>M. pneumoniae </it>pneumonia without serology. When comparing the CT findings between early stage and progressed stage in the same patients with severe pneumonia, the radiographic features of early stage <it>M. pneumoniae </it>pneumonia were not observed clearly in the progressed stage.</p> <p>Conclusion</p> <p>The present results indicate that the diagnosis of <it>M. pneumoniae </it>pneumonia would appear to be reliable when found with a combination of bronchial wall thickening and centrilobular nodules in the CT findings. However, these CT findings are not observed in progressed severe <it>M. pneumoniae </it>pneumonia patients.</p>http://www.biomedcentral.com/1471-2342/9/7 |
| spellingShingle | Ouchi Kazunobu Yamaguchi Tetsuya Oda Keiko Kawai Yasuhiro Sugiu Tadaaki Miyashita Naoyuki Kobashi Yoshihiro Oka Mikio Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing BMC Medical Imaging |
| title | Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing |
| title_full | Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing |
| title_fullStr | Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing |
| title_full_unstemmed | Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing |
| title_short | Radiographic features of <it>Mycoplasma pneumoniae </it>pneumonia: differential diagnosis and performance timing |
| title_sort | radiographic features of it mycoplasma pneumoniae it pneumonia differential diagnosis and performance timing |
| url | http://www.biomedcentral.com/1471-2342/9/7 |
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