Pulmonary Computed Tomography Findings in 39 Cases of Streptococcus pneumoniae Pneumonia
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概要
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Objective The main objective of our study was to describe the pulmonary distribution of consolidation and ground-glass opacity (GGO) in chest computed tomography (CT) scans of Streptococcus pneumoniae pneumonia. In addition, the percentage of other pulmonary abnormalities was also reported. Methods We retrospectively evaluated chest CT examinations performed between November 2008 and January 2010 in 39 patients with S. pneumoniae pneumonia. Eight patients with Haemophilus influenzae pneumonia were also included for comparison. Patients There were 19 women and 28 men with clinical symptoms of fever and productive cough and laboratory findings of leukocytosis with markedly high C-reactive protein levels. Chest X-ray scores before and after treatment were calculated. The average score before treatment was 4. The average score after treatment was 0. Parenchymal abnormalities were evaluated along with the presence of enlarged lymph nodes and pleural effusions. The distribution of parenchymal disease was also analyzed. Results The chest CT findings in the patients with S. pneumoniae pneumonia consisted primarily of consolidation (56.4%), ground-glass opacity (71.7%), interlobular reticular opacity (69.2%), centrilobular nodules (53.8%), interlobular septal thickening (46.6%), bronchial wall thickening (46.6%), lymph node enlargement (10.2%) and pleural effusion (10.2%). Segmental distribution (65.7%) was seen more frequently than non-segmental distribution (35.9%). Abnormal findings were noticed bilaterally in 14 patients and unilaterally in 25 patients. On both the right and left sides, predominant zonal distributions were seen in the lower lobes. In contrast, among the eight patients with H. influenzae pneumonia, one patient had both segmental and non-segmental distributions and the remaining seven patients had only segmental distributions. Conclusion In conclusion, segmental distributions of parenchymal abnormalities are more common than non-segmental distributions on chest CT scans of patients with S. pneumoniae pneumonia.
著者
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Aoki Nobuki
Department Of Internal Medicine Shinrakuen Hospital
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Kaku Mitsuo
Department Of Clinical And Laboratory Medicine Tohoku University Graduate School Of Medicine
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Hori Seiji
Department Of Academic Surgery (m9) Graduate School Of Medicine Chiba University
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Kadota Jun-ichi
Department Of Internal Medicine Faculty Of Medicine Oita University
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Niki Yoshihito
Department Of Clinical Infectious Diseases School Of Medicine Showa University
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Fujita Jiro
Department Of Infectious Respiratory And Digestive Medicine Control And Prevention Of Infectious Dis
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Higa Futoshi
Department Of Infectious Respiratory And Digestive Medicine Control And Prevention Of Infectious Dis
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Haroon Attiya
Department Of Infectious Respiratory And Digestive Medicine Control And Prevention Of Infectious Dis
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Watanabe Akira
Research Center For Advanced Science And Technology The University Of Tokyo
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Kohno Shigeru
Nagasaki Univ. Graduate School Of Biomedical Sci. Nagasaki
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Yanagihara Katsunori
Department Of Clinical Laboratory Nagasaki University Hospital
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Yanagihara Katsunori
Department of Laboratory Medicine, Nagasaki University Hospital, Japan
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Cash Haley
Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases (The First Department of Internal Medicine), Faculty of Medicine, University of the Ryukyus, Japan
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Cash Haley
Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus, Japan
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Niki Yoshihito
Department of Clinical Infectious Diseases, School of Medicine, Showa University, Japan
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Aoki Nobuki
Department of Internal Medicine, Shinrakuen Hospital, Japan
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Kadota Jun-ichi
Department of Internal Medicine 2, Oita University Faculty of Medicine, Japan
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Watanabe Akira
Research Division for Development of Anti-Infective Agents, Institute of Development, Aging and Cancer, Tohoku University, Japan
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Haroon Attiya
Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus, Japan
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Higa Futoshi
Department of Infections, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus, Japan
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Kadota Jun-ichi
Department of Infectious Diseases, Oita University Faculty of Medicine
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