Journal List > Tuberc Respir Dis > v.71(5) > 1001678

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Park, Park, Yoo, Jung, Eun, Kim, Park, Park, Jung, Kim, Kim, and Lee: A Case of Pneumonia and Parapneumonic Effusion Caused by Streptococcus parasanguinis
Case Report
Tuberculosis and Respiratory Diseases

Tuberculosis and Respiratory Diseases 2011; 71(5): 359-362.

Published online: 30 November 2011

DOI: https://doi.org/10.4046/trd.2011.71.5.359

A Case of Pneumonia and Parapneumonic Effusion Caused by Streptococcus parasanguinis

Myoung Rin Park, M.D., Dong Il Park, M.D., Su Jin Yoo, M.D., Sun Young Jung, M.D., Hyuk Soo Eun, M.D., Min Jung Kim, M.D., Ji Won Park, M.D., Hee Sun Park, M.D., Sung Soo Jung, M.D., Ju Ock Kim, M.D., Sun Young Kim, M.D., Jeong Eun Lee, M.D.

Department of Internal medicine, Chungnam National University School of Medicine, Daejeon, Korea.

Address for correspondence: Jeong Eun Lee, M.D. Department of Internal Medicine, Chungnam National University College of Medicine, 640, Daesa-dong, Jung-gu, Daejeon 301-721, Korea. Phone: 82-42-280-8035, Fax: 82-42-257-5753, vov-x@hanmail.net

Received 2 June 2011       Accepted 30 June 2011

Copyright © 2011. The Korean Academy of Tuberculosis and Respiratory Diseases. All rights reserved.

Abstract

Streptococcus parasanguinis is a Viridans group bacteria that is most often discovered in the oral cavity and causes dental plaque and endocarditis in a rat model. It has low virulence but an unknown relationship to human respiratory infections. We report on a 61-year-old woman who developed hemoptysis followed by pleuritic chest pain after conscious sedation during a gastroscopic polypectomy and was diagnosed with pneumonia and parapneumonic effusion from Streptococcus parasanguinis isolated in pleural fluid. Microaspiration during the procedure was presumed to play a role in the pathogenesis.

Keywords: Streptococcal Infections, Pneumonia, Pleural Effusion

Figures and Tables

Figure 1
Chest PA view and chest CT. (A) Chest PA at a local clinic shows no active lung lesion. (B, C) Chest CT at a local clinic shows ill defined nodules in the posterior segment of the right upper lobe with patchy ground glass opacity in the posterobasal segment of the right lower lobe. (D) Chest PA on admission. Focal consolidation is seen in the right lower lung field. (E, F) Chest CT on admission shows increased extent of consolidation with ground glass opacity in the right lower lobe and a small volume of pleural effusion in a right-sided hemithorax. PA: posterior anterior; CT: computed tomography.
trd-71-359-g001
Figure 2
Chest PA view and chest CT. (A) Chest PA on day 9 of admission. Improved consolidation and an increased volume of pleural effusion is shown in the right lung. (B~D) Chest CT on day 9 of admission. Near complete clearing of the previous consolidation in the posterobasal segment of the right lower lung and increased volume of pleural effusion, which was considered a hemothorax, is shown. (E) Chest PA about 3 months after discharge. Decreased volume of pleural effusion is shown compared with that of day 9 from admission. (F~H) Chest CT about 3 months after discharge shows neither pleural effusion nor consolidation. PA: posterior anterior; CT: computed tomography.
trd-71-359-g002

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