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Korean J Gastroenterol  <  Volume 73(4); 2019 <  Articles

Korean J Gastroenterol 2019; 73(4): 230-234  https://doi.org/10.4166/kjg.2019.73.4.230
Concomitant Liver and Brain Abscesses Caused by Parvimonas Micra
Eun Young Kim, Yang Hyun Baek , Dong Sik Jung1 and Kwang Sook Woo2
Divisions of Gastroenterology and Hepatology and Infectious Disease1, Department of Internal Medicine, Department of Laboratory Medicine2, Dong-A University Hospital, Busan, Korea
Correspondence to: Yang Hyun Baek, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Dong-A University Hospital, 26 Daesingongwon-ro, Seo-gu, Busan 49201, Korea.Tel: +82-51-240-2728, Fax: +82-51-240-2087, E-mail: p100100@dau.ac.kr, ORCID: https://orcid.org/0000-0002-9073-9233
Received: August 21, 2018; Revised: September 17, 2018; Accepted: September 26, 2018; Published online: April 25, 2019.
© The Korean Journal of Gastroenterology. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Anaerobic infections have been reported to be responsible for 3-10% of pyogenic liver abscesses in Korea, and reported anaerobes include Fusobacterium, Bacillus fragilis, and Bacteroides melaninogenicus. Parvimonas micra is an anaerobic, Gram-positive, non-spore-forming bacterial species and a constituent of normal flora on skin, vagina, gastrointestinal tract, and oral cavity that can cause opportunistic infections. However, it has only rarely been reported to be a cause of liver abscess; only one such case has been reported in Korea. We experienced a case of concomitant liver and brain abscesses caused by Parvimonas micra in a non-immunodeficient 65-year-old female patient without diabetes or periodontal disease. Parvimonas micra infection was confirmed by blood culture using VITEK? 2 cards and by bacterial 16s ribosomal RNA gene sequencing. We conclude that we should not overlook anaerobes as a cause of liver abscess.
Keywords: Liver abscess; Brain abscess; Parvimonas Micra; Bacteria, anaerobic

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