Primary psoas abscess caused by Streptococcus agalactiae

Ji Won Lee; Sung Keun Park; Jin Yong Kim; Yoon Soo Park; Yiel Hae Seo; Yong Kyun Cho

doi:10.3947/ic.2011.43.2.203

Journal List > Infect Chemother > v.43(2) > 1035075

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Lee, Park, Kim, Park, Seo, and Cho: Primary psoas abscess caused by Streptococcus agalactiae

Case Report

Infection & Chemotherapy

Infection & Chemotherapy 2011; 43(2): 203-205.

Published online: 30 April 2011

DOI: https://doi.org/10.3947/ic.2011.43.2.203

Primary psoas abscess caused by Streptococcus agalactiae

Ji Won Lee¹, Sung Keun Park¹, Jin Yong Kim¹, Yoon Soo Park¹, Yiel Hae Seo², Yong Kyun Cho¹

¹Department of Internal Medicine, Gachon University of Medicine and Science, Gil Hospital, Incheon, Korea.

²Department of Laboratory Medicine, Gachon University of Medicine and Science, Gil Hospital, Incheon, Korea.

Correspondence to Yong Kyun Cho, M.D. Department of Internal Medicine, Gachon University of Medicine and Science, Gil Hospital, 1198, Guwol-dong, Namdong-gu, Incheon 405-760, Korea. Tel: +82-32-460-8203, Fax: +82-32-472-1578, karmacho@gmail.com

Received 5 February 2010 Revised 11 November 2010 Accepted 11 November 2010

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Group B streptococcus (Streptococcus agalactiae, GBS), a primary pathogen in postpartum infection, has rarely been reported in psoas abscess. Primary proas abscess occurs less frequently than secondary abscess, which originates from infections of adjacent organs, such as intraabdominal infection, osteomyelitis, perirenal abscess, and retroperitoneal hematomas. We describe a case of primary psoas abscess caused by GBS. A 44-year-old woman with type 2 diabetes mellitus presented with left flank pain, intermittent fever, dysuria, and discomfort during walking. Abdominal CT showed multiseptated cystic mass in wide areas of the retroperitoneal space. Pus culture showed Streptococcus agalactiae. The patient responded to penicillin G treatment for 3 weeks.

Keywords: Psoas Abscess, Streptococcus agalactiae

Figures and Tables

Figure 1

(A) Large peripheral enhancing multiseptated cystic mass in left retroperitoneal space is abutting the left lateral and posterior chest wall, psoas major muscle, quadratus lumborum muscle, and iliacus muscle. (B) Nearly disappeared peripheral enhancing multiseptated fluid collection is seen in the left retroperitoneal space after pus draining and antibiotics therapy.

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