Infect Chemother.  2011 Apr;43(2):203-205. 10.3947/ic.2011.43.2.203.

Primary psoas abscess caused by Streptococcus agalactiae

• Lee JW
• Park SK
• Kim JY
• Park YS
• Seo YH
• Cho YK

• KMID: 1782362
• DOI: http://doi.org/10.3947/ic.2011.43.2.203

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.

Keyword

Psoas Abscess; Streptococcus agalactiae

MeSH Terms

Abscess
Adult
Diabetes Mellitus, Type 2
Dysuria
Female
Fever
Flank Pain
Hematoma
Humans
Intraabdominal Infections
Osteomyelitis
Penicillin G
Postpartum Period
Psoas Abscess
Retroperitoneal Space
Streptococcus
Streptococcus agalactiae
Suppuration
Walking
Penicillin G

Figure

• 

  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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