Group G Streptococcus Septic Arthritis: An Unusual Cause

Abstract

Group G Streptococcus is a Gram positive bacteria which normally colonized the nasopharynx, skin and genital tract. It is unusual for this organism to cause serious infection. Here we reported a rare manifestation of septic arthritis caused by Streptococcus Group G in a 55 years old lady with underlying invasive breast cancer when she presented with a unilateral knee joint swelling associated with fever. Microbiological study of the pus aspirate identified Group G Streptococcus as the pathogenic organism. She was successfully treated with intravenous antibiotic and had a good recovery. This case highlighted a low virulence Streptococcus is worth identified in patients with underlying comorbid diseases and clinical interpretation is crucial.