A novel case of bilateral tubo-ovarian abscesses attributed to Ruminococcus gnavus without gastrointestinal involvement
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Updated: Nov 27, 2025

Catheterization of Intestinal Loops in Ruminants
Published on: June 11, 2009
Ruby Veale1, Carly Hughes2, Ian Woolley1
1Monash Infectious Diseases, Monash Health, Clayton Rd, Clayton, Vic, 3168, Australia; School of Clinical Sciences, Monash University, Clayton Rd, Clayton, Vic, 3168, Australia.
Abstract:
Ruminococcus gnavus is a Gram-positive anaerobe and normal gut commensal in the human host. There have been a small number of reported cases of infections attributed to R. gnavus, and no cases of urogenital infections have previously been published. We describe here a case of bilateral tubo-ovarian abscesses (TOAs) which cultured a pure growth of R. gnavus in a young female with concurrent deep infiltrating endometriosis and evidence of pelvic inflammatory disease. This case provides an insight into the behaviour of R. gnavus as a coloniser of the human host and provides further incentive to investigate its potentially pathogenic role in inflammatory conditions such as pelvic inflammatory disease.
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