{Reference Type}: Case Reports {Title}: First reported case of Robinsoniella peoriensis pyometra and bloodstream infection: A case report and review of the literature. {Author}: Mejia-Gomez J;Zigras T;Patel Y;Wolfman W;Philippopoulos E;Shaltout N;Rotstein C;Laframboise S;Patel SN;Kus JV;Poutanen SM;Hosseini-Moghaddam SM;Mejia-Gomez J;Zigras T;Patel Y;Wolfman W;Philippopoulos E;Shaltout N;Rotstein C;Laframboise S;Patel SN;Kus JV;Poutanen SM;Hosseini-Moghaddam SM; {Journal}: Anaerobe {Volume}: 75 {Issue}: 0 {Year}: Jun 2022 {Factor}: 2.837 {DOI}: 10.1016/j.anaerobe.2022.102581 {Abstract}: We report on a 47-year-old woman with jejunal adenocarcinoma and concurrent endometrial cancer, admitted with sepsis. Uterine fluid and blood cultures were positive for Robinsoniella peoriensis. This is the first case report of Robinsoniella peoriensis in Canada. We encourage clinicians to publish their experience treating gynecologic infections caused by Robinsoniella peoriensis. Failure to recognize this pathogen as causative for pyometra, may result in insufficient antimicrobial treatment, and death.