Isolation of Salmonella enterica Serovar Typhi from Breast Abscess : A Rare Extra-Intestinal Presentation

Abstract

Extra-intestinal manifestations of Salmonella enterica serovar Typhi are uncommon and usually occur in individuals with compromised immunity. Breast abscess caused by Salmonella Typhi is a rare clinical entity, particularly in non-lactating pregnant females. Here, we report the case of a 28 year old pregnant female (G4P3) who presented with a unilateral breast abscess. The patient had no significant past medical history or prior similar episodes. Surgical incision and drainage was performed, and pus aspirated from the breast was sent for microbiological evaluation. Culture yielded non-lactose fermenting colonies, which were biochemically suggestive of Salmonella species. Final identification was confirmed as Salmonella enterica serovar Typhi using API 10S and VITEK 2 automated identification system with excellent confidence. The patient responded well to surgical and medical management and was discharged in stable condition. This case highlights a rare extra-intestinal presentation of typhoid fever and emphasizes the importance of considering Salmonella Typhi as a potential etiological agent of breast abscess in pregnant patients residing in typhoid-endemic regions.