Group F Streptococcus: A Rare Cause of Mediastinal AbscessSingh, Vinita MD; Manohar, Sandhya MD; Thind, Sharanjeet MD; Basak, Prasanta MD; Lederman, Jeffrey MD; Jesmajian, Stephen MDInfectious Diseases in Clinical Practice: July 2014 - Volume 22 - Issue 4 - p e84–e85 doi: 10.1097/IPC.0000000000000121 Case Reports Abstract Author Information Group F streptococcus is a commensal of the gastrointestinal tract. A 68-year-old man had persistent fever following endoscopic biopsy of a subcarinal lymph node. He subsequently developed group F streptococcal bacteremia and a mediastinal abscess. The patient was successfully treated with administration of vancomycin and aztreonam and incision drainage. Group F streptococci are an emerging source of procedure-related infection with a predilection for abscess formation. This is a rare case of postprocedure group F streptococcus mediastinal abscess. From the Department of Medicine, Sound Shore Medical Center of Westchester and New York Medical College, NY. Correspondence to: Sandhya Manohar, MD, Department of Medicine, Sound Shore Medical Center, 16 Guion Pl, New Rochelle, NY 10801. E-mail: firstname.lastname@example.org. The authors have no funding or conflicts of interest to disclose. © 2014 by Lippincott Williams & Wilkins.