A Rare Case of Tissierella praeacuta Bacteremia in the Context of Lower Extremity Cellulitis

Abstract

Tissierella praeacuta (T. praeacuta)is a gram-variable obligate anaerobe. In this case report, we describe the first documented case of T. praeacuta bacteremia in a patient with sepsis resulting from lower extremity cellulitis without concomitant osteomyelitis. During the inpatient course, the patient was treated with IV vancomycin, cefepime, and ertapenem, in addition to surgical debridement and incision and drainage of his foot wound. The patient was discharged to a skilled care nursing facility on ertapenem with significant clinical improvement.

Keywords: gram-variable; lower extremity cellulitis; matrix-assisted laser desorption/ionization-time of flight; severe sepsis; tissierella praeacuta.