Clostridium sordellii is a Gram-positive spore-forming anaerobic bacillus r
arely encountered in human infection, A case of C. sordellii ischio-rectal
abscess with rapidly fatal septicaemia is described which complicated ultra
sound-guided transrectal biopsy of the prostate, despite ciprofloxacin prop
hylaxis. Neither C, sordellii ischio-rectal abscess nor ischio-rectal absce
ss complicating transrectal biopsy have been reported previously Judging fr
om our experience and the reviewed literature, the addition of prophylactic
anti-anaerobe drugs should be strongly considered until an optimal prophyl
actic regimen will be defined by randomized controlled trials.