Augmentation mammaplasty is a common operation performed in the United Stat
es. Postoperative wound infections are rare, but can be devastating. Most o
ften, bacteria from the normal skin flora cause these infections, but more
atypical organisms can lead to similar situations. The authors present a ca
se of a prosthetic breast implant infected with Mycobacterium fortuitum aft
er augmentation mammaplasty. The patient, diagnosis, and treatment are disc
ussed so that others may recognize and treat this entity successfully befor
e encountering major complications. Although it is an infrequent occurrence
, plastic surgeons, infectious disease specialists, and primary care doctor
s who may see postoperative wound infections should be aware of this potent
ial pathogen. It is important in any postimplant infection and especially c
rucial in cases of unresolving or recurrent infections with unusual or even
clear drainage. With proper identification through acid-fast smear and cul
ture, multiagent therapy can be initiated early. Additional complications,
including implant removal, may thus be avoided.