Infected Aortic Aneurysm Secondary to Pyogenic Flexor Tenosynovitis from Streptococcus pyogenes.

Infected aortic aneurysms are rare, and have a high mortality rate. Although not a major pathogen, Streptococcus pyogenes has been reported to cause infected aortic aneurysms. In the present case, the patient was hospitalized for pyogenic flexor tenosynovitis with S. pyogenes bacteremia. Despite drainage of the abscess around the flexor tendon and effective antimicrobial therapy, infected aneurysms developed in the abdomen and ascending aorta. Because of their rapid enlargement, these aneurysms were treated with in situ reconstruction. Although rare, the possibility that S. pyogenes is the causative pathogen of infected aortic aneurysms should be considered.