Yersinia enterocolítica as an unusual cause of infection at a vascular bypass site

Cámara-Reyes R.R.; Agurto-Lescano E.C.; Chávez-Santillán Y.M. · Anales de la Facultad de Medicina (2026) · DOI: 10.15381/anales.v87i2.31960

Resumen

Yersinia enterocolitica is an infrequent cause of extraintestinal disease, usually associated with systemic risk factors; soft tissue infections are exceptional. We present the case of a 79-year-old male with a history of a right femoropopliteal bypass graft who developed a deep thigh abscess from which Y. enterocolitica was cultured. The clinical course was complex, featuring a superinfection by an ESBL-producing Escherichia coli that required a supracondylar amputation for source control. This case highlights that Y. enterocolitica should be considered in the differential diagnosis of abscesses in patients with local risk factors such as vascular surgery, even without classic immunosuppression, underscoring the importance of microbiological diagnosis and aggressive multidisciplinary management.