Duodenocaval fistula from inferior vena cava filter penetration masquerading as lower gastrointestinal bleeding.

Asymptomatic penetration of the inferior vena cava (IVC) wall with retrievable filters is not uncommon. Occasionally, this can be a cause for morbidity, and rarely for mortality. We present a case of duodenocaval fistula, secondary to penetration from a strut of retrievable IVC filter that presented as lower gastrointestinal bleeding and discuss the subsequent management. Although newer generation retrievable filters provide a longer time for retrieval, they are associated with an increased incidence of IVC wall penetration, caudal migration, and occasionally symptomatic presentation, thereby necessitating surgical intervention. Close follow-up is warranted, and prompt retrieval of such devices should be done when their use is no longer indicated.