title: Agenesis of the inferior vena cava associated with lower extremities and pelvic venous thrombosis.
abstract: The absence of the inferior vena cava is an uncommon congenital anomaly and can be misdiagnosed. We report a 14-year-old boy initially admitted as a result of a painful abdominal mass; after admission, he experienced a deep venous thrombosis in his left leg. Subsequent evaluation revealed the congenital absence of the entire inferior vena cava, with a cluster of thrombosed collateral veins in his right pelvis, corresponding to the abdominal mass. The recognition of this anomaly may be helpful in the event of differential diagnosis in retroperitoneal masses. In young patients with idiopathic deep venous thrombosis, an inferior vena cava anomaly should be considered.
authors.affiliation: Servicio de Angiología y Cirugía Vascular, Hospital General Universitario de Alicante, Alicante, Spain. jimenez_rob@gva.es
authors.forename: Roberto Jiménez
authors.initials: RJ
authors.lastname: Gil
authors.forename: Alberto Miñano
authors.initials: AM
authors.lastname: Pérez
authors.forename: Jorge Bercial
authors.initials: JB
authors.lastname: Arias
authors.forename: Fernando Bernabeu
authors.initials: FB
authors.lastname: Pascual
authors.forename: Eugenio Sansegundo
authors.initials: ES
authors.lastname: Romero
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005268:Femoral Vein; D006801:Humans; D007084:Iliac Vein; D008279:Magnetic Resonance Imaging; D008297:Male; D010388:Pelvis / Q000098:blood supply*; D010690:Phlebography; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000002:abnormalities*; D020246:Venous Thrombosis / Q000175:diagnosis*