title: Percutaneous coil embolization of massive pelvic pseudoaneurysm in an infant.
abstract: Iatrogenic pseudoaneurysm formation is an uncommon but potentially serious complication of cardiac catheterization. This case report describes diagnosis and treatment of a large left external iliac artery pseudoaneurysm in a 3-month-old boy following cardiac catheterization and aortic balloon dilatation for aortic coarctation. A 4-cm pulsatile mass in the left hemipelvis was discovered on MRI performed 6 weeks later for possible tethered spinal cord. Sonography and angiography showed a large pseudoaneurysm of the left external iliac artery just distal to the iliac bifurcation with no flow in the external iliac artery distal to the pseudoaneurysm. Percutaneous US-guided thrombin injection was performed twice, with partial recanalization after each treatment. The residual portion of the pseudoaneurysm was then successfully embolized with percutaneous coils deployed under US and fluoroscopic guidance.
authors.affiliation: Division of Vascular and Interventional Radiology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Ave., Boston, MA, 02115, USA, anna.lillis@childrens.harvard.edu.
authors.forename: Anna P
authors.initials: AP
authors.lastname: Lillis
authors.forename: Raja
authors.initials: R
authors.lastname: Shaikh
authors.forename: Ahmad I
authors.initials: AI
authors.lastname: Alomari
authors.forename: Gulraiz
authors.initials: G
authors.lastname: Chaudry
mesh_terms: D017541:Aneurysm, False / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy*; D001017:Aortic Coarctation / Q000628:therapy; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D007223:Infant; D008297:Male; D015641:Radiography, Interventional; D013917:Thrombin / Q000008:administration & dosage; D018084:Ultrasonography, Interventional
chemical_list: D013917:Thrombin