Multimodality imaging and 3D-printing of a thoraco-abdominal aortic aneurysm eroding into the spine
David J Winkel, Edin Mujagic, Daniel Staub, Dorothee Harder, Jens Bremerich, Markus M Obmann
Radiol Case Rep . 2022 Dec 5;18(2):657-660. doi: 10.1016/j.radcr.2022.11.020. eCollection 2023 Feb.
A rare case of a previously treated thoraco-abdominal aortic aneurysm eroding into the thoracic spine is described. Initially, several follow-up CT angiography scans showed an increasing aneurysm sack, but no endoleak could be depicted. Then, a new rapidly developing erosion into the thoracic spine was noted. MRI imaging excluded any other underlying infectious or malignant process. Additional contrast-enhanced ultrasound excluded an endoleak. A 3D-printed model of the aneurysm and spine and cinematic renderings were created to improve visualization. She underwent relining of the thoracic stent graft. Follow-up imaging showed a stable aneurysm size and no progression of the vertebral erosions.