Work

18 F FDG PET-CT with CT Aortogram of Infected Ascending Aortic Pseudoaneurysm in a Patient with Pyrexia of Unknown Origin

Year: 2026

Type: article

Abstract: Ascending aortic pseudoaneurysm is a rare but potentially fatal complication after cardiac surgery, especially when infected. We report a 68-year-old man, one-year post-coronary artery bypass graft (CABG) and triple valve replacement, who presented with persistent fever of unknown origin. Inclusion of computed tomography (CT) aortogram protocol in routinely performed whole body 18 F fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) identified a pseudoaneurysm originating from the anterior ascending aortic wall with contrast opacification and a surrounding FDG-avid periaortic collection, favouring active infection. This case highlights the diagnostic value of whole-body PET/CT with CT aortogram in detecting infected ascending aortic pseudoaneurysm in complex postoperative patients with pyrexia of unknown origin.

Source: Indian Journal of Nuclear Medicine

DOI: 10.25259/ijnm_193_25

Authors: Meghana Prabhu, Abhishek Behera, Rohit Kumar Garg, Kailash Panwar

Institution: Amrita Vishwa Vidyapeetham

Language: English

Topic: Infectious Aortic and Vascular Conditions

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

OpenAlex ID: W7162192234