Mycotic pseudoaneurysm of the aortic isthmus secondary to salmonella infection causing a diagnostic dilemma

Authors

  • Syed Arafat Aftab
  • Uppaluri Srinivas Anand Swaroop

DOI:

https://doi.org/10.3941/jrcr.v13i4.3571

Keywords:

Mycotic pseudoaneurysm, salmonella, aortic arch, aortic isthmus, aneurysm, CT chest, infection, CT aortogram, endovascular repair

Abstract

Mycotic pseudoaneurysms usually arise from an infectious arteritis or mycotic aneurysms secondary to weakening and destruction of the arterial wall resulting in a contained rupture. We report a case of a mycotic pseudoaneurysm affecting the aortic isthmus of the thoracic aorta which is an extremely rare infection. To our knowledge no case report of mycotic pseudoaneurysm of the aortic isthmus secondary to salmonella infection has thus far been described. The specific case we present is also unique in that it posed a diagnostic imaging dilemma where the initial imaging revealed a periaortic mass which could not be accurately characterized and only on subsequent imaging reveal itself to be a thrombosed mycotic pseudoaneurysm. We hope that our case report highlights to the medical community the high degree of suspicion one should have regarding pseudoaneurysms when dealing with a complex mass intimately related to a vascular structure.

Author Biographies

Syed Arafat Aftab

Senior Resident

Department of Diagnostic Radiology 

Uppaluri Srinivas Anand Swaroop

Consultant

Department of Diagnostic Radiology 

Published

2019-03-29

Issue

Section

Thoracic Radiology