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Updated: Jul 13, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Syphilitic descending aortic aneurysm presenting with characteristic double-ring sign on CT: Radiologic-pathologic
Tsubasa Sugie1, Syohei Miyaguni2, Nanae Tsuchiya1
1Department of Radiology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.
This case study details a rare syphilitic aneurysm in the descending thoracic aorta, emphasizing the diagnostic role of CT scans, particularly the double-ring sign, in identifying this serious condition.
Area of Science:
- Cardiovascular Medicine
- Infectious Diseases
- Radiology
Background:
- Syphilitic aortitis is a rare but serious complication of untreated syphilis, often affecting the ascending aorta.
- Aneurysms of the descending thoracic aorta are less commonly associated with syphilis.
- Co-infection with COVID-19 can complicate the clinical presentation and diagnosis.
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