Related Experiment Video
Updated: Jun 4, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Giant cell aortitis: a difficult diagnosis assessing risk for the development of aneurysms and dissections
Andrew Lee1, Adriana Luk, Katharine R B Phillips
1Department of Pathology, Toronto General Hospital/University Health Network, Toronto, Ontario, Canada.
Insights
Giant cell arteritis can affect the aorta, leading to aneurysms and dissections. Early identification of this condition, even without prior diagnosis, is crucial for effective treatment.
Area of Science:
- Vascular Surgery
- Rheumatology
- Pathology
Background:
- Giant cell arteritis (GCA) commonly affects cranial arteries but can involve the aorta.
- Aortic aneurysms and dissections are serious complications of GCA.
Observation:
- Three cases of GCA aortitis were identified incidentally during pathological examination of surgically resected aortic aneurysms.
- Patients presented with aortic aneurysms, lacking prior clinical suspicion of an inflammatory condition.
Findings:
- Giant cell aortitis can be present without a prior diagnosis of GCA.
- Clinical presentation may not immediately suggest an underlying inflammatory process.
Implications:
- Early recognition of GCA aortitis is vital, even in cases without a history of GCA.
- Prompt diagnosis and initiation of immunosuppressive therapy can prevent catastrophic aortic events.
Abstract:
A significant location affected by giant cell (GC) arteritis is the ascending aorta, where aneurysms may develop and catastrophic ruptures and acute dissections can occur. Herein, we discuss three cases of GC aortitis discovered at pathological examination of surgically excised aortic aneurysmal tissue. There was no clinical suspicion of any underlying inflammatory process. We describe the main clinical features of the patients in conjunction with a review of the literature to identify any common clinical presentations that manifest in these patients. Giant cell aortitis in the absence of previously established GC arteritis is difficult to identify, and a careful analysis of the history and presentation along with appropriate investigations (e.g., erythrocyte sedimentation rate) may prompt the clinician to consider GC aortitis and suggest immunosuppressant therapy.
More Related Videos
Related Concept Videos
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aneurysm III: Interprofessional Care
Aneurysm I: Introduction
Aortic Regurgitation I: Introduction
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Aortic Regurgitation III: Medical Management

