Related Experiment Video
Updated: Jun 7, 2026

The Stroke Preclinical Assessment Network Multi-Laboratory Model of Thromboembolic Stroke with Thrombolysis: TE-MCAo
Published on: December 19, 2025
May-Thurner syndrome found incidentally after left femoral catheterization in a pediatric patient
Kun Moo Lee1, Ji Kyoung Park, Se Hun Lim
1Department of Anesthesiology, Paik Hospital, Inje University, Busan, Korea.
Insights
May-Thurner syndrome, a rare condition causing left common iliac vein compression, was incidentally found in a child with juvenile myelomonocytic leukemia (JMML). The diagnosis occurred post-chemotherapy catheterization, with no associated symptoms or thrombosis.
Area of Science:
- Vascular Surgery
- Pediatric Oncology
- Radiology
Background:
- May-Thurner syndrome involves compression of the left common iliac vein, leading to potential stenosis and thrombosis.
- This condition is typically associated with chronic or repetitive mechanical stress.
Observation:
- A case report details May-Thurner syndrome discovered incidentally in a 25-month-old child undergoing chemotherapy for juvenile myelomonocytic leukemia (JMML).
- The diagnosis was made via computed tomography (CT) after femoral catheterization.
- The child presented with no symptoms directly related to the May-Thurner syndrome itself.
Findings:
- Computed tomography confirmed May-Thurner syndrome without evidence of deep vein thrombosis.
- The underlying cause of death was sepsis, unrelated to the vascular compression.
Implications:
- Highlights the importance of considering rare vascular anomalies in pediatric patients, even incidentally.
- Suggests that May-Thurner syndrome may exist asymptomatically in younger populations.
- Underscores the need for comprehensive diagnostic imaging in complex pediatric cases.
Abstract:
In May-Thurner syndrome, the left common iliac vein is compressed between the overlying right common iliac artery and the underlying vertebral body. Chronic and/or repetitive compressions at this site cause fibrosis of the vein and thus stenosis, potentially occluding the lumen. This report describes a case of May-Thurner syndrome discovered incidentally after femoral catheterization for chemotherapy in a 25-month-old child with juvenile myelomonocytic leukemia (JMML). The patient had no symptoms associated with compression. The syndrome was diagnosed by computed tomography, and there was no evidence of thrombosis. The patient died secondary to sepsis.
Related Concept Videos
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization II: Right Heart Catheterization
Mitral Stenosis II: Clinical features and Diagnostic Tests
Cardiac Catheterization IV: Nursing Management
Mitral Stenosis I: Introduction
Cardiac Catheterization I: Pre-Procedure Overview