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Updated: Mar 10, 2026
Microdissection of Primary Renal Tissue Segments and Incorporation with Novel Scaffold-free Construct Technology
Published on: March 27, 2018
Successful microscopic renal autotransplantation for left renal aneurysm associated with segmental arterial
Takashi Yoshioka1, Motoo Araki1, Yuichi Ariyoshi1
1Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Abstract:
Segmental arterial mediolysis (SAM) is an uncommon, nonarteriosclerotic vascular disease. SAM is characterized by lysis of arterial media and can lead to aneurysm formation. The renal arteries are the third most common arteries associated with SAM. We report the case of a 32-year-old man with left renal artery aneurysm associated with SAM. We successfully performed left renal autotransplantation using microscopic vascular reconstruction. SAM is characterized by vascular fragility; therefore, microscopic surgery is favorable for treating aneurysms associated with SAM.
Insights
Segmental arterial mediolysis (SAM) is a rare vascular disease causing arterial weakening and potential aneurysms. Microscopic surgery proved effective for treating a left renal artery aneurysm caused by SAM in a young man.
Area of Science:
- Vascular Surgery
- Nephrology
- Pathology
Background:
- Segmental arterial mediolysis (SAM) is a rare, non-inflammatory vascular condition affecting the arterial media.
- It can lead to the formation of aneurysms, with renal arteries being commonly involved.
- Understanding SAM's pathophysiology is crucial for effective treatment strategies.
Observation:
- A case report details a 32-year-old male patient presenting with a left renal artery aneurysm.
- The aneurysm was diagnosed as being associated with Segmental arterial mediolysis (SAM).
- This highlights the potential for SAM to affect major arteries like the renal artery.
Findings:
- Successful surgical intervention was achieved through left renal autotransplantation.
- The procedure utilized microscopic vascular reconstruction techniques.
- This approach was chosen due to the inherent vascular fragility associated with SAM.
Implications:
- Microscopic surgery is a favorable approach for managing aneurysms stemming from SAM.
- This case underscores the importance of specialized surgical techniques for vascular fragility.
- Further research into SAM treatment modalities could improve patient outcomes.
