A Surgical Case of Inflammatory Internal Iliac Artery Aneurysm Accompanied with Persistent Sciatic Artery

• Published in: Japanese Journal of Vascular Surgery Vol. 32; no. 3; pp. 197 - 201
• Main Authors: Mochizuki, Yasuaki, Hosoi, Yutaka, Isaji, Toshihiko, Nunokawa, Masao, Kubota, Hiroshi, Hoshina, Katsuyuki
• Format: Journal Article
• Language: Japanese
• Published: JAPANESE SOCIETY FOR VASCULAR SURGERY 23-06-2023
• Subjects: hydronephrosis; inflammatory iliac artery aneurysm; persistent sciatic artery
• ISSN: 0918-6778; 1881-767X
• DOI: 10.11401/jsvs.23-00028

A 65-year-old woman underwent a physical examination and right hydronephrosis was noted. A CT scan revealed an inflammatory aneurysm of the right internal iliac artery and persistent sciatic artery branched from the aneurysm without aneurysmal change. The right internal iliac artery aneurysm had a maximum shorter diameter of 32 mm, which was considered a relative indication. We decided to undergo open surgery to treat hydronephrosis which was thought to be caused by the inflammation of the aneurysm. We performed aneurysmectomy, abdominal aorta to left common iliac artery and to right external iliac artery bypass with artificial graft, and right leg of the graft to the persistent sciatic artery bypass. Postoperatively, the hydronephrosis was found to be improved and the bypasses were patent without any adverse events 18 months later. Under our surveillance of past reports, there were no reports of inflammatory aortic/artery aneurysm accompanied with persistent sciatic artery, and we assumed that there seems to be no pathologic relationship between them. However, both diseases were treated in the same operative field which had several treatment option; then we presented this case of open surgery for the rare two diseases.