# Distal Radial Artery Aneurysm of the Dorsal Branch with Ulnar Artery Occlusion: A Case Report

**Authors:** Yoshihiko Onishi, Akihiro Sasahara, Saya Ishikawa, Kenjiro Sakaki, Ko Shibata, Masaki Nie, Kuniyoshi Ohara

PMC · DOI: 10.3400/avd.cr.25-00064 · Annals of Vascular Diseases · 2026-02-26

## TL;DR

This case report describes a rare radial artery aneurysm with ulnar artery blockage in an elderly woman and the surgical approach used.

## Contribution

The novelty lies in highlighting the importance of detailed preoperative imaging and assessment in complex radial artery aneurysm cases.

## Key findings

- Aneurysmectomy and radial artery reconstruction using a vein graft were performed successfully.
- Intraoperative findings showed preserved distal perfusion despite absent ulnar flow.
- The case emphasizes the need for careful evaluation of hand arterial anatomy before surgery.

## Abstract

We report a rare case of a radial artery aneurysm associated with ulnar artery occlusion in an 80-year-old female. Preoperative imaging showed poor visualization of the palmar arch and absent ulnar flow, prompting aneurysmectomy and radial artery reconstruction using a vein graft. Intraoperative findings revealed good retrograde flow, suggesting preserved distal perfusion. This case highlights the importance of accurate preoperative assessment of hand arterial anatomy, particularly the palmar arch, in determining the need for revascularization in radial artery aneurysms with compromised collateral circulation.

## Full-text entities

- **Diseases:** Ulnar Artery Occlusion (MESH:D001157), hypertension (MESH:D006973), dyslipidemia (MESH:D050171), atherosclerotic (MESH:D050197), necrotic injury (MESH:D014947), True radial artery aneurysms (MESH:D002532), thrombosis (MESH:D013927), carotid stenosis (MESH:D016893), mycotic (MESH:D000785), Artery (MESH:D012078), Aneurysms (MESH:D000783), infection (MESH:D007239), atrial fibrillation (MESH:D001281), ischemic (MESH:D002545), chronic renal failure (MESH:D007676), rupture (MESH:D012421), pseudoaneurysm (MESH:D017541), type 2 diabetes mellitus (MESH:D003924), embolism (MESH:D004617), peripheral arterial disease (MESH:D058729), retinal artery occlusion (MESH:D015356), unstable angina (MESH:D000789), neurological deficits (MESH:D009461), stenosis (MESH:D003251), ischemia (MESH:D007511), vascular anomalies (MESH:D020785)
- **Chemicals:** oxygen (MESH:D010100)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12950523/full.md

## References

10 references — full list in the complete paper: https://tomesphere.com/paper/PMC12950523/full.md

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Source: https://tomesphere.com/paper/PMC12950523