Medial type persistent trigeminal artery associated with a saccular aneurysm at its trunk
- 11.01.2021
- Anatomic Variations
Erschienen in:
- Verfasst von
- Akira Uchino
- Hitoshi Ohno
- Ryushi Kondo
- Shoichiro Ishihara
- Erschienen in
- Surgical and Radiologic Anatomy | Ausgabe 3/2021
Abstract
There are four types of fetal anastomosis between the carotid and vertebrobasilar arteries at 5 weeks gestation; from caudal to cranial position, these involve the proatlantal intersegmental, hypoglossal, otic, and trigeminal arteries. Excluding otic artery, these arteries may persist rarely. Persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis, and the medial type (intrasellar) PTA is quite rare, accounting for approximately 10% of all PTA cases. An aneurysm is occasionally found at the origin of the PTA. Rarely, an aneurysm arises at the trunk of the PTA. Using magnetic resonance angiography, we identified a case of medial type PTA with an unruptured saccular aneurysm at its trunk.
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- Titel
- Medial type persistent trigeminal artery associated with a saccular aneurysm at its trunk
- Verfasst von
-
Akira Uchino
Hitoshi Ohno
Ryushi Kondo
Shoichiro Ishihara
- Publikationsdatum
- 11.01.2021
- Verlag
- Springer Paris
- Erschienen in
-
Surgical and Radiologic Anatomy / Ausgabe 3/2021
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517 - DOI
- https://doi.org/10.1007/s00276-020-02656-8
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