Niche Neuro-Angiology Conference (NNAC)

Today, safer and less invasive treatments for cerebrovascular diseases have been pursued extensively, for instance, coil embolization for cerebral aneurysms and stenting for cervical carotid stenosis.


However, there are ignored diseases even now because of their rarity and requirement of broad involvements of physicians of the various medical fields.

Vascular anatomy is an essential knowledge for the safer endovascular treatment. Deep understanding of the normal anatomy, its variations, and pathological processes are requisite not only for the academic interests, but also for understanding of these diseases.


We established “niche neuro-angiology conference: NNAC” in November 2006 to provide the forum to discuss the above-mentioned topics.

Our themes are listed below

Functional vascular anatomy, embryology (phylogeny and ontology), and medical history,

Pathophysiology of the brain vascular diseases and their etiologies

Developmental biology and molecular biology

Pediatric vascular malformations (arterio-venous (AV) fistulas, AV malformations, vein of Galen aneurysmal malformations, dural AV shunts), and other pediatric vascular diseases including aneurysms, cerebral infarction, venous anomaly, sinus thrombosis, etc)

☆ Head and neck lesions (vascular malformations, hemangioma, hemangioblastomas, etc)

☆ Syndromic diseases (hereditary hemorrhagic telangiectasia, Cobb, Wyburn-Mason, Occlusion of the circle of Willis, so-called moyamoya, Phace, etc)


Next meeting (15th NNAC) will be held on 29th,May, 2021 in Osaka, Japan.

All lectures will be presented in Japanese.


Masaki Komiyama (Osaka City General Hospital, Osaka, Japan): delegate

Tomoya Ishiguro (Osaka City General Hospital, Osaka, Japan)

Takahiro Ota (Tokyo Metropolitan Tama Medical Center, Tokyo, Japan)

Naoki Toma (Mie University, Mie, Japan)