頚静脈孔・大孔部髄膜腫

Jugular Foramen, Foramen Magnum Meningiomas

Point

・髄膜腫の発生部位，血管支配と各種手術アプローチの方法を考え，適切なアプローチを選択する．

・静脈洞が存在する後頭蓋窩の手術は，狭い術野で安全に手術を遂行するための解剖学的知識，術前準備が重要である．

・合併症回避のための各ステップにおけるtipsを学ぶ．

＊本論文中、［Video］マークのある図につきましては、関連する動画を見ることができます（公開期間：2027年8月まで）。

　The jugular foramen, also known as the foramen magnum, is a highly intricate region of the skull base through which numerous critical blood vessels and nerves traverse. Meningiomas, the most common tumors in neurosurgical pathology, can arise at any location where the meninges are present, posing significant challenges. Meningiomas involving the jugular foramen and sublingual neural tube are particularly notable for their potential to extend from intracranial to extracranial sites, necessitating familiarity with extracranial anatomy, which is not typically encountered in clinical practice. A comprehensive understanding of anatomical characteristics, along with an ample field of view and working space, is crucial for handling the cerebellum, brainstem, and nerves meticulously. The use of surgical support tools such as neuromonitoring and navigation is essential for enhancing the safety of the procedure. Furthermore, preparedness for treatment options, rehabilitation, and adjunctive therapies is vital in the event of neurological symptoms such as those affecting the glossopharyngeal, vagal, or hypoglossal nerves.