Median skull base corresponds to intracranial region of the brain stem, pituitary gland and adjacent several cranial nerves, ICA and cavernous sinus and extracranial structures include the sphenoid sinus and nasopharynx.

• 中间颅底颅内面撑托垂体、脑干、毗邻多组颅神经及重要血管，而且大部分中间颅底肿瘤对放疗化疗均不敏感，因此肿瘤彻底切除一直是颅底外科研究的热门课题。