The procedure involved a left intact-wall tympanomastoidectomy, a facial recess approach to the middle ear that exposed the tumor (figure 2), a retrofacial approach to the jugular bulb and skull base, a resection of the intra- and extracranial components of the jugular bulb neoplasm via a transmastoid approach to the hypotympanum and jugular fossa, and placement of a lumbar drain.
Primary jugular fossa meningiomas arise from arachnoid cells that line the jugular bulb in the jugular fossa.
Although basal posterior fossa meningiomas are likely to grow into the jugular fossa through the jugular foramen, primary jugular fossa meningiomas are extremely rare.
The jugular fossa and jugular foramen are frequently confused for each other, and these two terms are sometimes used interchangeably.
Jugular fossa meningiomas frequently invade bone, including the jugular spine and the jugular tubercle.