jugular fossa


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jug·u·lar fos·sa

[TA]
an oval depression near the posterior border of the petrous portion of the temporal bone, medial to the styloid process, in which lies the beginning of the internal jugular vein (jugular bulb);
Synonym(s): fossa jugularis [TA]

jugular fossa

a deep depression adjacent to the interior surface of the petrosa of the temporal bone of the skull.

jug·u·lar fos·sa

(jŭg'yū-lăr fos'ă) [TA]
An oval depression near the posterior border of the petrous portion of the temporal bone, medial to the styloid process, in which lies the beginning of the internal jugular vein (jugular bulb).

jugular fossa

On the base of the skull, a kidney bean-shaped depression in the undersurface of petrous portion of the temporal bone. The fossa is behind the carotid canal, from which it is separated by a ridge of bone, and it forms a pocket for the superior bulb of the jugular vein, just after the vein has exited the skull through the jugular foramen.
See also: fossa
References in periodicals archive ?
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.
By virtue of the tumor's involvement with the jugular fossa and beyond, as well as the patency and dominance of the jugular bulb, removal of the lesion usually requires a skull base approach.
Radiosurgery for jugular fossa meningiomas can be considered, especially in patients with atypical or malignant features and in the rare situation in which a patient has a single functioning sigmoid sinus and jugular bulb.
So skull base surgeons should continue to followprogress in radiosurgeryand regularly reassess its potential role in the management of jugular fossa meningiomas.