Type:
Educational Exhibit
Keywords:
Education and training, Education, MR, CT, Neuroradiology brain
Authors:
P. A. Gutierrez1, M. Perez Akly2, L. A. MIQUELINI2, F. M. Olivera Plata3, A. Granson2; 1CABA/AR, 2Buenos Aires/AR, 3Ciudad Autonoma de Buenos Aires/AR
DOI:
10.26044/ecr2019/C-3110
Background
The structures that run through and surround jugular foramen determine a group of pathologies that requires delicate management.
[1]
It is located in the posterior fossa,
between the occipital bone and petrous pyramid of the temporal bone.
Presents an anteromedial portion (pars nervosa) and a posterolateral portion (pars vascularis) partially separated by the jugular spine,
sometimes it can be completely separated with a fibrous septum.
The pars nervosa contains the IX cranial nerve and the inferior petrosal sinus.
The pars vascularis contains the jugular vein,
X and XI cranial nerves.
Above the jugular foramen there is a very important anatomical structure,
the internal auditory canal,
with the cochlea,
semicircular canals and endolymphatic sac.
Through it runs branches of VII and VIII cranial nerves( Fig. 1 ). [1,
2,
3,
4]
Lesions in jugular foramen can be infectious,
vascular,
and tumoral.
The last ones (tumoral) are the most frequent and paraganglioma represents 60-80% (Table 1) [5]
Table 1: Classification of jugular foramen lesions in this review.
[2,3,4,5]
|
Vascular
|
|
|
Infectious
|
|
Tumoral
|
- Intrinsic
|
- Extrinsic
|
|
|
|
|
|
|