Cerebellar bridge angle
The cerebellar bridge angle ( Angulus pontocerebellaris ) is a niche-like depression on each side of the posterior brain base, which is delimited by the cerebellar tonsils and the caudal bridge edge or the elongated marrow of the brain stem.
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In the cerebellopontine angle , the central parts of several cranial nerves and central blood vessels run in a narrow space at the base of the brain and in the posterior fossa cranii posterior near the petrous pyramid . In particular, this area of VII through them. ( Facial nerve ) and VIII. Cranial nerve ( vestibulocochlear nerve ), which converge in the cerebellum bridge angle, as well as the front and rear lower cerebellar artery ( anterior inferior cerebellar artery or A. inf. Posterior cerebelli ) , as well as venous blood conductors ( sinus petrosi ).
Pathological processes in the cerebellopontine angle often lead to complex symptoms , which can include functional failure of the cranial nerves (mostly VII. And VIII.) And the cerebellum, as well as signs of increased intracranial pressure . Common causes for this are masses, usually an acoustic neuroma , more rarely other tumors , local inflammatory processes or altered blood vessels .
Web links
- Photographic image of the cerebellopontine angle in situ
- Patient information on foci of disease in the cerebellopontine angle and posterior fossa with images
Individual evidence
- ↑ cerebellopontine angle. Roche Lexicon Medicine, 5th edition, Urban & Fischer 2003
- ^ Cerebellopontine angle and posterior fossa . In: Neurosurgical University Clinic Freiburg . January 26, 2007. Archived from the original on July 20, 2006. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved January 27, 2007.
- ↑ B. Holst et al .: Differential diagnosis of masses in the cerebellopontine angle. Radiologist. 2004 Nov; 44 (11), pp. 1113–1136, PMID 15526182 ( German summary ( memento of the original from October 2, 2007 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. )
- ↑ a b J. Maurer: Vascular causes of the "cerebellopontine angle syndrome"? ENT. 2000 Feb; 48 (2), pp. 142-146, PMID 10663063 . doi : 10.1007 / s001060050022 .
- ↑ Symptoms of the cerebellopontine angle. In: Roche Lexicon Medicine . 5th ed. Urban & Fischer, 2003