Arachnoid Cyst of the Posterior Cranial Fossa: (Left) T1-weighted axial MRI; (Right) T2-weighted axial MRI. Note the large cystic lesion in the posterior fossa. As the cyst contains fluid, it is dark ...

Chiari malformation, an anomaly of the posterior cranial fossa, also known as Arnold–Chiari malformation, was described in autopsies by Hans Chiari, an Austrian pathologist, in 1891. He defined ...

Skull-base CSF leakage from the posterior cranial fossa into the soft tissues of the neck may rarely cause spontaneous intracranial hypotension, but skull-base CSF leaks resulting in CSF ...

Surgeons do this to access a part of the skull called the posterior fossa, which contains structures such as the cerebellum, the brain stem, the fourth ventricle, and cranial nerves. There are ...