Items tagged “posterior fossa”
16 results found
Article
Pilocytic astrocytoma
Pilocytic astrocytomas, also known as juvenile pilocytic astrocytomas, are circumscribed astrocytic gliomas that typically occur in young patients. The majority of sporadic pilocytic astrocytomas arise from the cerebellum, whereas in the setting of neurofibromatosis type 1 (NF1), they often invo...
Case
Chiari I malformation
Published
28 May 2008
62% complete
MRI
Article
Medulloblastoma
Medulloblastomas are the most common malignant brain tumors of childhood, most often presenting as midline masses in the roof of the 4th ventricle with associated mass-effect and hydrocephalus. Treatment typically consists of surgical resection, radiation therapy, and chemotherapy, with the prog...
Case
Medulloblastoma
Published
23 Dec 2009
70% complete
CT
MRI
Case
Arachnoid cyst - cerebellopontine angle
Published
18 Jan 2010
53% complete
CT
Case
Medulloblastoma
Published
22 Apr 2010
48% complete
CT
Case
Medulloblastoma
Published
08 Aug 2010
87% complete
MRI
CT
Case
Ependymoma (hemorrhagic)
Published
21 Jul 2011
95% complete
CT
Case
Hemangioblastoma
Published
25 Sep 2011
98% complete
Pathology
MRI
Case
Posterior fossa atypical meningioma
Published
27 Sep 2011
98% complete
MRI
Case
Brainstem glioma
Published
20 Feb 2013
98% complete
MRI
Case
Supravermian arachnoid cyst
Published
30 May 2014
86% complete
MRI
Case
Posterior fossa hemangioblastoma
Published
26 Oct 2015
77% complete
MRI
Article
Tegmentovermian angle
The tegmentovermian angle is an important measurable parameter in the assessment of posterior fossa abnormalities in the fetus. The angle is constructed on midsagittal images of the fetal brain, ideally on MRI.
The angle is formed by the intersection of the following two lines 1:
line 1: along...
Case
Thoracic neuroblastoma
Published
22 Apr 2020
95% complete
CT
X-ray
Nuclear medicine
Article
Posterior meningeal artery
The posterior meningeal artery (PMA) is the largest artery supplying the dura mater of the posterior cranial fossa ref.
Gross anatomy
Origin and course
The origin of the posterior meningeal artery is quite variable 1,2. It most commonly arises from the V3 segment and occasionally from the V4 ...
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