Recall the anatomy of the posterior fossa. 2.
Narrow the differential diagnosis of posterior fossa tumors based on demographics and imaging findings. 3.
Review imaging characteristics of the most common posterior fossa tumors.
A brain tumor is a devastating event with wide range of consequences.
Posterior fossa tumors,
have serious implications due to their critical location e.g.
brain stem compression,
herniation..etc. Without an appropriate imaging based differential diagnosis,
histopathology stands clueless towards most brain tumors.
The added value of neuro-imaging to surgical planning of these tumors is substantial as well. In our practice,
we depend on tumor location,
patient demographics and...
Findings and procedure details
*Anatomy: The Posterior cranial fossa is the most posterior part of the skull.
It is bounded by the posterior surface of the petrous temporal bone anteriorly,
the occipital bone posteriorly and squamous & mastoid temporal bones laterally.
It houses the infra-tentorial brain which is composed of the brain stem and cerebellum (Fig.
1). *Differential diagnosis of a posterior cranial fossa tumor: The posterior fossa can be roughly divided into threemain locations; the cerebellum,
The value of having a proper list of differential diagnosis to a posterior fossa tumor is substantial guiding the clinical decision and avoiding any unnecessary interventions. Using tumor location,
patient demographics & tumor imaging characteristics is an effective way of approaching such lesions as we demonstrated in our poster.
Abdelhady; Radiology Residency Program,
Medical Imaging Service,
Hamad General Hospital,
Qatar. It would give us great pleasure to receive your valuable feedback,
please e-mail: email@example.com
"Imaging of primary posterior fossa brain tumors in children." Journal of the American Osteopathic College of Radiology 2.3 (2013): 2-12. 2.Quattrocchi,
"Magnetic resonance imaging differential diagnosis of brainstem lesions in children." World journal of radiology 8.1 (2016): 1. 3.Pamir,
"Tumors of the Fourth Ventricle and Cerebellum in Adults." Practical Handbook of Neurosurgery .