Whitehead Matthew,  Lee Bonmyong

Final Pr. ID: Poster #: EDU-012

The posterior fossa houses the brainstem and cerebellum. These vital and complex parenchymal structures contain many important white matter tracts, nuclei, and neurons responsible for both basic fundamental and higher-level functions. A number of disease processes can interfere with rhombencephalic development, including genetic malformations and disruption such as hypoxia, toxins, infections, trauma, and vascular disorders. Structural changes associated with fetal imaging pathology that deviate from the normal gestational-age specific developmental patterns can define the etiology, improve our understanding of the disease, and help with prognostication. A comprehension of basic embryology and developmental anatomy is necessary to achieve a true understanding of posterior fossa anomalies and normal variants. In this exhibit, we aim to illustrate common and rare anomalies of the brainstem, cerebellum, meninges, and meningeal spaces visible on fetal MRI, presented in a temporal manner based on the embryologic development of the posterior fossa. Read More

Authors:  Whitehead Matthew , Lee Bonmyong

Keywords:  Posterior fossa, cerebellum, brainstem

Scace Candace

Final Pr. ID: Poster #: EDU-077

Brain tumors are the most common solid tumor of childhood and the leading cause of death among all childhood cancers. Because many pediatric brain tumors occur infratentorially, it is important for the radiologist to recognize and distinguish both classic and more rare tumors that can present within this region. The purpose of this presentation is to review the imaging findings associated with the most common posterior fossa tumors in children, discuss their differentiating features, and expand upon this differential by including imaging characteristics of less common, but equally important neoplasms occuring within the posterior fossa. Read More

Authors:  Scace Candace

Keywords:  Infratentorial tumors, Brainstem glioma, Ependymoma, Juvenile pilocytic astrocytoma, Medulloblastoma