presentation2.pptx. posterior fossa tumour

Imaging of posterior fossa (Infra-tentorial) tumour

By Dr/ ABD ALLAH NAZEER. MD.

POSTERIOR FOSSA INTRA-VENTRICULAR TUMOURS.

1- Medulloblastoma.2- Ependymoma 3- Choroid plexus papilloma.

CT and MRI of medulloblastoma.

CT and MRI of medulloblastoma

choroid plexus papilloma (CPP) at the 4th and 3rd ventricles (Ct and MRI images

choroid plexus papilloma, MRI images

Brain Stem Lesions.

Glioma.Ganglioganglioma.Astrocytoma.

Mid brain glioma

Ganglioglioma of the Brainstem, extending to the cerebellar vemis.

Ganglioglioma of the Brainstem, extending to the cervical cord.

Brain stem cystic pilocytic astrocytoma.

Tectum and cerebellum.

Pilocystic astrocytoma.Medulloblastoma.Hemangioblastoma.Tectal glioma.

Tectal plate Glioma.

Hemangioblastoma of the central nervous system is a benign tumor (WHO grade I) that is typically cystic and can occur throughout the central nervous system. It is a tumor composed of hemangioblasts, a type of stem cell that normally give rise to blood vessels or blood cells. Its name breaks down to Greek roots as follows: Haema (blood), angeion (vessel), blastos (embryonic), oma (tumor). LocationsPredominant locations include the cerebellum and spinal cord. CausesHemangioblastomas can occur "sporadically", or as a component of the von Hippel-Lindau disease (VHL).

Hemangioblastoma of the left cerebellum.

Hemangioblastomas in von Hippel-Lindau Disease

Hemangioblastoma, extending to the upper cervical region

Juvenile pilocytic astrocytoma (JPA).

Pilocytic Cerebellar Astrocytoma

Pilocytic astrocytoma

Acoustic Neuroma MRI Findings.

Epidermoid

Vertebrobasilar Dolichoectasia.

petrous apex cholesterol granuloma

DWI

Metastasis from cancer breast.

Metastasis from bronchogenic carcinoma.

Metastasis from renal carcinoma.

Posterior fossa cerebellar metastasis in adult.

Thank You