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A subependymoma is a type of brain tumor; specifically, it is a rare form of ependymal tumor. [1] They are usually in middle aged people. Earlier, they were called ...
Subependymal giant cell astrocytoma (SEGA, SGCA, or SGCT) is a low-grade astrocytic brain tumor (astrocytoma) that arises within the ventricles of the brain. [1] It is most commonly associated with tuberous sclerosis complex (TSC).
MRI of a child experiencing seizures.There are small foci of grey matter heterotopia in the corpus callosum, deep to the dysplastic cortex. (double arrows) Gray matter heterotopia is a neurological disorder caused by gray matter being located in an atypical location in the brain.
Ependymoblastomas, which occur in infants and children younger than 5 years of age, may spread through the cerebrospinal fluid and usually require radiation therapy. The subependymoma, a variant of the ependymoma, is apt to arise in the fourth ventricle but may occur in the septum pellucidum and the cervical spinal cord. It usually affects ...
Choroid plexus papilloma differentials include the following: [28] Meningioma, Chordoid glioma, Rosette-forming glioneuronal tumor, Central nervous system lymphoma Metastasis, Central neurocytoma, Intraventricular tumors such as papillary ependymoma, Subependymoma, Subependymal giant cell tumor, Choroid plexus tumors, Medulloblastoma.
Neurofibromatosis type II (also known as MISME syndrome – multiple inherited schwannomas, meningiomas, and ependymomas) is a genetic condition that may be inherited or may arise spontaneously, and causes benign tumors of the brain, spinal cord, and peripheral nerves.
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"The distinguishing mark of the pupa is again in the frontal horn, which is straight as in agamemnon, but directed forward instead of being almost erect. Its colour is normally green, but varies with that of the object to which it is attached." (Davidson and Aitken quoted in Bingham, 1907)