Neuropath of Tumors II Flashcards
CNS tumors make up __% of tumors in children under 15
20
Bimodal incidence occurs under the age of _ and again at the age of __-___
5; 45-70
Gliomas and Embryonal tumors occur in ___, while ____ occur in _____
males; meningiomas; females
girls are a headache
Tubular Sclerosis increases incidence of ___
subependymal giant cell astrocytoma
Gurlin and Torcot syndrome increase incidence of ____
medulloblastoma
This is the only environmental factor clearly associated with increased risk of brain tumor
Ionizing Radiation
Primary CNS lymphomas are associated with
Congenital or acquired immunodeficiencies
The most likely tumor to arise from ionizing radiation is
Meningioma
Epilepsy occurs most commonly with
astrocytomas or oligodendrogliomas
Sudden onset of epilepsy in an adult indicates what?
CNS neoplasm
Epileptogentic areas are in the ____ ___ or the _____ lobe
motor cortex; temporal
4 major symptoms of CNS tumors
Seizures, focal neurological deficits, mental status change, obstructive hydrocephalus
Obstructive hydrocephalus usually occurs with a 3rd ventricle obstruction via a ______ tumor, a 4th ventricle obstruction via a _______, or a foramen of Monro obstruction via a ______
pineal gland; medulloblastoma; subependymal giant cell astrocytoma
Glial neoplasms in the amygdala and the hippocampus mimic
Schizophrenia
Frontal lobe tumors cause
Deep apathy and depression