cerebral tumour


cerebral tumour
an abnormal multiplication of brain cells. Any tumorous swelling tends to compress or even destroy the healthy brain cells surrounding it and - because of the rigid closed nature of the skull - increases the pressure on the brain tissue. Malignant brain tumours, which are much more common in children than in adults, include medulloblastomas and gliomas; these grow rapidly, spreading through the otherwise normal brain tissue and causing progressive neurological disability. Benign tumours, such as meningiomas, grow slowly and compress the brain tissue. Both benign and malignant tumours commonly cause fits. Benign tumours are often cured by total surgical resection. Malignant tumours may be treated by neurosurgery, chemotherapy, and radiotherapy, but the outcome for most patients remains poor.

The new mediacal dictionary. 2014.

Look at other dictionaries:

  • cerebral tumour — an abnormal multiplication of brain cells. Any tumorous swelling tends to compress or even destroy the healthy brain cells surrounding it and because of the rigid closed nature of the skull increases the pressure on the brain tissue. Malignant… …   Medical dictionary

  • Опухоль Головного Мозга (Cerebral Tumour, Brain Tumour) — аномальное размножение клеток головного мозга. В результате в головном мозге образуется опухоль, которая сдавливает или даже разрушает здоровые мозговые клетки. Вследствие жесткости черепа увеличивается внутричерепное давление. Для… …   Медицинские термины

  • brain tumour — see cerebral tumour …   Medical dictionary

  • brain tumour — see cerebral tumour …   The new mediacal dictionary

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  • Medulloblastoma — A type of virulent brain tumor that occurs most frequently in children. Medulloblastomas originate in residual embryonic nerve cells that begin to proliferate. Treatment is by radiation, but is only rarely successful. * * * A tumor consisting of… …   Medical dictionary

  • medulloblastoma — n. a malignant brain tumour (see cerebral tumour) that occurs during childhood. It is derived from cells that have the apparent potential to mature into neurones and develops in the cerebellum, the part of the brain that is predominantly involved …   The new mediacal dictionary

  • Ependymoma — A type of brain tumor derived from the cells that line the cavities within the ventricles of the brain and the central canal of the spinal cord. Because cerebrospinal fluid (CSF) normally flows through the cerebral ventricles and the central… …   Medical dictionary


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