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Cerebral and cerebellar tumours

Cerebral and cerebellar tumours - Motor dysfunction...

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Cerebral and cerebellar tumours A brain tumour is a solid intracranial neoplasm. It can be primary in nature (originating from the brain tissues) or secondary (a metastasis from a primary cancer elsewhere in the body) Symptoms The brain is protected by the skull, a bony rigid box. The rigid nature of the skull means that extra growths within the skull exert a pressure effect or mass effect on adjacent structures within the brain. As such brain tumours in different regions of the brain may produce subtly different symptoms. Symptoms of solid neoplasms of the brain (primary brain tumours and secondary tumours alike) can be divided in 3 main categories:- Consequences of Raised Intracranial Pressure o Headache o Nausea and Vomiting o Altered state of consciousness o Anisocoria (pupil dilation on affected side) o Papillodema Focal Neurological Dysfunction o Frontal Lobe Signs
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Unformatted text preview: Motor dysfunction Unsteadiness in walking Inability to express oneself verbally (Broca’s aphasia) Personality changes (disinhibition, inappropriate jocularity, rage without provocation, loss of initiative or apathy) o Parietal Lobe Signs Sensory dysfunction Sensory and visual neglect loss of ability to read, write or calculate (dyslexia, dysgraphia, dyscalculia) o Temporal Lobe Signs Cortical deafness Auditory hallucinations Inability to comprehend language (Wernicke’s aphasia) Amnesia Temporal Lobe Epilepsy o Occipital Lobe Signs Cortical blindness Homonymous hemianopsia Visual agnosia Visual hallucinations o Cerebellar Signs Ataxia Intention tremor Dysdiadochokinesis Nystagmus • Irritation o Fatigue o Weariness o Absence o Tremors...
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Cerebral and cerebellar tumours - Motor dysfunction...

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