A rare genetic defect that can cause meningiomas to develop. A meningioma is a tumor of the meninges which is a membrane that encloses the brain and spinal cord The genetic defect occurs on chromosome 22. The tumor is usually slow-growing and benign.


* Headache * Progressive weakness * Seizures * Mental changes * Drowsiness * Listlessness * Dullness * Personality changes * Aphasia * Lack of sense of smell * Double vision * Incontinence * Progressive weakness * Incontinence * Astereognosis * Increased intracranial pressure * Sensory changes * Movement symptoms * Back pain * Limb pain * Bulging eyes * Dizziness * Walking problems * Facial numbness


The signs and symptom information on this page attempts to provide a list of some possible signs and symptoms of MN1. This medical information about signs and symptoms for MN1 has been gathered from various sources, may not be fully accurate, and may not be the full list of MN1 signs or MN1 symptoms. Furthermore, signs and symptoms of MN1 may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed MN1 symptoms.