Neurofibromatosis

James Walker,Jr.
May 26, 2011
HSA 220

NEUROFIBROMATOSIS

The neurofibromatosis are agenttic disorders that ready tumors to grow in the nervous system. The tumors begin in the bread and butter cells that makes up the nerves and the myelin sheath the thin tissue layer that envelops and protects the nerves. These disorders cause tumors to grow on nerves and produce other ab practiceities such as skin changes and dress up deformities. Although many touch on persons inherit the disorder, between 30 and 50 percent of raw cases arise spontaneously through mutation (change) in an psyches genes. Once this change has taken place, the mutant gene can be passed on to succeeding generations. Scientist have assort the disorders as neurofibromatosis persona 1 (NF1), neurofibromatosis type 2 (NF2), and schwannomatosis, a type that was once considered to be a variation of NF2. NF1 is the more common type of the neurofibomatoses. In analyse NF1, a physician looks for changes in skin appearance, tumors, or bone abnormalities, and or a parent, sibling, or child is 10 geezerhood old, may include light brown spots on the skin, two or more growths on the iris of the eye, a tumor on optic nerve, a larger than normal head circumference, and abnormal development of the spine, a skull bone, or the tibia.



NF2 is less(prenominal) common and is characterized by slow growing tumors on the one-eighth cranial nerves. The tumors cause pressure damage to neighboring nerves. To examine whether an individual has NF2, a physician looks for eighth nerve tumors, cataracts at an early age or changes in the retina that may mend vision, other nervous system tumors and similar signs and symptoms in a parent, sibling, or child. The distinctive feature of schwannomatosis is the development of multiple schwannomas (tumors do up of certain cells) everywhere in the body barely on the vestibular branch of the 8th cranial nerve. The prevailing symptom is pain, weakness in the fingers and toes.

Surgery is often recommended to...If you urgency to get a full essay, order it on our website: Ordercustompaper.com



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