Neurofibromatosis Type I: Difference between revisions
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== Definition/Description == | == Definition/Description == | ||
Neurofibromatosis Type 1 (NF1) is an autosomal dominant disorder on the long arm of chromosome 17, characterized by benign tumor growth on nerve sheathes called neurofibromas and cutaneous spotting called café-au-lait macules. The role of the mutated, naturally occurring protein neurofibromin is not fully understood but does appear to play some role in regulating Ras proteins which promote cell division and growth.<ref name="Julian" /> | Neurofibromatosis Type 1 (NF1) is an autosomal dominant disorder on the long arm of chromosome 17, characterized by benign tumor growth on nerve sheathes called neurofibromas and cutaneous spotting called café-au-lait macules. The role of the mutated, naturally occurring protein neurofibromin is not fully understood but does appear to play some role in regulating Ras proteins which promote cell division and growth.<ref name="Julian" /><ref name="Genetics">Genetics Home Reference. Neurofibromatosis type 1. Available at: http://ghr.nlm.nih.gov/condition/neurofibromatosis-type-1. Accessed March 4, 2014].</ref> | ||
== Prevalence == | == Prevalence == | ||
Revision as of 16:03, 4 March 2014
Original Editors -Nick Pucillo & Cody Russell from Bellarmine University's Pathophysiology of Complex Patient Problems project.
Top Contributors - Nicholas Pucillo, Cody Russell, Lucinda hampton, Elaine Lonnemann, WikiSysop, Wendy Walker, Kim Jackson and Shaimaa Eldib
Definition/Description[edit | edit source]
Neurofibromatosis Type 1 (NF1) is an autosomal dominant disorder on the long arm of chromosome 17, characterized by benign tumor growth on nerve sheathes called neurofibromas and cutaneous spotting called café-au-lait macules. The role of the mutated, naturally occurring protein neurofibromin is not fully understood but does appear to play some role in regulating Ras proteins which promote cell division and growth.[1][2]
Prevalence[edit | edit source]
Neruofibromatosis type 1 affects approximately 1 in 3,000 peolple worldwide. Neruofibromatosis occurs equally between sexes and races.[3]
Characteristics/Clinical Presentation[edit | edit source]
Neurofibromatosis type 1 has dermal, ocular, neoplastic, neurologic, cardiovascular, and orthopaedic manifestations. These various manifestations are what calls for aggressive treatment from a multidisciplinary team.
Associated Co-morbidities[edit | edit source]
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Medications[edit | edit source]
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Diagnostic Tests/Lab Tests/Lab Values[edit | edit source]
Neruofibramatosis type 1 is diagnosed through through clinical assessment including patient history and physical examination. The National Institutes of Health have developed a diagnostic criteria for NF1 based upon common clinical features. The diagnosis is made by an individual having 2 or more of the following features:
- Six or more cafe au laite macules > 5 mm in prepubertal individuals and > 15 mm in diameter in adults.
- Two or more neruorfibromas.
- Freckling in the axillary or inguinal regions.
- Optic glioma visual pathways tumors most often presenting as grade I pilocytic astrocytomas.
- Two or more Lisch Nodules
- Abnormal development of the spine (scoliosis), the sphenoid bone, or the tibia.
- A first degree relative with NF1
Early diagnosis is challenging because of the variable characteristics of NF1.[1] Diagnosis my be delayed due to the different ages that features can emerge. [3]
Etiology/Causes[edit | edit source]
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Systemic Involvement[edit | edit source]
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Medical Management (current best evidence)[edit | edit source]
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Physical Therapy Management (current best evidence)[edit | edit source]
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Alternative/Holistic Management (current best evidence)[edit | edit source]
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Differential Diagnosis[edit | edit source]
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Case Reports/ Case Studies[edit | edit source]
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Resources
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Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
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- ↑ 1.0 1.1 Julian N, Edwards NE, DeCrane S, Hingtgen CM. Neurofibromatosis 1: Diagnosis and Management. The Journal for Nurse Practitioners. 2014;10(1):30-35.
- ↑ Genetics Home Reference. Neurofibromatosis type 1. Available at: http://ghr.nlm.nih.gov/condition/neurofibromatosis-type-1. Accessed March 4, 2014].
- ↑ 3.0 3.1 Feldman DS, Jordan C, Fonseca L. Orthopaedic manifestations of neurofibromatosis type 1. J Am Acad Orthop Surg. 2010;18(6):346-57.
