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- Publisher
- American Medical Association
- Copyright
- Copyright © 1969 American Medical Association. All Rights Reserved.
- ISSN
- 0003-9977
- DOI
- 10.1001/archotol.1969.00770020254008
- Publisher site
- See Article on Publisher Site
Abstract
Abstract Anatomical Considerations The CRANIAL and spinal nerve roots as they emerge from the central nervous system (CNS) do not immediately assume the architecture of a peripheral nerve. Their morphological structure first resembles that of a fiber bundle within the brain or spinal chord with abundant neuroglial supporting elements: astrocytes, oligodendrocytes, and microglia.1 This proximal neuroglial portion of the nerve root ends with the penetration of the nerve through the pia. Upon penetrating the pia the neuroglia is abandoned. The individual nerve fibers pass through a lamina cribrosa composed of reticulin, beyond which each fiber is contained within its ensheathing tube of reticulin and Schwann cell elements. Schwann cells sheath the axons from here to their ends.The distance from the neuraxis at which the nerve penetrates the pia varies from root to root. A sensory-nerve root generally has a longer neuroglial portion than a motor-nerve root. In the facial References 1. Tarlov, I.M.: Structure of Nerve Root; Differentiation of Sensory From Motor Roots; Observation on Identification of Function on Roots of Mixed Cranial Nerves , Arch Neurol 37:1338-1355, 1937.Crossref 2. Henschen, F.: Die Tumoren des Lateralrecessus: Eine besondere Form der Kleinhirnbrückenwinkeltumoren , Arch Psychiatr 185:640-656, 1950.Crossref 3. Skinner, H.A.: Origin of Acoustic Nerve Tumors , Brit J Surg 16:440-463 ( (Jan) ) 1929.Crossref 4. Henschen, F.: " Die Tumoren des Nervus acusticus ," in Lubarsch, O., and Henke, F. (eds.): Handbuch der Speziellen Pathologie, Anatomie und Histologie , Berlin: Springer Verlag, 1955, vol 13, (pt 3) , pp 845-865. 5. Gonzáles-Revilla, A.: Neurinomas of the Cerebellopontine Recess; Clinical Study of 160 Cases Including Operative Mortality and End Results , Bull Hopkins Hosp 80:254-296 ( (May) ) 1947. 6. Walshe, F.M.R.: Intracranial Tumors: A Critical Review , Quart J Med 24:587-640 ( (July) ) 1931.Crossref 7. Cushing, H.: Intracranial Tumors , Springfield, Ill: Charles C Thomas, Publisher, 1935. 8. Marburg, O.: " Die Tumoren im Bereiche des Cochlear-Vestibularissystems und Kleinhirns ," in Handbuch der Neurologie des Ohres , Wien, vol 3, pp 1-166, 1926. 9. Olivecrona, H.: Acoustic Tumors , J Neurol 3:141-146 ( (April) ) 1940. 10. Zülch, K.J.: Brain Tumors: Their Biology and Pathology , New York: Springer, 1957. 11. Adelstein, L.J., and Anderson, F.M.: Tumor of the Acoustic Nerve Within the Petrous Bone: Operative Removal , Arch Neurol 51:268-270 ( (March) ) 1944Crossref 12. Givré, A., and Olivercrona, H.: Surgical Experiences With Acoustic Tumors , J Neurosurg 6:396-407, 1949Crossref 13. Olivercrona, H.: Analysis of Results of Complete and Partial Removal of Acoustic Neurinomas , J Neurol Neurosurg Paychiat 13:271-272, 1950.Crossref 14. Hardy, M., and Crowe, S.J.: Early Asymptomatic Acoustic Tumors: Report of Six Cases , Arch Surg 32:292-301 ( (Feb) ) 1936.Crossref 15. Antoni, N.R.E.: Über Rückenmarkstumoren und Neurofibrome , Wiesbaden, J. F. Bergmann, 1920. 16. Russel, D.S., and Rubinstein, L.J.: Pathology of Tumors of the Nervous System , London: Edward Arnold, 1960. 17. Henschen, F.: Zur Histologie und Pathogenese der Kleinhirnbrückenwinkeltumoren , Arch Psychiatr Nervenkrankh 56:20-122, 1916.Crossref 18. Imentié, J.: Les tumeurs de l'angle ponto-cérébelleux, thesis, Paris, 1911. 19. Murray, M.R.: Comparative Data on Tissue Culture of Acoustic Neurilemmoma and Meningioma , J Neuropath 1:123-124, 1942. 20. Stout, A.P.: Tumors of the Peripheral Nervous System, Armed Forces Institute of Pathology , Atlas of Tumor Pathology II, 6, 1949. 21. Nager, G.T.: Meningiomas Involving the Temporal Bone: Clinical and Pathological Aspects , Springfield, Ill: Charles C Thomas, Publishers, 1964. 22. Castellano, F., and Ruggiero, G.: Meningiomas of the Posterior Fossa , Acta Radiolog , (suppl 104) , Stockholm, 1953. 23. Holle, G.: Ein mannsfaustgrosses, klinisch unerkanntes Hirncholesteatom , Frankf Path 61:322-338, 1950 24. Hug, O.: Krebsbildung aus einem pialen Epidermoid , Virchow Arch 308:679-689, 1942Crossref 25. Henkel, H.G.: Besondere Formen bösartiger Erkrankungen der weichen Hirnhäute , Stuttgart: Piscator Verlag, 1952. 26. Nager, G.T.: Gliomas Involving the Temporal Bone: Clinical and Pathological Aspects , Laryngoscope 77 ( (April) ) 1967. 27. Kreiner, L.: Die Hirn-und Rückenmarkslipome , Virchow Arch 295:107-142, 1935.Crossref 28. Nager, G.T.: Association of Bilateral VIIIth Nerve Tumors With Meningiomas in von Recklinghausen's Disease , Laryngoscope 74:1220-1261 ( (Sept) ) 1964.Crossref
Journal
Archives of Otolaryngology – American Medical Association
Published: Feb 1, 1969
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