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Odontogenic myxoma : ウィキペディア英語版 | Odontogenic myxoma
The odontogenic myxoma is an uncommon benign odontogenic tumor arising from embryonic connective tissue associated with tooth formation.〔Sapp, J. Philip., Lewis R. Eversole, and George P. Wysocki. Contemporary Oral and Maxillofacial Pathology. 2nd ed. St. Louis, MO: Mosby, 2002. 152-53.〕 As a myxoma, this tumor consists mainly of spindle shaped cells and scattered collagen fibers distributed through a loose, mucoid material.〔Cawson, R. A., and E. W. Odell. Cawson's Essentials of Oral Pathology and Oral Medicine. 8th ed. Edinburgh: Churchill Livingstone, 2008. 145-46.〕 ==Clinical Presentation== Odontogenic myxomas have been found in patients ranging in age between 10 and 50 years, however, they are most commonly diagnosed in young adults (specifically between 25 and 35 years of age).〔Wood, Norman K., Paul W. Goaz, and Norman K. Wood. Differential Diagnosis of Oral and Maxillofacial Lesions. 5th ed. St. Louis: Mosby, 1997. 342-43.〕〔McDonald, Ralph E., David R. Avery, and Jeffrey A. Dean. Dentistry for the Child and Adolescent. 8th ed. St. Louis, MO: Mosby, 2004. 163-64.〕 The mandible is more likely to be affected than the maxilla. The region between the molar and premolar is the site of most common occurrence for multilocular lesions〔 while the anterior portion of the mouth favors a smaller, unilocular variety.〔 Patients afflicted with an odontogenic myxoma generally notice a painless, slowly enlarging expansion of the jaw with possible tooth loosening or displacement.〔 As the tumor expands, it frequently infiltrates adjacent structures. Maxillary lesions frequently enter the sinuses while mandibular tumors often extend into the ramus.〔
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