Imaging Analysis of Ameloblastoma of Mandible - 5 Cases
Keywords:Ameloblastoma, mandible, CT, bicortical expansion
Ameloblastoma is the most common odontogenic tumor of the jaws. It is seen in all age groups but the lesion is most commonly diagnosed in the third and fourth decades. It is often asymptomatic, presents as a slowly enlarging swelling or an incidental finding on a radiograph. Radiologically, usually appears as multilocular radiolucency with well defined and corticated borders but can also presents as unilocular radiolucency. Other radiological findings commonly associated are tooth displacement, and root resorption. Computed tomography (CT) shows cortical expansion and in some cases even cortical perforation. Ameloblastoma is a locally destructive tumor with a propensity for recurrence if not entirely excised. In this paper, we report 5 cases of ameloblastoma of mandible collected over the period of 8 months with various imaging findings and their analysis using panoramic radiograph under conventional radiography and CT scan under advanced imaging which may further aid in optimal treatment planning and outcome.
Rastogi R, Jain H. Case report: Desmoplastic ameloblastoma. Indian J Radiol Imaging 2008; 18: 53-55. http://dx.doi.org/10.4103/0971-3026.35819
Williams TP. Management of ameloblastoma: a changing perspective. J Oral Maxillofac Surg 1993; 51: 1064-70. http://dx.doi.org/10.1016/S0278-2391(10)80440-9
Ghandhi D, Ayoub AF, Anthony M, MacDonald G, Brocklebank LM, Moos KF. Ameloblastoma: a surgeon’s dilemma. J Oral Maxillofac Surg 2006; 64: 1010-4. http://dx.doi.org/10.1016/j.joms.2006.03.022
Ogunsalu C, Daisley H, Henry K, et al. A new radiological classification for ameloblastoma based on analysis of 19 cases. West Indian Med J 2006; 55: 434-9. http://dx.doi.org/10.1590/S0043-31442006000600013
Philipsen HP, Reichart PA. Classification of odontogenic tumors and allied lesions. Odontogenic tumors and allied lesions Quintessence Pub. Co. Ltd 2004; pp. 21-3.
Torres-Lagares D, Infante-Cossío P, Hernández-Guisado JM, Gutiérrez- Pérez JL. Mandibular ameloblastoma. A review of the literature and presentation of six cases. Med Oral Patol Oral Cir Bucal 2005; 10: 231-8.
Melvor J. The radiological features of ameloblastoma. Clin Radiol 1974; 25: 237-42. http://dx.doi.org/10.1016/S0009-9260(74)80060-7
Zhang Y, Guo W, Wang L, Chen X. Molecular markers of tumor invasiveness in ameloblastoma: an update. Ann Maxillofac Surg 2011; 1: 145-49. http://dx.doi.org/10.4103/2231-0746.92780
Hollows P, Fasanmade A, Hayter JP. Ameloblastoma – a diagnostic problem. Br Dent J 2000; 188(5): 243-4.
Robinson L, Martinez MG. Unicystic ameloblastoma: a prognostically distinct entity. Cancer 1977; 40: 2278-85. http://dx.doi.org/10.1002/1097-0142(197711)40:5<2278::AID-CNCR2820400539>3.0.CO;2-L
Vohra FA, Hussain M, Mudassir MS. Ameloblastomas and Their Management: A Review. J Surg Pak 2009; 14(3): 136-42.
Nakamura N, Higuchi Y, Mitsuyasu T, Sandra F, Ohishi M. Comparison of long-term results between different approaches to ameloblastoma. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002; 93(1): 13-20. http://dx.doi.org/10.1067/moe.2002.119517