Osteochondroma of the sigmoide notch: a case report of an unusual location
Keywords:Osteochondroma, Sigmoid notch, Facial asymmetry, Restricted mouth opening
Objective: This article presents an interesting case of osteochondroma of the the sigmoid notch.
Case Report: A 15-year-old female with severe facial asymmetry, malocclusion, open bite and extreme limitation of mouth opening. Panoramic radiography showed an exophytic radiopaque mass arising from the sigmoid notch on the right side. CT images revealed bony proliferation with benign signs causing damage to the articular eminence, condilar morphology and periarticular soft tissue calcifications. Magnetic Resonance confirmed the findings of the CT and revealed modifications on disc morphology. A surgical resection was performed.
Conclusion: The OC located at the sigmoid notch presented is probably the rarest site seen in the existing literature.
Ortakoglu K, Akcam T, Sencimen M, Karakoc O, Ozyigit A, Bengi O. Osteochondroma of the mandible causing severe facial asymmetry: A case report. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007; 103:21-8. https://doi.org/10.1016/j.tripleo.2006.11.035
White SC, Pharoah MJ. Oral radiology: principles and interpretation. 6th ed. Mosby; 2009:500-1.
Kumar V. Large osteochondroma of the mandibular condyle treated by condylectomy using a transzygomatic approach. Int. J. Oral Maxillofac Surg. 2009; 39:188-91. https://doi.org/10.1016/j.ijom.2009.12.004
Ramos-Murguialday M, Morey-Mas MA, Janeiro-Barrera S, García- Sánchez A, Molina-Barraguer I, Iriarte-Ortabe JI. Osteochondroma of the temporomandibular joint: report of 2 cases emphasizing the importance of personalizing the surgical treatment. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012; 113:e41-e47. https://doi.org/10.1016/j.tripleo.2011.07.007
Etöz O, Alkan A, Yıkılmaz A. Osteochondroma of the mandibular coronoid process: a rare cause of limited mouth opening. Br J Oral Maxillofac Surg. 2009; 47:409-11. https://doi.org/10.1016/j.bjoms.2008.10.021
D'Ambrosio N, Kellman R, Karimi S. Osteochondroma of the coronoid process (Jacob's disease): an unusual cause of restricted jaw motion. Am J Otolaryngol–Head Neck Med Surg. 2011; 32:52-4. https://doi. org/10.1016/j.amjoto.2009.09.008
Ongole R, Pillai RS, Ahsan AK, Pai KM. Osteochondroma of the mandibular condyle. Saudi Med J. 2003; 24 (2): 213-6.
Zhang J, Wang H, Li X, Li W, Wu H, Miao J, X Yuan. Osteochondromas of the mandibular condyle: variance in radiographic appearance on panoramic radiographs. Dentomaxillofac Radiol. 2008; 37:154-60. https://doi.org/10.1259/dmfr/19168643
González-Otero S, Navarro-Cuéllar C, Escrig-de Teigeiro M, Fernández- Alba-Luengo J, Navarro-Vila C. Osteochondroma of the mandibular condyle: Resection and reconstruction using vertical sliding osteotomy of the mandibular ramus. Med Oral Patol Oral Cir Bucal 2009; 14; 4:194-7.
Li H, Hu J, Luo E, Zhu S, Li J. Treatment of Osteochondroma in the mandibular condyle and secondary dentofacial deformities using surgery combined with orthodontics in adults. J Oral Maxillofac Surg 2014; 72:2295-317. https://doi.org/10.1016/j.joms.2014.03.021
Peroz, H. J. Scholman, B. Hell: Osteochondroma of the mandibular condyle: a case report. Int J Oral Maxillofac Surg 2002; 31:455–6. https://doi.org/10.1054/ijom.2002.0234
Ribas Mde O1, Martins WD, de Sousa MH, Zanferrari FL, Lanzoni T. Osteochondroma of the mandibular condyle: literature review and report of a case. J Contemp Dent Pract 2007:8(4):52-9.
Loftus MJ, Bennett JA, Fantasia JE. Osteochondroma of the mandibular condyle. Report of three cases and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1986; 61:221-6. https://doi. org/10.1016/0030-4220(86)90364-6
Wolford LM, Movahed R, Dhameja A, Allen WR. Low condylectomy and orthognathic surgery to treat mandibular condylar osteochondroma: A retrospective review of 37 cases. J Oral Maxillofac Surg. 2014; 72:1704-
Meng Q, Chen S, Long X, et al: The clinical and radiographic characteristics of condylar osteochondroma. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012;114:e66. https://doi.org/10.1016/j.oooo.2012.01.016
Singhal A, Venkatpathy R, Singhal P. Condylar osteochondroma: Report of a case with literature review. SRM J Res Dent Sci. 2013; 4:82-5. https://doi.org/10.4103/0976-433X.120185
Roychoudhury A, Bhatt K, Yadav R, Bhutia O, Roychoudhury S. Review of osteochondroma of mandibular condyle and a report of case series. J Oral Maxillofac Surg. 2011; 69:2815-23. https://doi.org/10.1016/j. joms.2010.10.016
Utumi ER, Pedron IG, Perrella A, et al: Osteochondroma of the temporomandibular joint: A case report. Braz Dent J. 2010; 21:253-8. https://doi.org/10.1590/S0103-64402010000300014
Holmund AB, Gynther GW, Reinholt FP. Surgical treatment of osteochondroma of the mandibular condyle in the adult. A 5-year followup. Int J Oral Maxillofac Surg. 2004; 33:549-53. https://doi.org/10.1016/j.ijom.2004.01.006
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