Accessory Mental Foramen Misdiagnosed as Radiolucent Tumour by Conventional Dental Radiography
Author(s)
Shoko Gamoh,
Yui Mori,
Michiko Nakatsuka,
Hironori Akiyama,
Yumiko Ogawa,
Yasutomo Iwai,
Shosuke Morita,
Kimishige Shimizutani
Affiliation(s)
Department of Oral Radiology, Osaka Dental University, Osaka, Japan. Department of Dentistry, Sumitomo Hospital, Osaka, Japan;Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Japan. Department of Oral Anatomy, Osaka Dental University, Osaka, Japan. First Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Japan.
Department of Oral Radiology, Osaka Dental University, Osaka, Japan. Department of Dentistry, Sumitomo Hospital, Osaka, Japan;Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Japan. Department of Oral Anatomy, Osaka Dental University, Osaka, Japan. First Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Japan.
ABSTRACT
The mental foramen is an important landmark for identifying the mental nerve, and the accessory mental foramen is a rare anatomical variation. This article describes the use of computed tomo- graphy (CT) to detect an accessory mental foramen that was initially misdiagnosed as a radiolu- cent tumour in the right premolar region of a 39-year-old woman by panoramic radiography. The case suggests that preoperative CT should be performed to detect any anatomical variations. This knowledge would help in diagnosis, preoperative planning and prevention of intraoperative nerve or vascular injury.
Cite this paper
Gamoh, S. , Mori, Y. , Nakatsuka, M. , Akiyama, H. , Ogawa, Y. , Iwai, Y. , Morita, S. and Shimizutani, K. (2014) Accessory Mental Foramen Misdiagnosed as Radiolucent Tumour by Conventional Dental Radiography. Open Journal of Radiology, 4, 173-176. doi: 10.4236/ojrad.2014.42022.
Gamoh, S. , Mori, Y. , Nakatsuka, M. , Akiyama, H. , Ogawa, Y. , Iwai, Y. , Morita, S. and Shimizutani, K. (2014) Accessory Mental Foramen Misdiagnosed as Radiolucent Tumour by Conventional Dental Radiography. Open Journal of Radiology, 4, 173-176. doi: 10.4236/ojrad.2014.42022.
References
[1] Haghanifar, S. and Rokouei, M. (2009) Radiographic Evaluation of the Mental Foramen in a Selected Iranian Population. Indian Journal of Dental Research, 20, 150-152.
http://dx.doi.org/10.4103/0970-9290.52886 [2] de Freitas, V., Madeira, M.C., Toledo Filho, J.L. and Chagas, C.F. (1979) Absence of the Mental Foramen in Dry Human Mandibles. Acta Anatomica (Basel), 104, 353-355.
http://dx.doi.org/10.1159/000145083 [3] Kaufman, E., Serman, N.J. and Wang, P.D. (2000) Bilateral Mandibular Accessory Foramina and Canals: A Case Report and Review of the Literature. Dentomaxillofacial Radiology, 29, 170-175.
http://dx.doi.org/10.1038/sj.dmfr.4600526 [4] Toh, H., Kodama, J., Yanagisako, M. and Ohmori, T. (1992) Anatomical Study of the Accessory Mental Foramen and the Distribution of Its Nerve. Okajimas Folia Anatomica Japonica, 69, 85-88.
http://dx.doi.org/10.2535/ofaj1936.69.2-3_85 [5] Igarashi, C., Yamamoto, A., Morita, Y. and Tanaka, M. (2004) Double Mental Foramina of the Mandible on Computed Tomography Images: A Case Report. Oral Radiology, 20, 68-71.
http://dx.doi.org/10.1007/s11282-004-0012-1 [6] Riesenfeld, A. (1956) Multiple Infraorbital, Ethmoidal, and Mental Foramina in the Races of Man. American Journal of Physical Anthropology, 14, 85-100.
http://dx.doi.org/10.1002/ajpa.1330140122 [7] Angelopoulos, C., Thomas, S.L., Hechler, S., Parissis, N. and Hlavacek, M. (2008) Comparison between Digital Panoramic Radiography and Cone-Beam Computed Tomography for the Identification of the Mandibular Canal as Part of Presurgical Dental Implant Assessment. Journal of Oral and Maxillofacial Surgery, 66, 2130-2135.
http://dx.doi.org/10.1016/j.joms.2008.06.021 [8] Katakami, K., Mishima, A., Shiozaki, K., Shimoda, S., Hamada, Y. and Kobayashi, K. (2008) Characteristics of Accessory Mental Foramina Observed on Limited Cone-Beam Computed Tomography Images. Journal of Endodontics, 34, 1441-1445.
http://dx.doi.org/10.1016/j.joen.2008.08.033 [9] Jacobs, R., Mraiwa, N., vanSteenberghe, D., Gijbels, F. and Quirynen, M. (2002) Appearance, Location, Course, and Morphology of the Mandibular Incisive Canal: An Assessment on Spiral CT Scan. Dentomaxillofacial Radiology, 31, 322-327.
http://dx.doi.org/10.1038/sj.dmfr.4600719 [10] Sawyer, D.R., Kiely, M.L. and Pyle, M.A. (1998) The Frequency of Accessory Mental Foramina in Four Ethnic Groups. Archives of Oral Biology, 43, 417-420.
http://dx.doi.org/10.1016/S0003-9969(98)00012-0 [11] Naitoh, M., Yoshida, K., Nakahara, K., Gotoh, K. and Ariji, E. (2011) Demonstration of the Accessory Mental Foramen Using Rotational Panoramic Radiography Compared with Cone-Beam Computed Tomography. Clinical Oral Implants Research, 22, 1415-1419.
http://dx.doi.org/10.1111/j.1600-0501.2010.02116.x [12] Thakur, G., Thomas, S., Thayil, S.C. and Nair, P.P. (2011) Accessory Mental Foramen: A Rare Anatomical Finding. BMJ Case Reports, 2011.
http://dx.doi.org/10.1136/bcr.09.2010.3326 [13] Cagirankaya, L.B. and Kansu, H. (2008) An Accessory Mental Foramen: A Case Report. Journal of Contemporary Dental Practice, 9, 98-104. [14] Kulkarni, S., Kumar, S., Kamath, S. and Thakur, S. (2011) Accidental Identification of Accessory Mental Nerve and Foramen during Implant Surgery. Journal of Indian Society of Periodontology, 15, 70-73.
http://dx.doi.org/10.4103/0972-124X.82270.
[1] Haghanifar, S. and Rokouei, M. (2009) Radiographic Evaluation of the Mental Foramen in a Selected Iranian Population. Indian Journal of Dental Research, 20, 150-152.
http://dx.doi.org/10.4103/0970-9290.52886 [2] de Freitas, V., Madeira, M.C., Toledo Filho, J.L. and Chagas, C.F. (1979) Absence of the Mental Foramen in Dry Human Mandibles. Acta Anatomica (Basel), 104, 353-355.
http://dx.doi.org/10.1159/000145083 [3] Kaufman, E., Serman, N.J. and Wang, P.D. (2000) Bilateral Mandibular Accessory Foramina and Canals: A Case Report and Review of the Literature. Dentomaxillofacial Radiology, 29, 170-175.
http://dx.doi.org/10.1038/sj.dmfr.4600526 [4] Toh, H., Kodama, J., Yanagisako, M. and Ohmori, T. (1992) Anatomical Study of the Accessory Mental Foramen and the Distribution of Its Nerve. Okajimas Folia Anatomica Japonica, 69, 85-88.
http://dx.doi.org/10.2535/ofaj1936.69.2-3_85 [5] Igarashi, C., Yamamoto, A., Morita, Y. and Tanaka, M. (2004) Double Mental Foramina of the Mandible on Computed Tomography Images: A Case Report. Oral Radiology, 20, 68-71.
http://dx.doi.org/10.1007/s11282-004-0012-1 [6] Riesenfeld, A. (1956) Multiple Infraorbital, Ethmoidal, and Mental Foramina in the Races of Man. American Journal of Physical Anthropology, 14, 85-100.
http://dx.doi.org/10.1002/ajpa.1330140122 [7] Angelopoulos, C., Thomas, S.L., Hechler, S., Parissis, N. and Hlavacek, M. (2008) Comparison between Digital Panoramic Radiography and Cone-Beam Computed Tomography for the Identification of the Mandibular Canal as Part of Presurgical Dental Implant Assessment. Journal of Oral and Maxillofacial Surgery, 66, 2130-2135.
http://dx.doi.org/10.1016/j.joms.2008.06.021 [8] Katakami, K., Mishima, A., Shiozaki, K., Shimoda, S., Hamada, Y. and Kobayashi, K. (2008) Characteristics of Accessory Mental Foramina Observed on Limited Cone-Beam Computed Tomography Images. Journal of Endodontics, 34, 1441-1445.
http://dx.doi.org/10.1016/j.joen.2008.08.033 [9] Jacobs, R., Mraiwa, N., vanSteenberghe, D., Gijbels, F. and Quirynen, M. (2002) Appearance, Location, Course, and Morphology of the Mandibular Incisive Canal: An Assessment on Spiral CT Scan. Dentomaxillofacial Radiology, 31, 322-327.
http://dx.doi.org/10.1038/sj.dmfr.4600719 [10] Sawyer, D.R., Kiely, M.L. and Pyle, M.A. (1998) The Frequency of Accessory Mental Foramina in Four Ethnic Groups. Archives of Oral Biology, 43, 417-420.
http://dx.doi.org/10.1016/S0003-9969(98)00012-0 [11] Naitoh, M., Yoshida, K., Nakahara, K., Gotoh, K. and Ariji, E. (2011) Demonstration of the Accessory Mental Foramen Using Rotational Panoramic Radiography Compared with Cone-Beam Computed Tomography. Clinical Oral Implants Research, 22, 1415-1419.
http://dx.doi.org/10.1111/j.1600-0501.2010.02116.x [12] Thakur, G., Thomas, S., Thayil, S.C. and Nair, P.P. (2011) Accessory Mental Foramen: A Rare Anatomical Finding. BMJ Case Reports, 2011.
http://dx.doi.org/10.1136/bcr.09.2010.3326 [13] Cagirankaya, L.B. and Kansu, H. (2008) An Accessory Mental Foramen: A Case Report. Journal of Contemporary Dental Practice, 9, 98-104. [14] Kulkarni, S., Kumar, S., Kamath, S. and Thakur, S. (2011) Accidental Identification of Accessory Mental Nerve and Foramen during Implant Surgery. Journal of Indian Society of Periodontology, 15, 70-73.
http://dx.doi.org/10.4103/0972-124X.82270.