Browse > Article
http://dx.doi.org/10.5624/isd.20200253

Imaging features of Stafne bone defects on computed tomography: An assessment of 40 cases  

Morita, Lucas (Department of Stomatology, School of Dentistry, University of Sao Paulo)
Munhoz, Luciana (Department of Stomatology, School of Dentistry, University of Sao Paulo)
Nagai, Aline Yukari (Department of Stomatology, School of Dentistry, University of Sao Paulo)
Hisatomi, Miki (Departament of Oral and Maxillofacial Radiology, Medical School, Okayama University)
Asaumi, Junichi (Departament of Oral and Maxillofacial Radiology, Medical School, Okayama University)
Arita, Emiko Saito (Department of Stomatology, School of Dentistry, University of Sao Paulo)
Publication Information
Imaging Science in Dentistry / v.51, no.1, 2021 , pp. 81-86 More about this Journal
Abstract
Purpose: This study was performed to assess and describe the imaging features of 40 cases of Stafne bone defects (SBDs) on computed tomographic (CT) examinations. Materials and Methods: This study collected data, including age and sex, from 40 patients with SBDs who underwent CT exams. The imaging features of the SBDs were assessed in terms of their location, average size, the relationship of their contour with the cortical plate of the lingual mandible, bone margins, degree of internal density, shape, topographic relationship between the defect and the mandibular edge, the distance from the SBD to the base of the mandible, and the Ariji classification (type I, II, and III). Results: The average age was 57.3 years(range, 28-78 years), and the patients were predominantly male (70%). In all cases (100%), the posterior unilateral lingual SBD variant was observed. Within the Ariji classification, type I was the most common (60%). Among the most frequently observed radiographic characteristics were thick sclerotic bone margin across the entire defect contour, completely hypointense internal content, an oval shape, and continuity with the mandibular base with discontinuity of the mandibular edge. Conclusion: This study showed that posterior SBDs could present with an oval or rounded shape, complete hypodensity, and thick sclerotic margins. Likewise, SBDs could appear almost anywhere, with minor differences from the classic SBD appearance. It is fundamental for dental practitioners to know the imaging features of SBDs, since they are diagnosed primarily based on imaging.
Keywords
Bone Cysts; Radiography, Panoramic; Salivary Glands; Multidetector computed tomography;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Stafne EC. Bone cavities situated near the angle of the mandible. J Am Dent Assoc 1942; 29: 1969-72.   DOI
2 Kaya M, Ugur KS, Dagli E, Kurtaran H, Gunduz M. Stafne bone cavity containing ectopic parotid gland. Braz J Otorhinolaryngol 2018; 84: 669-72.   DOI
3 Minowa K, Inoue N, Sawamura T, Matsuda A, Totsuka Y, Nakamura M. Evaluation of static bone cavities with CT and MRI. Dentomaxillofac Radiol 2003; 32: 2-7.   DOI
4 Taysi M, Ozden C, Cankaya B, Olgac V, Yildirim S. Stafne bone defect in the anterior mandible. Dentomaxillofac Radiol 2014; 43: 20140075.   DOI
5 Hisatomi M, Munhoz L, Asaumi J, Arita ES. Stafne bone defects radiographic features in panoramic radiographs: assessment of 91 cases. Med Oral Patol Oral Cir Bucal 2019; 24: e12-9.
6 Philipsen HP, Takata T, Reichart PA, Sato S, Suei Y. Lingual and buccal mandibular bone depressions: a review based on 583 cases from a world-wide literature survey, including 69 new cases from Japan. Dentomaxillofac Radiol 2002; 31: 281-90.   DOI
7 Choukas NC, Toto PD. Etiology of static bone defects of the mandible. J Oral Surg Anesth Hosp Dent Serv 1960; 18: 16-20.
8 de Courten A, Kuffer R, Samson J, Lombardi T. Anterior lingual mandibular salivary gland defect (Stafne defect) presenting as a residual cyst. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002; 94: 460-4.   DOI
9 Assaf AT, Solaty M, Zrnc TA, Fuhrmann AW, Scheuer H, Heiland M, et al. Prevalence of Stafne's bone cavity - retrospective analysis of 14,005 panoramic views. In Vivo 2014; 28: 1159-64.
10 Sisman Y, Miloglu O, Sekerci AE, Yilmaz AB, Demirtas O, Tokmak TT. Radiographic evaluation on prevalence of Stafne bone defect: a study from two centres in Turkey. Dentomaxillofac Radiol 2012; 41: 152-8.   DOI
11 Chen CY, Ohba T. An analysis of radiological findings of Stafne's idiopathic bone cavity. Dentomaxillofac Radiol 1981; 10: 18-23.   DOI
12 Quesada-Gomez C, Valmaseda-Castellon E, Berini-Aytes L, Gay-Escoda C. Stafne bone cavity: a retrospective study of 11 cases. Med Oral Patol Oral Cir Bucal 2006; 11: E277-80.
13 Oikarinen VJ, Julku M. An orthopantomographic study of developmental mandibular bone defects (Stafne's idiopathic bone cavities). Int J Oral Surg 1974; 3: 71-6.   DOI
14 Hisatomi M, Munhoz L, Asaumi J, Arita ES. Parotid mandibular bone defect: a case report emphasizing imaging features in plain radiographs and magnetic resonance imaging. Imaging Sci Dent 2017; 47: 269-73.   DOI
15 Ozaki H, Ishikawa S, Kitabatake K, Yusa K, Tachibana H, Iino M. A case of simultaneous unilateral anterior and posterior Stafne bone defects. Case Rep Dent 2015; 2015: 983956.
16 Schneider T, Filo K, Locher MC, Gander T, Metzler P, Gratz KW, et al. Stafne bone cavities: systematic algorithm for diagnosis derived from retrospective data over a 5-year period. Br J Oral Maxillofac Surg 2014; 52: 369-74.   DOI
17 Sisman Y, Etoz OA, Mavili E, Sahman H, Tarim Ertas E. Anterior Stafne bone defect mimicking a residual cyst: a case report. Dentomaxillofac Radiol 2010; 39: 124-6.   DOI
18 Ariji E, Fujiwara N, Tabata O, Nakayama E, Kanda S, Shiratsuchi Y, et al. Stafne's bone cavity. Classification based on outline and content determined by computed tomography. Oral Surg Oral Med Oral Pathol 1993; 76: 375-80.   DOI
19 He J, Wang J, Hu Y, Liu W. Diagnosis and management of Stafne bone cavity with emphasis on unusual contents and location. J Dent Sci 2019; 14: 435-9.   DOI
20 Smith MH, Brooks SL, Eldevik OP, Helman JI. Anterior mandibular lingual salivary gland defect: a report of a case diagnosed with cone-beam computed tomography and magnetic resonance imaging. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007; 103: e71-8.   DOI
21 Ozdede M. An unusual case of double stafne bone cavities. Surg Radiol Anat 2020; 42: 543-6.   DOI
22 Lee KC, Yoon AJ, Philipone EM, Peters SM. Stafne bone defect involving the ascending ramus. J Craniofac Surg 2019; 30: e301-3.   DOI
23 Flores Campos PS, Oliveira JA, Dantas JA, de Melo DP, Pena N, Santos LA, et al. Stafne's defect with buccal cortical expansion: a case report. Int J Dent 2010; 2010: 515931.
24 Nishimura S, Osawa K, Tanaka T, Imamura Y, Kokuryo S, Habu M, et al. Multiple mandibular static bone depressions attached to the three major salivary glands. Oral Radiol 2018; 34: 277-80.   DOI
25 Dereci O, Duran S. Intraorally exposed anterior Stafne bone defect: a case report. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 113: e1-3.   DOI
26 Aps JK, Koelmeyer N, Yaqub C. Stafne's bone cyst revisited and renamed: the benign mandibular concavity. Dentomaxillofac Radiol 2020; 49: 20190475.   DOI
27 Probst FA, Probst M, Maistreli IZ, Otto S, Troeltzsch M. Imaging characteristics of a Stafne bone cavity - panoramic radiography, computed tomography and magnetic resonance imaging. Oral Maxillofac Surg 2014; 18: 351-3.   DOI
28 Li B, Long X, Cheng Y, Wang S. Cone beam CT sialography of Stafne bone cavity. Dentomaxillofac Radiol 2011; 40: 519-23.   DOI
29 Segev Y, Puterman M, Bodner L. Stafne bone cavity - magnetic resonance imaging. Med Oral Patol Oral Cir Bucal 2006; 11: E345-7.