Static bone cavity in the condylar neck and mandibular notch of the mandible

Minowa, Kazuyuki; Kobayashi, Ichizo; Matsuda, Akira; Ohmori, Keiichi; Kurokawa, Y; Inoue, Nozomu; Totsuka, Yasunori; Nakamura, Motoyasu

doi:10.1111/j.1834-7819.2008.01088.x

Cited by 11 publications

(8 citation statements)

References 22 publications

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“…Other tissues such as connective tissue, fat, lymphatic, muscular or vascular tissues have been found in the bone cavity and empty cavities have also been detected surgically or by advanced imaging methods (2, 3, 5, 7-9, 11). The salivary gland and fat tissue contents of the cavities in two of the presented cases are in accordance with the literature (5,12,19).…”

Section: Discussionsupporting

confidence: 77%

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Imaging Characteristics of Stafne Bone Cavity

et al. 2017

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Background: Stafne bone cavities (SBCs) are typically seen on panoramic radiographs as unilocular, rounded or ovoid shaped, welldefined corticated radiolucencies that are located between the mandibular first molar and the angle of the mandible below the inferior alveolar canal, but they may rarely have different radiographic appearances and locations. Objectives: The purpose of this study was to evaluate the imaging features of SBC presenting various typical and atypical features and to show the contribution of different imaging techniques to diagnosis. Patients and Methods: Seventeen patients who had a panoramic radiograph that revealed an image compatible with SBC were investigated in this study. In addition to panoramic radiography, lateral oblique mandible projection for three patients, cone beam computed tomography (CBCT) for nine patients, magnetic resonance imaging (MRI) for two patients were performed to determine the exact location of the cavity and to confirm the diagnosis. Results: Seventeen patients were diagnosed with SBC. Two patients had bilobed SBC, one patient had a SBC on the buccal surface of the posterior mandible, one patient had a SBC located in the ramus mandible, one patient had a SBC located in the canine-premolar region namely anterior lingual variant as rare conditions. Conclusion: Imaging techniques such as CBCT and MRI have provided detailed information about definitive diagnosis of SBC in addition to panoramic radiographs. These techniques show the size, location and content of the SBC. If the SBC is atypical, complementary imaging techniques gain more importance.

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Section: Discussionsupporting

confidence: 77%

“…The terms that have been used to describe this entity are Stafne bone defect, Stafne cyst, static bone cavity, static bone defect, lingual mandibular bony defect, and lingual mandibular salivary gland defect (2,3,5,6,11,12).…”

Section: Discussionmentioning

confidence: 99%

Imaging Characteristics of Stafne Bone Cavity

et al. 2017

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“…However, they did not suggest any possible cause for the ischaemia. In recent times, Minowa et al 7,8,22 suggested that bone erosion due to an acquired vascular lesion is another possible explanation for the formation of SBD of the mandible. According to them, the facial artery and its branches can become tortuous owing to hypertension.…”

Section: Discussionmentioning

confidence: 99%

Radiographic evaluation on prevalence of Stafne bone defect: a study from two centres in Turkey

Şişman¹,

Miloğlu²,

Şekerci³

et al. 2012

Dentomaxillofacial Radiology

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Objectives: The aim of this study was to investigate the frequency of Stafne bone defect (SBD) and to describe the clinical and radiological characteristics of detected cases. Methods: A retrospective study was performed using panoramic radiographs from 34 221 patients undergoing dental treatment in the Department of Oral and Maxillofacial Radiology at Erciyes University and Ataturk University, Turkey. After finding an image compatible with SBD in the radiographs, multislice CT (MSCT) on seven patients and cone beam CT (CBCT) on six patients were performed to confirm the diagnosis. Results: Of the 34 221 patients, 29 (0.08 %) had SBDs, of whom 4 were female (13.8%) and 25 were male (86.2 %). The age range of patients with SBD was 18-77 years (mean age 49.6 years). SBD was found in the lingual molar region in 28 patients and in the lingual caninepremolar region of the mandible in 1 patient. The contour of the concavities on CT images (MSCT and CBCT) was detected. The MSCT revealed glandular tissue within the defects. Conclusions: According to our results, SBD is an uncommon anomaly. Examination of MSCT images supports the presence of aberrant submandibular glands within these mandibular defects, suggesting that pressure from submandibular gland tissue had caused the SBD, as generally thought. Both CBCT and MSCT can provide adequate support for the detection of SBDs. The CBCT could be suggested as the most suitable non-invasive diagnostic modality for this bony configuration of the mandible since it provides a lower radiation exposure dose than MSCT. Dentomaxillofacial Radiology (2012) 41, 152-158. doi: 10.1259/dmfr/10586700 Keywords: bone cyst; computer-assisted three-dimensional imaging; panoramic radiography; cone beam computed tomography; salivary glands Introduction Stafne bone defect (SBD) was first described by Stafne in 1942, who reported 35 asymptomatic unilateral radiolucent cavities in the posterior region of the mandible. Lesions were located between the mandibular angle and the third molar, below the inferior dental canal and above the mandibular base. 1 Many other terms have been used to describe this entity, including aberrant or ectopic salivary gland; static, latent or idiopathic defect, cavity or cyst; mandibular salivary gland inclusion; lingual mandibular bone cavity, concavity or depression; and Stafne cyst, defect or cavity. [2][3][4][5][6][7][8][9][10][11] The posterior lingual variant has an incidence of between 0.10% and 0.48% when diagnosed radiologically. However, some cadaver studies have revealed that the incidence of the lesion may be as high as 6.06%. The age range is quite wide, although there is a clear predilection for males in the fifth or sixth decade. 3,6,9 When the term SBD is found in the literature, it usually refers to the posterior lingual variant. The anterior lingual variant is seven times less frequent than the posterior and is usually located between the incisor and the premolar areas, above the insertion of the mylohyoid muscle. 2,11When reviewing the literature regar...

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“…Some defects, however, have been found to be empty, possibly having been dislodged during surgery (Branstetter et al ., ; Quesada‐Gómez et al ., ; Shimizu et al ., ). These findings, as a result, have lead some researchers to conclude that Stafne's defects develop in one of four ways: (1) during embryonic development resulting in entrapped or aberrant salivary gland tissue; (2) pressure erosion by the facial artery; (3) as a result of enlargement of adjacent soft tissues, predominantly the submandibular salivary gland (Mann, ); or (4) localized failure of ossification of the mandible (Stafne, ; Campos et al ., ; Minowa et al ., ).…”

Section: Introductionmentioning

confidence: 99%

“…(3) as a result of enlargement of adjacent soft tissues, predominantly the submandibular salivary gland (Mann, 2001); or (4) localized failure of ossification of the mandible (Stafne, 1942;Campos et al, 2004;Minowa et al, 2009).…”

Section: Introductionmentioning

confidence: 99%