Static bone cavity of the mandible: computed tomography findings with histopathologic correlation

Minowa, Kazuyuki; Inoue, Nozomu; Izumiyama, Yuri; Ashikaga, Yuichi; Chu, Baocheng; Maravilla, K R; Totsuka, Yasunori; Nakamura, Motoyasu

doi:10.1080/02841850600796517

Cited by 17 publications

(18 citation statements)

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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%

“…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%.…”

Section: Introductionmentioning

confidence: 99%

“…Although the number of reports continues to accumulate, knowledge about the aetiology and pathogenesis of SBD has been limited and confusing for a long time. 3,[7][8][9][10] Although the radiological features of SBD have been widely reported, the use of cone beam CT (CBCT) for its diagnosis has been rarely reported. 11 The aim of this article is to clarify the frequency of this phenomenon by using multislice CT (MSCT) and CBCT to add to our understanding of the aetiology and content of SBDs by MSCT analysis, and to investigate CBCT use as a tool for exploring SBDs.…”

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confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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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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“…[7][8][9][10] Moreover, computed tomography (CT) findings with histopathologic correlation demonstrated that the contents of the static bone cavity were vascular structure and fat tissue without the gland. 11 The clinical symptoms of a static bone cavity are not remarkable and the causes of the static bone cavity are still not completely established. Although no treatment is required for patients with static bone cavity of the posterior mandible for an excellent prognosis, a biopsy may be necessary to rule out other pathological lesions in the static bone cavity of the anterior mandible and enlargement case.…”

Section: Introductionmentioning

confidence: 99%

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

Minowa

Kobayashi

Matsuda

et al. 2009

Australian Dental Journal

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This study presents the radiographic findings of two cases of static bone cavity in the inferior aspect of the condylar neck and mandibular notch of the mandible. On plain CT, a soft tissue mass was observed in each cavity. The submandibular gland and the other glands were not found in each cavity. On contrast-enhanced CT, the soft tissue in the cavity in the inferior aspect of the condylar neck had marked linear enhancement and dilated vasculature structure was observed in the cavity. On the contrast-enhanced MRI, the soft tissue in the cavity of the mandibular notch had marked enhancement and flow void was detected in the cavity. In the inferior aspect of the condylar neck, the cavity size had enlarged radiographically over a period of three years. Vascular lesions were found in the cavity located in the inferior aspect of the condylar neck and mandibular notch of the mandible by both CT and MRI. The vascular lesion might explain the enlargement of the static bone cavity.

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“…Although the number of reports continues to accumulate, knowledge about the aetiology and pathogenesis of SBD has been limited and confusing for a long time. 3,[7][8][9][10] Although the radiological features of SBD have been widely reported, the use of cone beam CT (CBCT) for its diagnosis has been rarely reported. 11 The aim of this article is to clarify the frequency of this phenomenon by using multi-slice CT (MSCT) and CBCT to add to our understanding of the aetiology and content of SBDs by MSCT analysis, and to investigate CBCT use as a tool for exploring SBDs…”

Section: Introductionmentioning

confidence: 99%