scholarly journals Maxillofacial Radiology 194

2021 ◽  
Vol 76 (09) ◽  
pp. 567
Author(s):  
Jaco Walters
Keyword(s):  
Soft Tissue ◽  
Root Resorption ◽  
Inferior Alveolar Nerve ◽  
Intimate Relationship ◽  
High Density ◽  
Maxillofacial Radiology ◽  
Conventional Radiograph ◽  
Tooth Roots ◽  
Inferior Border ◽  
Inferior Alveolar Nerve Canal

CBCT imaging and analysis was performed. Observe unilateral expansion by the distending soft tissue outline illustrated through 3D rendering (Figure 2). Sagittal oblique (Figure 3) and axial (Figure 4) slices depict a round heterogenous predominantly high-density lesion with an encompassing thin uniform less dense peripheral band. Irregular root resorption, displacement of the inferior alveolar nerve canal, buccal-lingual cortical expansion, thinning, and interruption was apparent. Irregular thickening at the inferior border and surrounding osteosclerosis were noted. A macroscopic view (Figure 5), photomicrograph (Figure 6), and conventional radiograph (Figure 7) of vertically sectioned surgical specimens of similar lesions. Note the intimate relationship with the tooth roots.

LIPOMA OF THE INFERIOR ALVEOLAR NERVE CANAL : EXCEPTIONAL LOCATION OF INTRAOSSEOUS LIPOMA

2019 ◽  
pp. 1-2
Author(s):  
Hicham Sabani
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Rare Case ◽  
Inferior Alveolar Nerve ◽  
Soft Tissue Tumors ◽  
Cone Beam ◽  
Diagnostic Challenge ◽  
Intraosseous Lipoma ◽  
Histopathologic Analysis ◽  
Inferior Alveolar Nerve Canal

Lipomas are the most commonly occurring soft tissue tumors, being intraosseous involvement very rare, and the jaw is its most uncommon bone location. Thus intraosseous mandibular lipomas constitute a real diagnostic challenge due to the unspecic clinical and radiographic features, therefore, only 28 cases have been reported in the literature. Herein we report an extremely rare case of an intraosseous mandibular lipoma that initially developed in Inferior alveolar nerve canal, characterize with dental cone beam computed tomography, and conrmed with histopathologic analysis after surgery. To the best of our knowledge, our case is one of the rst cases of intraosseous mandibular lipomas involving the inferior alveolar nerve canal never been previously reported. Their rarity reinforces the need to document each and every case.

scholarly journals An unusual presentation of intraosseous malignant peripheral nerve sheath tumour of mandible

2019 ◽  
Vol 48 (7) ◽  
pp. 20180341 ◽  
Author(s):  
Sanghoon Lee ◽  
Chena Lee ◽  
Jin-kyu Kim ◽  
Woong Nam
Keyword(s):  
Peripheral Nerve ◽  
Signal Intensity ◽  
Inferior Alveolar Nerve ◽  
Magnetic Resonance Images ◽  
Low Grade ◽  
Nerve Sheath Tumour ◽  
Nerve Sheath ◽  
Grade Malignancy ◽  
Inferior Alveolar Nerve Canal ◽  
Peripheral Nerve Sheath Tumour

Malignant peripheral nerve sheath tumour (MPNST) is a rare mesenchymal tumour which usually presents high grade malignancy. We report an atypical case of intraosseous malignant peripheral nerve sheath tumour on mandible in a 36-year-old male. Patient presented with an incidentally discovered radiolucency on the left anterior mandible and did not complain of any symptoms. Panoramic radiograph and computed tomography showed enlargement of inferior alveolar nerve canal, thinning of the cortex and calcified foci within an expansile mass. Magnetic resonance images revealed heterogeneous hyperintense signal intensity with a well-defined margin on T2 weighted images, heterogeneous enhancement on contrast-enhanced T1 weighted images and intermediate signal intensity and inferior alveolar nerve canal enlargement on T1 weighted images. In spite of benign radiologic characteristics as mentioned above, histopathologic examination of biopsied specimen otherwise revealed a low-grade malignancy. Wide excision of mandible was performed and there has been no loco-regional recurrence or distant metastasis over 1 year following surgery. This case indicates that, even when imaging modalities clearly demonstrate benign nature of intraosseous neurogenic tumour, care must be taken to establish proper treatment plan for assumed malignancy with a definitive histopathological analysis.

scholarly journals Assessment of the lower limb soft tissue artefact at marker-cluster level with a high-density marker set during walking

2017 ◽  
Vol 62 ◽  
pp. 21-26 ◽  
Author(s):  
Arnaud Barré ◽  
Rachid Aissaoui ◽  
Kamiar Aminian ◽  
Raphaël Dumas
Keyword(s):  
Soft Tissue ◽  
Lower Limb ◽  
High Density ◽  
Marker Cluster ◽  
Cluster Level ◽  
Density Marker

Inferior Alveolar Nerve Canal Position: A Clinical and Radiographic Study

2007 ◽  
Vol 65 (3) ◽  
pp. 470-474 ◽  
Author(s):  
Marci H. Levine ◽  
Allison L. Goddard ◽  
Thomas B. Dodson
Keyword(s):  
Inferior Alveolar Nerve ◽  
Radiographic Study ◽  
Inferior Alveolar Nerve Canal

scholarly journals Cone Beam Computerized Tomography Measurement of Alveolar Ridge at Posterior Mandible for Implant Graft Estimation

2015 ◽  
Vol 41 (6) ◽  
pp. e231-e237 ◽  
Author(s):  
Wenjian Zhang ◽  
Justin Tullis ◽  
Robin Weltman
Keyword(s):  
Computerized Tomography ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Cone Beam ◽  
Cortical Plate ◽  
Alveolar Ridge ◽  
Alveolar Crest ◽  
Mandibular Molar ◽  
Cone Beam Computerized Tomography ◽  
Inferior Border

Damaging the inferior alveolar nerve (IAN) is the most serious complication when harvesting an autogenous graft from posterior mandible. The objective of this study was to use cone beam computerized tomography (CBCT) to measure dimensions of the alveolar ridge in the posterior mandible for estimation of a safe graft size, and then analyze how it is related to the gender, age, and dentition status of subjects. CBCT scans were screened to include 59 subjects without interfering pathologies. Alveolar height was measured from the alveolar crest to superior border of IAN and also to the inferior border of the mandible. Alveolar width (from buccal to lingual cortical plates) and buccal bone thickness (from buccal cortical plate to mandibular molar mesial root buccal surface) were measured at the coronal, middle, and apical thirds divided from the alveolar crest to the IAN. It was found that males and dentate sites had larger alveolar dimensions than did females and edentulous sites, respectively. Bone volume did not correlate significantly with age. Buccal bone thicknesses increased from coronal to apical and from the first to the third molar generally. A larger bone graft could be harvested from male than female patients, with a mean harvestable graft dimension (height × width in mm) for male was 15.5 × 3.2, and for female was 14.1 × 2.9. In conclusion, males and dentate arches demonstrate larger alveolar volumes than do females and edentulous regions, respectively. Larger alveolar grafts can be harvested from males compared to the females. Age does not seem to affect alveolar dimension/graft volume.

scholarly journals Accuracy of software designed for automated localization of the inferior alveolar nerve canal on cone beam CT images

2016 ◽  
Vol 45 (2) ◽  
pp. 20150298 ◽  
Author(s):  
Ehsan Bahrampour ◽  
Ali Zamani ◽  
Sadegh Kashkouli ◽  
Elham Soltanimehr ◽  
Mohsen Ghofrani Jahromi ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Inferior Alveolar Nerve ◽  
Ct Images ◽  
Cone Beam ◽  
Inferior Alveolar Nerve Canal

Effects of Two Different Anesthetic Solutions on Injection Pain, Efficacy, and Duration of Soft-Tissue Anesthesia with Inferior Alveolar Nerve Block for Primary Molars

2016 ◽  
Vol 40 (6) ◽  
pp. 456-463 ◽  
Author(s):  
Ülkü Şermet Elbay ◽  
Mesut Elbay ◽  
Emine Kaya ◽  
Sinem Yıldırım
Keyword(s):  
Soft Tissue ◽  
Postoperative Complications ◽  
Nerve Block ◽  
Inferior Alveolar Nerve ◽  
Injection Pain ◽  
Primary Tooth ◽  
Inferior Alveolar Nerve Block ◽  
Double Blind ◽  
Mandibular Molars ◽  
Pain Duration

Objectives: The purpose of the study was to compare the efficacy, injection pain, duration of soft tissue anesthesia, and postoperative complications of two different anesthetics (2% lidocaine with 1:80,000 epinephrine and 3% plain mepivacaine) in pediatric patients in inferior alveolar nerve block (IANB) administered by a computer-controlled delivery system (CCDS). Study Design: The study was conducted as a randomized, controlled-crossover, double-blind clinical trial with 60 children requiring bilateral pulpotomy or extraction of primary mandibular molars. A CCDS was used to deliver 3% mepivacaine to 1 primary tooth and 2% lidocaine to the contralateral tooth with an IANB technique. Severity of pain and efficacy of anesthesia were evaluated using the Face, Legs, Activity, Cry, Consolability Scale, and comfort and side effects were assessed using a questionnaire. Data were analyzed using the Mann–Whitney U, Wilcoxon t, and Fisher exact tests. Results: Patients receiving 2% lidocaine experienced significantly less pain during injection than those receiving 3% mepivacaine, and no significant differences were found in the pain scores during treatments or in postoperative complications between the two anesthetics. The mean durations of anesthesia for 3% mepivacaine and 2% lidocaine were 139.68 minutes and 149.10 minutes, respectively. Conclusions: Plain mepivacaine and 2% lidocaine were similarly effective in pulpotomy and the extraction of primary mandibular molars. Although the use of 3% mepivacaine provided a shorter duration of anesthesia than 2% lidocaine, both solutions showed similar results in terms of postoperative complications.

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