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A patient with traumatic anterosuperior dislocation of the mandibular condyle into the temporal fossa without condylar fracture is reported. This form of dislocation is rare — only 2 reports have been published. For this patient, unlike previously reported patients, the intraoral approach was used to perform coronoidotomy and condylotomy, and a favourable result was obtained with the subsequent use of elastic traction.

We report a case of myoepithelioma arising in the left mandibular notch, between the temporal and the masseter muscle.A 37-year-woman visited our Department of Dentistry and Oral Surgery because of gradual swelling of the right cheek and trismus of 2 months' duration. A panoramic radiograph showed a radiopaque circumscribed lesion between the coronoid and the articular process. A computed tomographic examination clearly showed a large mass involving the exo-lateral and posterior parts of the coronoid process. The mass was 20mm in diameter. Total enucleation of the mass was performed via the oral cavity with an ostectomy of the coronoid process under general anesthesia. The mass was diagnosed histopathologically as myoepithelioma, which had not been suspected. Given that myoepithelioma generally where glands are located, we believe that occurs the tumor arose from an ectopic salivary gland and developed at its unique location. To our knowledge, no report has previously described a myoepithelioma arising in the same region as ours, including those on pleomorphic adenomas, from which myoepithelioma was distinguished in the revised WHO classification in 1991. We therefore present this rare case with some comments.

Fourteen patients (17 joints) with TMJ closed lock treated by stabilization splints, were evaluated with regard to condyle movement and changes in the disc and bone by means of MR imaging before and after treatment.In all 13 joints that responded to treatment, condyle mobility increased after treatment. Disc displacement and deformity progressed in 3 joints. Disc reduction was seen in 2 joints, and although 11 joints were still locked, disc mobility improved in association with structural changes. In 4 joints with no response to treatment, these changes were not seen. Pseudodisk formation and osseous changes were not observed in any patient.These results suggest that the use of stabilization splints in patients with closed lock may promote disc reduction and increase condylar and disc mobility even when the disc is still locked.

A case of spindle cell lipoma of the tongue is presented. The patient, a 71-year-old man, had a painless swelling of the tongue. Physical examination revealed two discrete, tender masses in the left ridge of the tongue. These masses were removed surgically. Histopathologically, they consisted of small groups of mature lipocytes separated by spindle cells and of stroma to composed of bundles of collagen fibers and mucinous materials. The spindle cells had a single fusiform nucleus. The histopathological diagnosis was spindle cell lipoma. Spindle cell lipoma commonly arises in the posterior neck, upper back, and shoulders and is extremely rare in the oral cavity. Only nine cases have been reported in the literature.