Parosteal osteosarcomas are rare, low-grade juxtacortical variant of osteosarcoma, especially in the jaws, representing 1.6% of all bony malignant tumours and upto 5% of all osteosarcomas. Only 12 cases of intraoral parosteal osteosarcomas have been reported in the English literature. In the jaws males are more commonly affected with peak occurrence at 39 years and nearly equal site predilection for maxilla and mandible. Radiographically, parosteal osteosarcomas are radiodense, lobulated masses with a broad stalk to the cortex of the bone with no periosteal reaction and medullary invasion. Microscopically, shows well-differentiated tumor with minimum atypia and rare mitotic figures separating trabeculae of woven bone. Unlike classical and periosteal osteosarcoma, it is considered to have a good prognosis. A case report of this rare entity in 22-year-old female patient with bony hard, painless swelling of 9 months duration in maxillary premolar-molar region is presented. The need for differential diagnostic approach is emphasized from other seemingly benign clinical entities.
Malformations of the teeth are designated as dental anomalies. Dental anomalies are one of the anomalies of the human structure that result from disturbances during formation of tooth. These dental anomalies including aberrant dimensions, numbers, morphology, and eruption patterns. 1-3 They can be developmental, congenital or acquired and may be localized to single tooth or involving systemic conditions. 4 The developmental anomalies of teeth are caused during tooth development, whereas the acquired anomalies are caused after tooth development. 5 These dental anomalies, such as impaction, play an effective role in the etiology of different types of malocclusions. 6 Anomalies affect the occlusion and length of the jaw arch and their ABSTRACT Background: Dental anomalies are clinically evident abnormalities which can cause various dental problems, which may complicate orthodontic treatment planning. Clinical and radiological inspection play crucial role in identification of various anomalies. This study was carried over the period of 2.5 years to determine the prevalence and distribution of various morphological dental anomalies among orthodontic patients. Methods: Demographic details along with detailed medical, dental and family histories were obtained from every patient. In addition to the intraoral examination, dental panoramic radiograph were also evaluated for dental anomalies causing disturbance in number, size, form, and location of teeth. Patients with syndromes were not included in the study. Results: Out of 678 patients, dental anomalies were present in 161 (23.74%) patients. Hypodontia was the most prevalent dental anomaly occurring in 62 (9.1%). Microdontia was second most prevalent dental anomaly observed in 39 (5.7%). Other anomalies are hyperdontia, macrodontia, transposition, double teeth, taurodontism, Amelogenesis Imperfecta, Dentinogenesis Imperfecta and Dentine Displasia. Overall prevalence of dental anomalies is more common in males (26.45%). Class II malocclusion patients are having highest prevalence rate of dental anomalies followed by class I and class III Conclusion: Dental anomalies can lead to disturbance in occlusion. Orthodontists and oral radiologist have the responsibility to observe each patient carefully for various dental anomalies and have full knowledge of them as it can help them in planning treatment for these patients and executing them without any complications.
Acoustic neuroma (AN), also called vestibular schwannoma, is a tumor composed of Schwann cells that most frequently involve the vestibular division of the VII cranial nerve. The most common symptoms include orofacial pain, facial paralysis, trigeminal neuralgia, tinnitus, hearing loss, and imbalance that result from compression of cranial nerves V–IX. Symptoms of acoustic neuromas can mimic and present as temporomandibular disorder. Therefore, a thorough medical and dental history, radiographic evaluation, and properly conducted diagnostic testing are essential in differentiating odontogenic pain from pain that is nonodontogenic in nature. This article reports a rare case of a young pregnant female patient diagnosed with an acoustic neuroma located in the cerebellopontine angle that was originally treated for musculoskeletal temporomandibular joint disorder.
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