Cases reported "Neurilemmoma"

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1/40. Central neurilemmoma of the jaws. review of literature and case report.

    Neurilemmomas presenting as primary central bone tumors are extremely rare. Only 21 cases have been reported to have arisen in the jaws; all except for one have occurred in the mandible. The majority of these have been associated with the inferior dental nerve. A case of a central neurilemmoma arising in the anterior mandible is reported. Its probable origin is from one of the alveolar branches of the incisive nerve--an unusual site in the mandible. The radiographic features include expansion of cortical bone, resorption of roots of teeth, the presence of lace-like bony septa and a spotty calcification within the tumor. The treatment and the prognosis are briefly discussed.
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keywords = mandible, jaw
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2/40. E.N.T. manifestations of Von Recklinghausen's disease.

    Von Recklinghausen's disease (VRD) is a neurocutaneous, systemic disease characterized by CNS tumors and disorders, cafe-au-lait spots, generalized cutaneous neurofibromata, skeletal deformities, and somatic and endocrine abnormalities. It is an autosomal dominant, hereditary disorder found in approximately 1:2500 to 3300 births. There are many manifestations of this disease in the head and neck region of interest to the otolaryngologist. case reports of three patients with multiple ENT involvements are detailed. A review of the literature is presented with a brief discussion of diagnosis and treatment. The most common intracranial tumor in the adult is the acoustic neuroma, usually bilateral, while in the child it is the astrocytoma. A defect in the sphenoid bone is common and may produce temporal lobe herniation into the orbit causing pulsatile exophthalmos. Involvement of the facial bones usually causes radiolucent defects secondary to neurofibromata within nerve pathways, and a variety of asymmetrical changes, especially within the mandible. "elephantiasis" of the face is a hypertrophy of the soft tissues overlying a neurofibroma, often quite extensive and disfiguring. Laryngeal and neck involvement may compromise the airway and early and repeated surgical intervention is required. The over-all malignancy rate approaches 30%, indicating that the patient with VRD may be predisposed to developing a malignancy. There appears to be an increased surgical risk in these patients, with some demonstrating abnormal responses to neuromuscular blockade.
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ranking = 0.32288343506323
keywords = mandible
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3/40. neurilemmoma of the mandible.

    Intraosseous neurilemmoma is rare, representing less than 1% of benign primary bone tumors. The site most commonly involved is the mandible. We report on a neurilemmoma of the mandible in a 30-year-old woman. A panoramic radiograph of the mandible showed a well-defined unilocular osteolytic lesion with a thin uniform sclerotic margin located in the body of the mandible. The CT scan confirmed a well-defined osteolytic lesion with thinning of the cortex of the body of the left side of the mandible. Histologically, the lesion was a moderately cellular neoplasm with distinct palisading and numerous Verocay bodies. Ultrastructurally, the cytoplasmic membranes were distinct and coated by amorphous bands of basal lamina. Complete excision was achieved by removing the tumor from the inferior alveolar nerve.
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ranking = 2.905950915569
keywords = mandible
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4/40. Cervical sympathetic chain schwannomas masquerading as carotid body tumors.

    Cervical sympathetic chain (CSC) schwannoma is a rare neurogenic tumor that can mimic a carotid body tumor (CBT). Two male patients aged 33 and 49 years old were referred for a cervical mass thought to be a CBT. Both patients were found to have an asymptomatic, pulsatile, nontender mass located at the level of the angle of the mandible. Both patients were neurologically asymptomatic and cranial nerves were normal. Both patients underwent neck exploration and resection of the mass involving the CSC. Postoperatively, a Horner's syndrome was present. Histopathology confirmed both tumors to be schwannomas of the CSC. At follow-up, both patients are asymptomatic with no recurrence. The main imaging criterion to differentiate a CBT from a CSC schwannoma is the lack of hypervascularity of the latter. Malignant transformation is extremely rare. Tumor excision gives excellent results with no local recurrence. Horner's syndrome is an expected postoperative complication.
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ranking = 0.32288343506323
keywords = mandible
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5/40. Intraosseous neurilemmoma of the mandible.

    We report a rare case of intraosseous neurilemmoma of the mandible, with an emphasis on radiographic findings. The tumor, located mainly in the premolar region, presented as an expansive, unilocular, well-defined, radiolucent lesion on plain radiography. No dilatation of the mandibular canal was identified. MR imaging helped to identify the solid nature of the tumor. A biopsy was necessary to make the final diagnosis because of the relatively nonspecific nature of the lesion.
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ranking = 1.6144171753161
keywords = mandible
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6/40. Unusual presentation of schwannoma.

    Schwannomas are slow growing benign tumours arising from the nerve sheath. Two cases of schwannoma arising from the vagus nerve are presented here. One case was found in a 6-year-old boy and another one in a 30-year-old man. In the first case the tumour was detected on the left side of the neck just below the angle of the mandible, and in the second case it was found on the lower part of the right side of the neck. Histopathology confirmed the diagnosis as first one to be of Antoni-A type and the second one to be of Antoni-B type. Both the tumours were excised and on follow-up the patients were doing well.
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ranking = 0.32288343506323
keywords = mandible
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7/40. Intraosseous schwannoma of the humerus.

    Intraosseous schwannomas are rare benign neoplasms of the bone, of which fewer than 200 cases have been described in the world literature. These tumors are well-defined, lytic lesions, rarely associated with pathologic fracture. The mandible is the most frequently involved bone. We present only the third case of an intraosseous schwannoma involving the humerus.
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ranking = 0.32288343506323
keywords = mandible
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8/40. Neurilemomas of the infratemporal space: report of a case and review of the literature.

    We describe a case of a trigeminal neurilemoma in an adolescent girl. It primarily involved the infratemporal space and extended into the middle cranial fossa, and began with only ocular symptoms. The surgical management is emphasized, illustrating the approach to the infratemporal fossa through a wide osteotomy of the coronoid process of the mandible without the need for mandibular split.
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ranking = 0.32288343506323
keywords = mandible
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9/40. Solitary intraosseous neurilemmoma of the tibia: review of intraosseous neurilemmoma and neurofibroma.

    This is a case report of a 59-year-old woman with a neurilemmoma involving the tibia, a site not previously reported for this tumor. neurilemmoma, a benign neoplasm which rarely involves bone, arises from the schwann cells in the nerve sheath. It is a distinct pathological entity separate from solitary neurofibroma, and arises from the connective tissue coats of nerves, but which also involves bone. The incidence of the 2 types of nerve sheath tumors is obscured by the tendency of some authors to use the terms interchangeably. Forty-eight cases of true intraosseous neurilemmoma have been reported in the literature. Of 18 cases of solitary intraosseous neurofibroma primary in bone, all were in the jaw and 6 were malignant. The diagnosis of intraosseous neurilemmoma may be missed because of its rarity and roentgenologic appearance of cystic bone disease which is not distinctive except that it resembles other commonly encountered bone lesions. A positive diagnosis is based only on the microscopic pathology. Complete local resection generally produces an excellent result without recurrence.
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ranking = 0.0062699389620646
keywords = jaw
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10/40. Intraosseous schwannoma of the mandible: a case report and review of the literature.

    Schwannomas are benign neoplasms originating from the neural sheath and occurring most often in the soft tissues of the head and neck. Intraosseous schwannomas, however, are rare. The most common site of occurrence for these unusual lesions is the mandible. This article documents a case of an intramandibular schwannoma and provides a review of the literature on intraosseous schwannomas, with special attention to cases arising in the mandible and the maxilla.
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ranking = 1.9373006103794
keywords = mandible
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