[Unusual form change of the nasal tip. Solitary, myxoid neurofibroma of the nasal tip].
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Intervertebral disc herniation is a common cause of radiculopathy and myelopathy in adulthood. It is an uncommon tumor mimic. We report on an extradural disc associated with an osseous defect ostensibly caused by pressure erosion and appearing as a neural tumor. It showed homogeneous enhancement on a contrast-enhanced MR examination, leading to an erroneous diagnosis of nerve sheath tumor. An attempt has been made to explain the likely mechanism of formation accounting for the imaging appearances, along with a review of the literature.
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A case of cervical chordoma in a 36-year-old white man with hypoesthesia in the neck and right shoulder, neck pain, and restricted neck mobility is presented. Plain radiographs of the cervical spine showed radiolucency of the body of C2 on the right side and enlargement of the right intervertebral foramen at C2-C3 level. Tumor encasement of the vertebral artery was demonstrated by MR imaging and confirmed by conventional arteriography. This proved to be particularly important for preoperative assessment.
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A dumbbell-shaped neurogenic tumor was resected using a combined approach employing a thoracoscopic procedure and limited laminectomy. The part of the tumor at the thoracic cavity was first amputated at the orifice of the foramen and then removed. Part of the spinal canal and intervertebral foramen was then removed by means of limited laminectomy without facetectomy. As a result, surgery was performed with a minimum of surgical stress and the patient did not require vertebral instrumentation.
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