Intra- and Extradural Tumor: Dumbbell Schwannoma
Schwannomas and neurofibromas together comprise one third of primary spinal cord tumors and show a predilection for the thoracic spine over the lumbar and cervical spine. Characteristically, these tumors originate from the sensory nerve root intrathecally. The tumor then may extend along the nerve peripherally through the intravertebral neural foramina. The extradural portion of the well-encapsuled tumor may reach an extreme size. A standard radiograph of the spine may show erosion or complete absence of the pedicles and lamina as well as vertebral scalloping.
KeywordsNerve Root Radicular Artery Extreme Size Exit Nerve Root Arachnoid Adhesion
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