Abstract
A case of total extirpation of an intra-and extradural and extramedullary neurinoma involving in the left C1-C2 is reported. Neurologically, upper cervical cord tumor (particularly extradural lesions) frequently produce a lower corvical cord symptoms in the initial stage. Therefore, a prolonged period before a definite diagnosis can be obtained and the ultimate development of tetraparesis occurs in many cases. At extirpation of the tumor for which intensified magnetic resonance imaging by the use of Gd-DTPA is very useful for diagnosis, it is necessary to perform atraumatic manipulation with microsurgical techniques on the spinal cord. This is based on assessment by magnetic resonance imaging of whether or not preservation of the C2 spinous process is possible.