Abstract
Two cases of foramen magnum tumor on whom long period should be took for the final diagnosis from initial adission were reported
The cases were a thirty-three year old woman and a fourty-eight year old man. On both cases, final diagnosis could not be made on their first admission because of the previous history of trauma in the first case. And, in second case, demyelinating disease had been suspected. The diagnosis of formen magnum tumor was established on second admission by thorough examination including serial CT scanning and myelography.
Total resection of the tumor was done both cases. The results were favorable. Histological examination showed Schwannoma.
