In the thirteen-year period from October 1959 through September 1972, there were eleven patients with tumor of cauda epuina operated upon in our clinic.
It is very important to discuss the clinical features in this disease, which is greatly similiar to disc lesions.
In this paper our eleven cases are reported and for the purpose of the further discussion about this clinical pictures, fifty cases of Japanese literatures which had been recently reported in detail are gathered and investigated.
The most common symptome is low back pain and/or radiating pain on the thigh and leg, which continues for a long time.
Sensory disburbance and muscle weakness are not always recognised.
The myelogram is the most significant and valuable aid in the differential diagnosis.
In our cases there are eight neurilemmoma, two dermoid cyste and one meningioma.