A recent case of spinal cord tumor called to my attention a subjective story and objective findings which would appear to be significant in the differential diagnosis of spinal cord tumors: sudden signs and symptoms of spinal cord compression after straining. These disturbances are emphasized because they are such logical expectations in the light of certain recent observations which have been steadily clearing the mysteries in the diagnosis and localization of spinal cord tumors.
REPORT OF CASE
Clinical History.
—The patient, a well nourished man, aged 27, was referred to me by Dr. C. M. Byrnes because of inability to walk, of difficulty in urination and of a heavy dragging sensation in his back. Seven years before when straining at stool he suddenly lost the use of both legs; the arms were unaffected. On awaking the next morning the function had partially returned. At the end of four months his