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Since the end of World War I impressive advances have been made in our knowledge of the biologic characteristics, modes of early diagnosis, and treatment of tumors affecting the nervous system. It is now recognized that these tumors, once considered rare, constitute 2 per cent of all cancers. The early diagnosis of this group has been materially aided by improvement in the knowledge of the physiology of the nervous system as well as by technical developments, notably pneumoencephalography, cerebral angiography, myelography and to some extent electroencephalography.
Through improvement of surgical and anesthetic technic the operative mortality in brain tumors is at a level comparable with that of major surgical operations elsewhere in the body. The percentage of surgically curable tumors is gradually being enlarged. Improvement in roentgen therapy is prolonging the useful life of increasing numbers of patients with nonremovable growths.
The side effects of brain tumors have also become
NAFFZIGER HC, BOLDREY EB. CANCER OF THE NERVOUS SYSTEM: Brain, Spinal Cord and Peripheral Nerves. JAMA. 1948;136(2):96–103. doi:10.1001/jama.1948.72890190001006
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