[Passive hemagglutination reactions in intracranial and intraspinal neoplasms].

With the use of a system of serological reactions (PHAR) on the basis of erythrocytic diagnosticums in neurosurgical patients (58 with tumors of the brain, 11 with tumors of the spinal cord, 112 with tumor-like diseases of the brain, 50 with lesions of the spinal cord marked by a tumor-like course) and in a control group of individuals (100 donors and 30 patients with tumors of the mammary gland and intestine) results were produced which bore evidence of the high specificity of the methods for detecting signs of brain damage and determining the histological nature of tumors of the brain and spinal cord in most patients. For instance, the histological nature of the tumors was identified in the preoperative period in 79% of patients with intracranial and in 73% of those with intraspinal new growths.