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Article
January 12, 1935

TUMORS OF THE FRONTAL LOBE: CLINICAL OBSERVATIONS IN A SERIES VERIFIED MICROSCOPICALLY

Author Affiliations

Fellow in Neurologic Surgery, the Mayo Foundation; ROCHESTER, MINN.
From the Sections on Neurology and Neurologic Surgery, the Mayo Clinic.

JAMA. 1935;104(2):93-99. doi:10.1001/jama.1935.02760020009004
Abstract

This study is the result of an analysis of the clinical observations in a series of 314 cases of tumor of the frontal lobe encountered at the Mayo Clinic up to Jan. 1, 1933, in which the tumor was verified microscopically. In a previous paper by Voris, Kernohan and Adson,1 this series was analyzed from the standpoint of the anatomic site, pathologic classification and operability of the tumors. Various anatomic groups were established; for example, that in which the tumor was confined to the frontal lobe, comprising 122 tumors; that in which the tumor was primary in the frontal lobe but invaded other parts of the brain, comprising 152 tumors, and, finally, that in which the tumor originated elsewhere but invaded the frontal lobe secondarily, comprising forty tumors.

In summarizing and tabulating the principal clinical studies in this paper, we will give the relative frequency of occurrence of these

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