The object of this report is to give a survey of the 255 cases, with the presumptive diagnosis of "brain tumor," that passed through Dr. Cushing's service during my twelve months' period as his assistant. All patients referred to the hospital as possible tumor cases (suspects) have been included, even though further investigation has proved the condition to be other than tumor.
A year ago one of my predecessors, Dr. Percival Bailey, made a report1 on the working classification of brain tumors then in use in the clinic. In grouping the present series, a few modifications will be made in the program which he employed. The cases will be presented under four main divisions:
Verified Brain Tumors.—In this group, the diagnosis, with the few exceptions to be noted, has been determined by the histologic examination of tissue secured at operation or necropsy.
Unverified Brain Tumors.—In these cases,
LOCKE CE. A REVIEW OF A YEAR'S SERIES OF INTRACRANIAL TUMORSJUNE, 1920, TO JUNE, 1921. Arch Surg. 1921;3(3):560–581. doi:10.1001/archsurg.1921.01110090119003