The title admittedly is imperfect. But if it conveys the idea that, in spite of modern techniques, in medical practice the diagnosis of brain tumor is missed or delayed quite as often as it is promptly made, its purpose is served.
At least, this has been true in our practice. In most of the cases reported the diagnosis was either mistaken or was delayed so long as to make survival, when it occurred, of dubious usefulness.
In 1954 Horrax1 cited Eisenhardt's 1935 review of Cushing's series of 2,000 patients. Of these, 25% (31% of those who survived surgery) lived from 5 to 28 years. Horrax also refers to Grant's review in 1953 of a group of 1,603 patients with brain tumor, 534 (33.3%) of whom lived for 5 years or more. He concludes that "what may perhaps be said is that roughly 30 to 35% of the patients operated