The recent stimulus to cancer control in the United States, as a result of the efforts of the American Cancer Society, the United States Public Health Service and various state health departments, has eventuated in the opening of a large number of cancer detection centers throughout the country.
A cancer detection center represents a case-finding clinic to which only persons who are free from symptoms are supposed to be admitted for examination. If a patient presents himself with a symptom referable to a specific organ or system, he is not examined at a detection center, but is referred to his physician or a clinic where he may be dealt with according to his symptoms.
From Nov. 1, 1946 to July 31, 1947, a period of nine months, 1,709 persons were examined in detection centers in the state of Maryland. In this group, seventeen carcinomas were found, a prevalence rate of