The following case illustrates the aid which the Roentgen ray may afford in the differential diagnosis between pregnancy and fibromyoma of the uterus:
Mrs. B., aged 33, was admitted to Harper Hospital Nov. 7, 1911. Since the age of 11, she has been the subject of convulsive attacks, probably of hysterical origin, from which she is aroused with difficulty. She is the mother of three children, all of whom were delivered normally and are well at the present time. Twelve months before her admission to the hospital her menstruation ceased and has not been present since that time. Following the stoppage of her menses there has been a gradual enlargement of the abdomen which on palpation was found to be uterine.
Previous to her admission to the hospital, she had been examined by several physicians who were unable to make a positive diagnosis of pregnancy. There was no history of