Among patients with cancer of the uterine adnexa in the 3 Danish Radium Centres, 38 were found to have tubal cancer. The diagnosis is difficult; the most important factor in early recognition is to bear in mind the possibility of tubal cancer when dealing with patients in the high‐incidence age group. During recent years, the incidence of the disease has been increasing. Age distribution, the side affected, and sterility were in accordance with previous findings. The prognosis depends more upon the clinical determination of spread of the disease at diagnosis than upon histologic grade. Exploratory laparotomy, which permits the diagnosis to be made on the operating table and the surgical procedure to be adapted accordingly, affords the best prognosis, if surgery is supplemented by high‐voltage irradiation. Since the introduction of high‐voltage therapy, there has been an increased 2‐1/2 year survival and an extension of the period without recurrence.