Document reZdrEZEzO7rbvQgoKXkDQy9q

BERG--CANCER DETECTION IN INDUSTRY 281 Two proved cancers, a carcinoma of the rectum and a melanosarcoma of the tragus of the ear, were found in men aged 49 and 41 years, respectively. Radical operations were performed in both instances, and the men, one with a permanent colostomy, returned to their jobs. The incidence of proved cancers among males was 0.44 per cent. This was somewhat higher than the figure of 0.25 per cent for males cited by the American Cancer Society in its Detection Center Report of 1949, which was based on a much larger number of examinations. Table 1.--Distribution of Employees According to Age Groups Age Groups, Yr. Under 35...................................................... ......... 35-44........................................................... 45--54............................................................ 55-64........................................................... ......... 65 and over................................................. All ages....................................................... . Total.................................................... Sex M F F F M F F F Employees Examined Plant Population A!_______________________________________ --- > tt Per Cent Per Cent Number of Total Number of Total 185 37.6% 450 31.3% 22 4.5 64 4.4 93 19.9 6 1.2 125 25.5 6 1.2 321 22.3 40 2,8 329 22.8 27 1.9 44 8.9 1 .2 179 12.4 3 .2 5 1.0 0 27 1.9 0 ...... 457 91.5% 1,306 90.7% 35 8.5 134 9.3 492 100%, 1,440 100% Table 2.--Incidence of Tumors Typo Proved cancers: Number Carcinoma of rectum............................................................................................... 1 Melanosarcoma .................................................................. Benign tumors: Fibroid of uterus......................................................................................... Hemangioma ..........................................,...................................... ,................... Skin papilloma......................................................................................................... Fibroma, neurofibroma...................................................................................... Lipoma ......................................................................................................................... 7 8 4 3 Lesions or tumors requiring observation or treatment as a precaution against cancer: Adenoma of thyroid............................................................................................ 3 Rectal polyps......................................................................................................... 24 Teratoma of testis.................................................................................................... 2 Melanoma .................................................................................................................... 1 Leukoplakia of buccal mucosa............................................................................ Kraurosis vulvae.......................................................................................... Undescended testis..................................................................................................... 1 6 3 1 1 In table 2 are shown the number and the types of benign tumors discovered in the survey and also the various lesions that sometimes become cancerous. In the latter category, the presence' of rectal polyps in 5 per cent of the cases is noteworthy. About the same incidence of polyps in presumably normal persons was reported recently by Miller, Day and L'Esperance.2 Diseases other than those related to tumors are recorded in table 3. Anorectal disorders, hypertension, duodenal ulcer, obesity, hernias and defective hearing-- 2. Miller, C. J.; Day, E., and L'Esperance, E. S.: The Value of Proctoscopy as a Routine Examination in Preventing Deaths from Cancer of the Large Bowel, New York State J. Med. 50:2023-2027 (Sept. 1) 19S0. f. ! i -I) (-T 5 ' ' t V p,