Document NejL6NOzvnBxp0YDONKLJ4xJg

FILE NAME Quebec Asbestos Mining Association QAMA DATE 1951 Aug 16 DOC QAMA059 DOCUMENT DESCRIPTION Letter to Dr. Cartier Thetford Mines from William Smith Bellevue Medical Center Nept y NOIR, ERE he COPY Dt NEW YORK UNIV BELLEVUE MEDICAL MEDICAL OF NEW YORK UNIVERSITY IPC INSTITUTE 0. IN STRIAL MEDICINE CENTE 477 ST AVENUE NET YORK 16 N.Y. MURAY HILL 3- 0 August 16 1951 a Sta Dr. Pierre Cartier ar Asbestos Corporation abit Thetford Hines Quebec Canada he Dear Dr. Cartier Allow me to express our appreciation of your courtest in forwarding the data contained in your letter of July 13th It would appear that experience does not support the English view and I think this is simultaneously with any discussion of the English material material the Canadian important to record In reference to the table you sent me I note that your patient Brask is stated to have had no significant exposure I trust trust therefore that it would be correct te insert the words no asbestosis with the pathological findings in that case Since your patient Simard is listed as having having a secondary pulmonary sarcoma it would seem to me that he should be omitted omitted from the table if his tumor was in a site from the respiratory tract tract was interested to s00 tphreimdairaygnoble of pleural mesothelioma in your patients patients Cooling and Lessard Would it be possible for you to send me sections on those two In your letter you bring out the point that any give causal factor - should produce the sare variety of tumors This has beer true in the case of betanaphtylamine which seems to produce exclusively opithelial tumors in the urinary tract However the coal tar type of carcinogens are known to produce tunte of almost any tissue that becomes adequately exposed to t. . Among the metals chromate workers have shown a variety of epithelial tumors in the lungs whereas beryllium experimentally produces sarcomas in the bonebone In the event that asbestos might be carcinogenio it would not oe surprising to me to see pleural mesotheliom in some cases and bronchogenic carcinoma in others kather than than the varity of tur types with a the fincing that strikes my eye most forcibly from the date on your table is wET single exception the patients had either no ascostosis ascostosis or only minimal aster aT I note that your over the period 1940 - 1550 population during that period data derives from a population of 4000 asbestosworkerasbestosworker Could you advise how many deaths occured in that and how many came to autopsy autopsy The various lectures presented to the Cancer Prevention Committes are los being reviewed and after certain revisions on asbestosis and would very much apprecia have been made I will send e your criticism criticism of it you the sectict With all best regarde Sincerely yours William E. Smith M. Asst Pro essor