Document zdwjLEbmVR532rLeqDDrRdO50

08/06/2003 WED 09:41 FAX 312 996 1899 UIC LHS CHICAGO @004 ant Pathologist Asbestos Bodies No lung tissue Yes No lung tissue Yes Yes No lung tissue Yes No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue Yes No No No No lung tissue No No No Yes No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue No lung tissue Yes Patients Who 1-0 worked 35 >f a large as- id more than ants and pa tent for only plant manuim. in a railroad d on insula- which large re used, untant who office of an to came in estoa in his 0, and 10-0 m; the othlicr x I a 55ay occupa- MESOTHELIOMA--LIEBEN & PISTAWKA 561 tional asbestos exposure. Her work was always secretarial; she was bom and lived until the age of 8, in the immediate neighborhood of an as bestos textile and friction material plant where patient 1-0 had worked for 35 years. From the age of 18 she lived for SO years across the street from the plant where patient 6-0 had worked for 15 years. Patient 2-N, a clergyman from 1935 until his death in 1961, never had any occupational as bestos exposure. Prior to becoming a minister he lived for 19 years within one half of a mile of the insulation plant where patients 3-0, 4-0, and 5-0 had worked as insulation manufactur ing workers. Patient 3-N never had any occupational as bestos exposure except that, 20 years prior to his death, he had worked for one year across the street from the insulation plant mentioned in the history of patient 2-N. Patient 4-N worked for 26 years across the street from the insulation plant mentioned in connection with patients 2-N and 3-N. PatientB 5-N, a nurse, and 6-N, a meat dis tributor, had no occupational exposure nor family contact with asbestos. They both lived within three fourths of a mile of two asbestos plants in a town with the greatest incidence of mesothe1 l>unas in this study. Patiei. a 7-N and 8-N were both foremen in a storage battery plant. A careful check of the plant and their employment records revealed no asbestos exposure, past nor present. The plant is located less than 1% miles from an as bestos textile plant The exposure of these two cases is questionable. Patients 1-N and 4-N had peritoneal and pa tients 2-N, 3-N, 5-N, 6-N, 7-N, and 8-N had pleural mesotheliomas. Mesothelioma Patients With Family Con tacts Exposed to Adjestos.--Patient 1-F, a 3year-old child, was the daughter of a ceramic engineer who worked in an insulation plant that utilizes 400 tons of Canadian chrysotile and 1,500 tons of South African amesite annu ally. Patient 2-F, a 40-year-old nurse, never had any occupational asbestos exposure, but her fa ther had worked for 35 years in the insulation plant where patients 3-0, 4-0, and 6-0 had worked and which was also credited with three neighborhood cases. The nurse's brother also had worked in this plant for one year. Patient 3-F, a 67-year-old woman, never had any asbestos exposure nor had she lived near an asbestos plant She had two sons who worked as insulators in a shipyard for six years. These sons lived at home until 15 years prior to their mother's death. Patients 1-F and 3-F had peritoneal and pa tient 2-F pleural mesotheliomas. Mesothelioma Patients With Questionable Asbestos Exposure.--A study of these ten men elicited either a relatively minor or question able exposure to asbestos. Patient 1-Q was a welder for 35 years. Ac cording to a common reference,18 eight out of 12 welding electrodes contain asbestos, which is used as a filler. Patient 2-Q was a self-employed Swiss-born Swiss cheesemaker. A thorough study of the processes of Swiss cheese manufacture revealed no use of asbestos. During , the study of the manufacturing process a 600-gal boiler was no ticed. This boiler was covered with a friable as bestos insulation which flaked off on contact. Patient 3-Q, a 14-year-old boy with mesothe lioma, had no occupational contact with asbes tos nor did any of his family. On questioning, the boy's father told the authors that his boy had lived with him and had helped him while he had replaced most of the plaster board dur ing extensive remodeling of his house. Plaster board contains a high percentage of asbestos. Patient 4-Q is employed in industrial sales and never had any occupational ad>estos expo sure. Extensive questioning revealed that, on two occasions several years before, be applied asbestos insulation to boilers in his home, mix ing asbestos cement himself. His total exposure during these applications was only a matter of hours. Patient 5-Q was a brewery worker for 20 years. The brewery was no longer in business when the case was investigated. Reviewing the literature of beer production the following paragraph was discovered: "When ready for packaging the beer is fil tered through pulp filters consisting essentially of cotton fibers and asbestos. After each filtra tion this `FILTERMASS' is removed, mangled, and washed in clear, warm water, then bleach ed and sterilized at 160 to 180 F with chlorine. The washed pulp then goes directly to a pad forming machine where it is compressed at 89 to 90 pounds per square inch to form new filter pads.14" Asbestos-containing pipe insulation is used in breweries. Patients 6-Q, 7-Q, and 8-Q were all steel workers. Patient 6-Q was a crane operator; 7-Q a forger; and 8-Q a foreman and supervisor. In all cases the companies did not recall any as bestos exposure for these men. Pipe insulation containing asbestos is extensively utilized by steel companies. Patient 9-Q was a spinner in a silk company Arch Environ Health--Vol 14, April 1967