Document jvp9wRnq3Odav8Le2qqJYkMp

xxvi OCCUPA TIONAL TUMORS AND ALLIED DISEASES A. Chemical Agents .................................. .......................................... ........... 667 B. Physical Agents ...................... ................................................................. 668 a. Ultraviolet Rays . ............ 668 b. Radioactive Substances........................................................................ 668 l. Physical and Technological Aspects . ...................................... 668 II. Occupational Exposures............................... 671 m. Historical Aspects........................................................................ 674 IV. Incidence .................... .. . . . ...................................................... 676 v. Symptomatology................................................... 676 vi. Location ...................... 677 vii. Age ............... 677 viii. Causative Mechanism......................................... 678 ix. Demonstration of Radioactivity in Workers.............................. 679 x. Pathology.......................................................................... 681 xi. Experimental Osteogenic Sarcomas of Radioactive Genesis . . 684 xil. Prognosis................................................. .......................... xiii. Therapy................................... 686 687 xiv. Preventive and Sanitary Measures......................................... 688 xv. Medico-Legal Aspects ................................................................ 692 c. Roentgen-Rays .......................................... 693 d. Physical Trauma................................................... 694 Pseudoneoplastic Reactions: Traumatic Osteochondromatosis . ... 694 Traumatic Exostoses and Ecchondroses........................................... 695 Traumatic Excess Callus.................... 695 Giant Cellular Granuloma............................................................... 696 Neoplastic Reactions: Benign Tumors: Chondromas; Osteomas 696 Malignant Tumors: Osteogenic Sarcomas ..................................... 697 8. Notochordal Tissue ....................................................................................... 700 CHAPTER VIII OCCUPATIONAL AND ACCIDENTAL TUMORS OF THE EYE AND ITS ADNEXAE .................................. ......... ......................... 710 1. Chemical Agents ........................................... ............................................. 710 A. Inorganic Chemicals: Arsenic................................................................. 710 B. Organic Chemicals: Tar, Pitch, Crude Oil, Lubricating Oil, Paraffin, Creosote............................................................ ........................ ........... 710 2. Physical Agents.............................................................................................. 712 A. Radiating Energy: Solar and Ultraviolet Rays...................................... 712 Roentgen-Rays Radioactive Substances ....................... ........................ 712 B. Physical Trauma: Pseudotumors........................................................... 712 True Tumors ...................... 7X3