Document YGrQ3G4yaQj1NNjengV479M5K

Common External Marks of Occupation Or Occupational Diseases or Other Diseases (continued) Mark or "8" Probable cause Significance Comment Bursitis (excels fluid around joints). Clubbed flngei s. Joint enlargement (arthritis). Varicose veins. Flat feet (pes plenus). Saber shins. Wrist drop (wr st weakness). Extremities Apart from Skin, continued Friction, pressure, or infection. Congenital, or may be related tb heart disease. i Usually infection and gout. Hydrostatic pressure, infection among others. May be congenital; may result from weight bearing; may related to degeneration of eeniir Bursae are potential spaces in connective tissue around joints that grow in response to.func tional demand. R. M. I. Various occupations lead to some bulbing of finger ends from hy pertrophy; cause of the rela tionship to silicosis and heart disease obscure. Bonv enlargement frequently called rheumatism, usually in error; ordinarily represents re action of infection or infection products. May appear anywhere, but most common in lower extremities; little related to work as a cause. A well-known common affection important to industry but little caused by it. Congenital syphilis. j Forward bending and thickening of middle third of tibia. Metal poisoning, usually lead or arsenic. Alcohol. i A frequent feature of lead poison ing; its counterpart is ankle drop; seen in lead poisoning when leg muscles are much used. R. M. I. Many types involving many por tions of. the body from fing Many varieties constitute occu pational diseases, as in "beat elbow" in miners. Many other variations in shape . of fingers. Toes may be clubbed. Some occupational diseases, such a_s_ lea- dj p-o-ifs-o- ni?ng infrequently lead to do: nd joint enlargement. Frequently associated with in dolent ulcers. May be influenced for good oT bad respectively by good or poor footwear. Knobby shin bones in absence of saber deformity also suggests syphilis. Many other muscle groups simi larly may be weak in metal poisoning, and chiefly in lead poisoning. Some tremors cease on the ac complishment of an intention; ,, thus al;marked tremor may /\WinW J oo* o Sa*5 e (defbrmed, pigers). '^feS^aJ^^^^'euroticfioflji- ^ence^'^^r'scramp constitutes a good example of localized fa tigue; ordinarily involves those fingers and those muscles em ployed in any particular form of writing. R. M. I. In some occupations requiring highly repetitive small motions, these motions are continued long after work hours. No disa bility, but some significance related to monotony effects, etc. Somewhat characteristic swelling and deformity, usually limited to one. joint of one or more fingers. Permanent flexion of little and ring fingers (at times all fingers) with rigidity of palmar tissue. May be caused by infection, may result from oft-repeated severe pressure on palm. Said to be common among uphol Injury to fingers in or out of in dustry. sterers. Difficulty in extending fingers, but after great effort fingers fly out like jackknife blade. Unknown, but probably unrelated -to work. One, and usually more, fingers of both hands become withered, shortened, deformed, nodular, waxy-white, and at times brown or black pigmented. R. M. I. Well presented years ago in fa mous comic motion picture. Common among industrial workers and fairly common basis of claims for compensa tion. Rare before middle age. Associ ated with arthritis. A corresponding condition may exist in toes. Much worse in cold weather. (continued) oo o o 2 o cr