Document wJ4E6439zkBmedBx7nOOa1b4

FILE NAME: CERAMICS (CER) DATE: 1950 Mar DOC#: CER043 DOCUMENT DESCRIPTION: Journal Article Abstracts - Respiratory Disease: An Industrial Hazard & Etiologie Study of Silicosis Due to Dust of Diatomaceous Earth S A L MEDICINE 'rs are described and . charts and diagrams rk should be valuable M.D. Colorado, Denver. en T heir Chemical ''N ational Institutes tingen, United States Price 70 cents. Supt. Tice, Washington 25, is monograph include I, carvacrol, thymol, (catechol, resorcinol, droxyhydroquinone) ; lalogenated phenols) ; phenols); (/) nitrophthol); (g) phenolic Tic acids (mono-, di T (i) phenolic ethers -nds are reviewed in excretion; chemical, : properties; chemical 'g by some of these cinal papers. It will y useful information. in difficulties when lation into a larger f the material, while ons at the end of a formation quickly as 'iject to make correct amended. No other oaches the thoroughayed in this volume. B. D eichmann. Archives of Industrial Hygiene and Occupational Medicine V olume 1 MARCH 1950 N umber 3 C or v ii C H T . 1950, > r t i A m i i i c a n M i d i c a l A h o c i a t i o k SIMULATION AND SELF INFLICTION AS ENCOUNTERED IN INDUSTRIAL DERMATOLOGY JOHN GODWIN DOWNING, M.D. Professor of Dermotology, Boston University School of Medicine ond Tufts College Medico! School BOSTON IN INDUSTRIAL dermatology, simulation and complementary; that is,' the applicant for work dissimulation pretends that are his skin is normal and conceals his cutaneous disease. The aftermath of this concealment may be a claim for compensation. Such a fraudulent claim, a deliberate aggravation of an alleged industrial injury or the seeking of employment which an applicant knows is dermatopathogenic to him should be considered malingering. Human beings early learn the advantages of malingering. The infant realizes that a timely outburst of crying will arouse attention and solicitude on the part of his parents. The child, the youth or the adult may feign illness in order to invoke sympathy or to free himself from the performance of undesirable tasks. Various forms of deception, fraud, simulation and malingering are seen in everyday life. In fact, few persons can honestly say that they have not practiced it in some form in their private or public life. Simulation of good health is pra-ticed in many ways. Those who examine applicants for employment, insurance or military service must always be on the alert for those who are concealing physical delects. It is important that deception be exposed in occupational medicine, especially when the factors of compensation and safety of other workers arc involved. The largest group of offenders are those who have suf fered an occupational dermatitis at one plant, have been treated and have obtained compensation, often a lump sum settlement. They then secure employment at the same type of work, deliberately expose them selves to irritants that will cause a recurrence or a new injury, and seek compensation from the second employer. Some of these workers have received large sums of money over a period of years. . The next largest group is constituted of those suffering from chronic diseases such as psoriasis, seborrheal eczema and atopic dermatitis. They secure employment and are able to work, but if they sense a layoff they immediately report an eruption, claiming that it is due to the occupation and denying that there was any disturbance prior to employ ment. If, however, the eruption was noted at the time of employment, 271 360 INDUSTRIAL HYGIENE AND OCCUPATIONAL MEDICINE Occupational inflammations of the skin occur which are due to parasites, such as animal ringworm in farmers, grooms and kennelmen. Mites constitute a defi nite occupational hazard, as, for instance, the causal mite of grain itch in a wheat cargo ship. I ndustrial D er m a titis. E. R osanove, M. J. Australia 2:194 (Aug. 6) 1949. R espiratory D is e a s e : A n I n d u str ia l H azard. A. T. Doic, Glasgow M. J 30:235 (July) 1949. ` ` Doig reviews the present status of knowledge of the respiratory disorders caused by industrial dusts, pointing out that dusts met with in industry may produce a wide variety of reactions in the respiratory tract. Mineral dusts may give rise to pneumonocomosis, which exists in three main forms, distinguished from the patho logic point of view by fib.osis or by focal emphysema or by an absence of any tissue reaction. The fibrotic pneumonoconioses exist in two main forms, one in which the fibrosis is dense and nodular, as in silicosis, and one in which the fibrosis is diffuse, as in asbestosis. Other conditions resulting from the inhalation of mineral dusts include pneumonitis, immediate or delayed, cancer of the lung and rarely, asthma. ' Vegetable dusts are in general less irritant than mineral dusts, but considerable further research is required to elucidate their toxic potentialities. Similar condi tions. which may be grouped under five main headings-m ill fever, acute and sub acute infections, Monday fever, chronic bronchitis and emphysema, and acute (allergic) asthma--are caused by a large number of the vegetable dusts. Some of these, especially those in the chronic bronchitis and emphysema group, have no features which distinguish them clinically or pathologically from similar nonoccu pational illness. Animal dusts comparatively rarely produce diseases of the respiratory tract, although asthma or hay fever may occur in sensitive persons, and infections of the respiratory tract--for example, pulmonary anthrax--may be produced. E tiolocic S tudy of S ilicosis D u e to D ust of D iatomaceous E a r th . E C ) V ig l ia n i and L. P e c c h ia i, Med. d. lavoro 40:33 (Feb.) 1949. i The authors experimented on two different lots of guinea pigs, giving each lot single intraperitoneal injections of a dust of diatomaceous earth, crude in the case of one lot and calcined for three hours at 1250 C , as for filter candles, in the case of the other. The animals were killed one month after the administration of the i diatomite dust. No macroscopic changes were encountered in the peritoneum and the intraperitoneal organs of the animals which had received the injection of crude i diatomite dust, whereas diffuse epitheloid granulomatous and fibrotic reaction was s encountered in the peritoneum, the spleen, the liver, the mesentery and the lower k aspect of the diaphragm of the animals which received the injection of calcined j diatomite d ust The authors show by means of illustrations the histologic aspect of the granuloma produced by intraperitoneal injection of calcined diatomite d ust Hie results of this experiment confirm the report of Vigliani and Mottura (Brit. . Indust. Med., July 1948) on the definite role of ignited diatomite in causing malignant silicosis among makers of filter candles. The reason for the different results from the contact with crude and with ignited diatomite lies in the fact that ignition transforms crude diatomite into microcrystalline cristobalite, which has potent silicotic properties. ABSTR. L ate S ilicosis in a A man worked for Twelve years later, v In the course of the : age of 46, he show e<l coalescent silicosis silicosis, the patiem working in a dusty ir. of the Italian laws co all restrictions co re S tudy on S erofl m.Med. d. lasoro Silicosis is a freqThe author found th out in cases of silico* tions" of serofunctu.fibrous" and the ` n" the "constellations' r. to all the data a\.*i process. Further it of practical value icr flocculation test is nr.other diseases, inc'u 1 with subsequent to be very interest ire Vesical L esions D' tion. M. B.stt.'i From 1931 to of 202 of a total of ' produced or used. 5: times in the course < performed. The rtpi the evolution of the h ance and development appearance of syrr.p: sessile growths and i bladder in 73. The : the highest carcinoge to the risk of lesions tion, pressing, dryiny amine. Aniline has exposure for a tumc years. The maxim ur tumor was twenty y. Changes in the wo. and periodical exam: frequency of bladder