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Fig:. 1. Simple silicosis (second stage). Notice the symmetrical, discrete nodulation. This patient was a feldspar miner for fifteen years. He had no symptoms. Fig. 2. Advanced silicosis with spontaneous pneumothorax. This film is that of a colored male, aged 24 years. He worked as a sand blaster in a granite cutting shed approximately s’x years without any dust control measures. He was exposed to high concentrations of sand and granite dust. The film shows bilateral nodulation, conglomerate shadows, emphysema and a localized area of spontaneous pneumothorax. He died a few weeks after this film was made. Autopsy showed advanced silicosis. No tuberculosis was found. the form of concentric whorls known as silicotic nodules. Eventually, if the dust exposure is heavy, there is partial blockage of the lymphatics. Some of the wandering cells enter the parenchyma and cause the formation of nodules there also. Then we have the typical picture of simple silicosis—namely, numerous discrete nodules, symmetrically distributed through both lungs. Fortunately, most cases come under this classification. There is, however, a second type known as massive conglomerate silicosis. Here we may have massive conglomerate shadows occurring bilaterally and usually on a background of nodulation. As a rule these cases show marked emphysema. The etiology here is not clear, but Gardner states that in about 60 per cent of autopsies in this group he has been able to find evidence of tuberculosis. He feels that, in these cases at least, the massive type of lesion is probably accounted for by the combination of silicosis and tuberculosis. For the remaining 40 per cent he has no satisfactory explanation. In my own experience I have gained the impression that I massive lesions occur most frequently among those workers exposed to high concentra- Fig. 3. Silicosis and tuberculosis. This film is that of a molder in an iron foundry for fifteen years. His symptoms were productive cough and loss of weight and strength. The sputum was positive for tubercle bacilli. He did not respond to sanatorium treatment. Autopsy revealed silicosis and tuberculosis. tions of dust having a high free silica content. A third group of silicotics comprises those with pulmonary infection. Silicosis seems to favor the development of tuberculosis, which is by far the most frequent and serious complicating infection. Its appearance may range from small coalescing shadows on a background of simple nodulation to massive shadows involving the greater part of both lungs. Usually the development of such lesions is very gradual. The discrete nodulation of simple silicosis does not cause symptoms, and therefore is usually discovered in routine industrial surveys. The massive type with the emphysema that usually accompanies it may cause disabling dyspnea and cough, but it is not unusual to see workers with such lesions carrying on their usual occupations with only mild symptoms. The third type, silicosis with infection, comprises only a small percentage of the total number of cases of silicosis; but it is the most important, because most of the disability and deaths occur in this group. The course of tuberculosis, the most frequent infection complicating silicosis, is usually chronic, and patients do not exhibit the toxic symptoms that ordinarily accompany uncomplicated tuberculosis. Quite often the only complaints are dyspnea and cough, resulting in a decreased capacity for work. Weakness, loss of weight and fever are frequently late symptoms. February, 1941 PNEUMOCONIOSIS—EASOM
Object Description
Rating | |
Fixed Title * | NCHH-17: North Carolina Medical Journal [1940-2001] |
Document Title | North Carolina Medical Journal [1940-2001] |
Subject Topical Other | Public Health -- Periodicals.; Physicians -- North Carolina -- Directory.; Societies, Medical -- North Carolina -- Periodicals. |
Description | Includes Transactions of the Society, -1960; 1961- , Transactions issued separately, bound in.; Includes Transactions of the auxiliary to the Medical Society of the State of North Carolina and Proceedings of the North Carolina Public Health Association. Official organ of the Medical Society of the State of North Carolina, 1940-May 1972; of the North Carolina Medical Society, June 1972-. Vols. for 1940-May 1972 published by the Medical Society of the State of North Carolina; June 1972- by the North Carolina Medical Society. |
Contributor | Medical Society of the State of North Carolina. Transactions.; Medical Society of the State of North Carolina.; North Carolina Medical Society.; North Carolina Medical Society. Transactions.; North Carolina Public Health Association. Proceedings. |
Publisher | [Winston-Salem] : North Carolina Medical Society [etc.], 1940- |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1941 |
Identifier | NCHH-17-002 |
Form General | Periodicals |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 2 |
Health Discipline | Medicine |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-17/nchh-17-002.pdf |
Document Sort | all; nchh-17 |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-17-002 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-17 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1306322 |
Revision History | done |
Description
Fixed Title * | Page 81 (image) |
Document Title | North Carolina Medical Journal [1940-2001] |
Subject Topical Other | Public Health -- Periodicals.; Physicians -- North Carolina -- Directory.; Societies, Medical -- North Carolina -- Periodicals. |
Description | Includes Transactions of the Society, -1960; 1961- , Transactions issued separately, bound in.; Includes Transactions of the auxiliary to the Medical Society of the State of North Carolina and Proceedings of the North Carolina Public Health Association. Official organ of the Medical Society of the State of North Carolina, 1940-May 1972; of the North Carolina Medical Society, June 1972-. Vols. for 1940-May 1972 published by the Medical Society of the State of North Carolina; June 1972- by the North Carolina Medical Society. |
Contributor | Medical Society of the State of North Carolina. Transactions.; Medical Society of the State of North Carolina.; North Carolina Medical Society.; North Carolina Medical Society. Transactions.; North Carolina Public Health Association. Proceedings. |
Publisher | [Winston-Salem] : North Carolina Medical Society [etc.], 1940- |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1941 |
Identifier | NCHH-17-002-0089 |
Form General | Periodicals |
Page Type | all; all images; x-ray; article |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Filename | northcarolinamed21941medi_0089.jp2 |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 2 |
Issue Number | 2 |
Page Number | 81 |
Health Discipline | Medicine |
Full Text | Fig:. 1. Simple silicosis (second stage). Notice the symmetrical, discrete nodulation. This patient was a feldspar miner for fifteen years. He had no symptoms. Fig. 2. Advanced silicosis with spontaneous pneumothorax. This film is that of a colored male, aged 24 years. He worked as a sand blaster in a granite cutting shed approximately s’x years without any dust control measures. He was exposed to high concentrations of sand and granite dust. The film shows bilateral nodulation, conglomerate shadows, emphysema and a localized area of spontaneous pneumothorax. He died a few weeks after this film was made. Autopsy showed advanced silicosis. No tuberculosis was found. the form of concentric whorls known as silicotic nodules. Eventually, if the dust exposure is heavy, there is partial blockage of the lymphatics. Some of the wandering cells enter the parenchyma and cause the formation of nodules there also. Then we have the typical picture of simple silicosis—namely, numerous discrete nodules, symmetrically distributed through both lungs. Fortunately, most cases come under this classification. There is, however, a second type known as massive conglomerate silicosis. Here we may have massive conglomerate shadows occurring bilaterally and usually on a background of nodulation. As a rule these cases show marked emphysema. The etiology here is not clear, but Gardner states that in about 60 per cent of autopsies in this group he has been able to find evidence of tuberculosis. He feels that, in these cases at least, the massive type of lesion is probably accounted for by the combination of silicosis and tuberculosis. For the remaining 40 per cent he has no satisfactory explanation. In my own experience I have gained the impression that I massive lesions occur most frequently among those workers exposed to high concentra- Fig. 3. Silicosis and tuberculosis. This film is that of a molder in an iron foundry for fifteen years. His symptoms were productive cough and loss of weight and strength. The sputum was positive for tubercle bacilli. He did not respond to sanatorium treatment. Autopsy revealed silicosis and tuberculosis. tions of dust having a high free silica content. A third group of silicotics comprises those with pulmonary infection. Silicosis seems to favor the development of tuberculosis, which is by far the most frequent and serious complicating infection. Its appearance may range from small coalescing shadows on a background of simple nodulation to massive shadows involving the greater part of both lungs. Usually the development of such lesions is very gradual. The discrete nodulation of simple silicosis does not cause symptoms, and therefore is usually discovered in routine industrial surveys. The massive type with the emphysema that usually accompanies it may cause disabling dyspnea and cough, but it is not unusual to see workers with such lesions carrying on their usual occupations with only mild symptoms. The third type, silicosis with infection, comprises only a small percentage of the total number of cases of silicosis; but it is the most important, because most of the disability and deaths occur in this group. The course of tuberculosis, the most frequent infection complicating silicosis, is usually chronic, and patients do not exhibit the toxic symptoms that ordinarily accompany uncomplicated tuberculosis. Quite often the only complaints are dyspnea and cough, resulting in a decreased capacity for work. Weakness, loss of weight and fever are frequently late symptoms. February, 1941 PNEUMOCONIOSIS—EASOM |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-17/nchh-17-002.pdf |
Document Sort | all; nchh-17 |
Article Title | Pneumoconiosis |
Article Author | H. F. Easom |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-17-002 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-17 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1306322 |
Revision History | done |
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