Mixed dust pneumoconiosis occurring in an unusual setting

Research studies on wood smoke and other air pollution.

Mixed dust pneumoconiosis occurring in an unusual setting

Postby Wilberforce » Mon Dec 02, 2013 8:33 pm

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Mixed dust pneumoconiosis occurring in an unusual setting
Sunil Vallurupalli1,Kabu Chawla1,Yizhak Kupfer1,Sidney Tessler2
http://casereports.bmj.com/content/2013 ... 0976.short
Summary

Mixed dust pneumoconiosis secondary to domestic wood smoke exposure is a cause of pneumoconiosis in women from developing countries, but is rarely seen in the USA. An elderly female non-smoker, who immigrated to the USA from Pakistan 10 years previously, presented with a worsening non-productive cough and dyspnoea on exertion. She did not have any occupational or environmental exposures other than utilising firewood for cooking while living in Pakistan. Radiographs revealed multiple bilateral pulmonary nodules associated with hilar and mediastinal adenopathy. A video-assisted thoracoscopic biopsy revealed ill-defined nodules in a perivascular subpleural deposition, carbon pigment deposition around the terminal bronchioles, dust macules and negatively birefringent needles on polarised light microscopy with mixed dust nodules outnumbering the silicotic nodules consistent with mixed dust pneumoconiosis. This case illustrates the need for awareness of this condition among physicians caring for women who lived in areas where biomass exposure is common.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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