Subpleural anthracotic pigment is a type of pigmentation often found on the surface of the lungs. It is caused by long-term exposure to air pollution or other environmental factors. This type of pigmentation is usually found in people who live in heavily industrialized urban areas or near factories, power plants, and other sources of air pollution.
The pigment is made up of carbon particles that have become lodged in the pleura, the thin membrane that lines the lungs. This type of pigmentation is usually seen on the lower parts of the lungs near the diaphragm, and it appears as black or dark gray patches.
Subpleural anthracotic pigment can be seen on various imaging tests such as chest X-rays, CT scans, and fluoroscopy. This type of pigmentation can be used to diagnose various respiratory conditions, such as chronic bronchitis, emphysema, COPD, and pulmonary fibrosis.
Treatment for subpleural anthracotic pigment is not necessary since it is not considered a medical concern. However, it is important to reduce exposure to air pollution and other environmental toxins to prevent further development of the pigmentation. Additionally, avoiding smoking and avoiding certain medications and foods can help to reduce the risk of developing subpleural anthracotic pigment.