Foods that have roughly the same number of calories from fats, calories, and protein will be found closer to the center of the pyramid. Read more about the Caloric Ratio Pyramid. Caloric Ratio Pyramid for Grapefruit, raw, pink and red, all areas. This feature requires Flash player to be installed in your browser.
Causes of Pleural Thickening. Pleural thickening is a condition of the lungs that is most often caused by the long term exposure and inhalation of asbestos particles which then settle on the pleura, or pleural membrane (the thin area surrounding the lungs) causing the area to thicken, calcify and/or scar.
Pleural Thickening. On this page: Pleural thickening is the term used to describe the appearance of diffuse (widespread) scarring along the lining (pleura) of the lungs. When this pleural scarring (pleural fibrosis) is limited to one location (focal scarring) it is called pleural plaque.