LAM lung disease (lymphangioleiomyomatosis) is a rare lung disease that tends to affect women of childbearing age.
In LAM lung disease, muscle cells that line the lungs' airways and blood vessels begin to multiply abnormally. These muscle cells spread into areas of the lung where they don't belong.
The air sacs in the lung also swell and form small pockets called cysts. As the cysts develop throughout the lungs, LAM causes breathing problems similar to emphysema.
The muscle cells can spread...