Neodymium is never found in nature as a free element, but rather it occurs in ores such as monazite and bastnÃ¤site that contain small amounts of all the rare earth metals. The main mining areas are in China, the United States, Brazil, India, Sri Lanka, and Australia.
Polycystic Kidney Disease. Polycystic kidney disease (also called PKD) causes numerous cysts to grow in the kidneys. These cysts are filled with fluid. If too many cysts grow or if they get too big, the kidneys can become damaged. PKD cysts can slowly replace much of the kidneys, reducing kidney function and leading to kidney failure.
Here are some key points about cysts. More detail and supporting information is in the main article. 1  Cysts are noncancerous and have a sac-like structure that can be filled with fluid, pus, or other gaseous material. 2  Cysts are common and can occur anywhere on the body.3  Cysts are often caused by infection, clogging of sebaceous glands or around earrings. Cysts are common and can occur anywhere on the body. 2  Cysts are often caused by infection, clogging of sebaceous glands or around earrings. 3  It is unusual for cysts to cause pain unless they rupture, become infected or inflamed.