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.
Kidney cysts are benign sacs of fluid that develop inside the kidneys. They are not the same as cysts that form with polycystic kidney disease, which is a genetic condition. The cause of simple kidney cysts is not known, and they are more common in older people. Simple kidney cysts may not cause symptoms.Occasionally, however, a kidney cyst can cause pain, infection or bleeding.In rare cases, simple kidney cysts can interfere with proper kidney function.he cause of simple kidney cysts is not known, and they are more common in older people. Simple kidney cysts may not cause symptoms. Occasionally, however, a kidney cyst can cause pain, infection or bleeding.