Sterling silver contains 92.5% silver. The rest is copper or some other metal. It is used for jewellery and silver tableware, where appearance is important. Silver is used to make mirrors, as it is the best reflector of visible light known, although it does tarnish with time.
There are three types of pancreatic tumors. Insulinoma: This is a rare type of pancreatic tumor that secretes insulin, which lowers the levels of sugar in the blood. Research indicates that only 10% of insulinomas are cancerous. Surgery is the only option for survival of insulinoma and 90% success rate is assured.
islet cell tumors home page/ insulinoma/ gastrinoma/. surgery for islet cell tumors/ metastatic islet cell tumors. Islet cell tumors of the pancreas are rare tumors and approximately 2500 cases of pancreatic islet cell tumors are seen in the United States each year. These tumors are often also called pancreatic neuroendocrine tumors. Islet cell tumors of the pancreas are different from adenocarcinoma of the pancreas. These tumors are derived from neuroendocrine cells and tend to be slow growing tumors that are treatable even after they have metastasized.