Sediment Rate (ESR): The distance red blood cells travel in one hour in a sample of blood as they settle to the bottom of a test tube. The sedimentation rate is increased in inflammation, infection, cancer, rheumatic diseases and diseases of the blood and bone marrow. Also called Erythrocyte Sedimentation Rate.

Solid Tumors: An abnormal mass of tissue that usually does not contain cysts or liquid areas. Solid tumors may be benign (not cancerous), or malignant (cancerous). Different types of solid tumors are named for the type of cells that form them. Examples of solid tumors are Sarcomas, Carcinomas and Lymphomas.

Stable Disease: No new tumors or tumors present have not grown.

Stage 1 Kidney Cancer: The tumor is 7 centimeters or smaller and is found in the kidney only. Also called Stage 1 Renal Cell Cancer.

Stage 2 Kidney Cancer: The tumor is larger than 7 centimeters and is found in the kidney only. Also called Stage 2 Renal Cell Cancer.

Stage 3 Kidney Cancer: Cancer is found in either (1) the kidney and in 1 nearby lymph node; or (2) an adrenal gland or in the layer of fatty tissue around the kidney, and may be found in 1 nearby lymph node; or (3) the main blood vessels of the kidney and may be found in 1 nearby lymph node. Also called Stage 3 Renal Cell Cancer.

Stage 4 Kidney Cancer: Cancer has spread (1) beyond the layer of fatty tissue around the kidney and may be found in 1 nearby lymph node; or (2) to 2 or more nearby lymph nodes; or (3) to other organs, such as the bowel, pancreas, or lungs, and may be found in nearby lymph nodes. Also called Stage 4 Renal Cell Cancer.

Steriotactic Body Radiation Therapy:
A radiation therapy technique that uses special equipment to position the patient and precisely deliver a large radiation dose to a tumor and not to normal tissue.

Steriotactic Radiation Therapy: A radiation therapy procedure that uses special equipment to position the patient and precisely deliver a large radiation dose to a tumor and not to normal tissue. This procedure does not use surgery. It is used to treat brain tumors and other brain disorders. It is also being studied in the treatment of other types of cancer, such as lung cancer. Also called Radiation Surgery, Radiosurgery, Stereotactic, External-Beam Radiation and Stereotactic Radiosurgery.

Sutent: A drug used to treat advanced kidney cancer and is being studied in the treatment of other cancers. It belongs to the families of drugs called Tyrosine Kinase Inhibitors, Vascular Endothelial Growth Factor (VEGF) Receptor Inhibitors, and Angiogenesis Inhibitors. Also called Sunitinib, SU11248 or SU011248.

Survival Rate: The percentage of people in a study or treatment group who are alive for a given period of time after diagnosis. This is commonly expressed as
5-year survival.
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