WASHINGTON, D.C.Percutaneous ethanol injection (PEI)an injection of ethanol (alcohol) through the skin directly into a bone tumor to kill cancer cellsmay be a valuable ancillary treatment for thyroid cancer patients whose cancer has spread to the bone. Japanese researchers announced these findings during the 54th Annual Meeting of SNM, the world's largest society for molecular imaging and nuclear medicine.
"PEI may be a valuable adjunctive or secondary treatment to radioiodine therapy, and it may contribute to better management of thyroid cancer patients with bone metastasis," said Kunihiro Nakada, clinical assistant professor in the Department of Radiology at Hokkaido University Hospital and the hospital chief in the Department of Radiology at LSI Sapporo Clinic, both in Japan.
Reports indicate that this year about 33,550 new cases of thyroid cancer will be diagnosed in the United States, and of those, more than 25,000 will occur in women. Thyroid cancer is a disease in which cancer (malignant) cells are found in the tissues of the thyroid gland. The thyroid gland, located at the base of the throat, makes important hormones that help the body function normally. Cancer can spread beyond that site and invade other parts of the body (metastasis), and thyroid cancer is often listed among the top most common causes of metastatic bone lesions. The primary treatment for patients with thyroid cancer is surgery, which is followed by thyroid hormone therapy. Radioactive iodine may be used to destroy thyroid cancer cells after surgical removal of the thyroid gland.
"Although thyroid cancer generally has a favorable prognosis, bone metastasis can be hard to be eradicate," said Nakada. "Although radioiodine therapy and/or surgery are valuable therapeutic strategies, management of bone metastasis has been challenging since it is likely that bone metastasis will show resistance to radioiodine therapy or that a tumor cannot be surgically removed,"
Contact: Maryann Verrillo
Society of Nuclear Medicine