Question: What is (are) Thymoma and Thymic Carcinoma ?
Answer: Key Points - Thymoma and thymic carcinoma are diseases in which malignant (cancer) cells form on the outside surface of the thymus. - Thymoma is linked with myasthenia gravis and other autoimmune diseases. - Signs and symptoms of thymoma and thymic carcinoma include a cough and chest pain. - Tests that examine the thymus are used to detect (find) thymoma or thymic carcinoma. - Thymoma and thymic carcinoma are usually diagnosed, staged, and treated during surgery. - Certain factors affect prognosis (chance of recovery) and treatment options. Thymoma and thymic carcinoma are diseases in which malignant (cancer) cells form on the outside surface of the thymus. The thymus, a small organ that lies in the upper chest under the breastbone, is part of the lymph system. It makes white blood cells, called lymphocytes, that protect the body against infections. There are different types of tumors of the thymus. Thymomas and thymic carcinomas are rare tumors of the cells that are on the outside surface of the thymus. The tumor cells in a thymoma look similar to the normal cells of the thymus, grow slowly, and rarely spread beyond the thymus. On the other hand, the tumor cells in a thymic carcinoma look very different from the normal cells of the thymus, grow more quickly, and have usually spread to other parts of the body when the cancer is found. Thymic carcinoma is more difficult to treat than thymoma. For information on thymoma and thymic carcinoma in children, see the PDQ summary on Unusual Cancers of Childhood Treatment. Thymoma is linked with myasthenia gravis and other autoimmune diseases. People with thymoma often have autoimmune diseases as well. These diseases cause the immune system to attack healthy tissue and organs. They include: - Myasthenia gravis. - Acquired pure red cell aplasia. - Hypogammaglobulinemia. - Polymyositis. - Lupus erythematosus. - Rheumatoid arthritis. - Thyroiditis. - Sjgren syndrome.
Source: CancerGov