thymic carcinoma cell BTO:0001455 BrendaTissueOBO Thymic carcinoma is a disease in which cancer (malignant) cells are found in the tissues of the thymus. Thymic carcinoma is difficult to treat and generally spreads to other parts of the body. People with thymoma often have other diseases of the immune system, most commonly myasthenia gravis, a disease in which the muscles become weak. thymic cancer cell