Thyroid Carcinoma, Nonmedullary, with or Without Cell Oxyphilia, also known as thyroid carcinoma, nonmedullary, with cell oxyphilia, is related to thyroid cancer and thyroid cancer, nonmedullary, 1. An important gene associated with Thyroid Carcinoma, Nonmedullary, with or Without Cell Oxyphilia is TCO (Thyroid Carcinoma, Nonmedullary, With Cell Oxyphilia). Affiliated tissues include thyroid.