%0 Case Reports %T Lymphoma and Differentiated Thyroid Cancer: A Case Series. %A Sherief A %A Thambi SM %A Susan Joy Philip D %A Menon A %A A S %J Cureus %V 15 %N 1 %D Jan 2023 %M 36874657 暂无%R 10.7759/cureus.34429 %X Occurrences of lymphoma and differentiated thyroid cancer are rare. Usually, involvement of the thyroid gland is seen as a part of extranodal involvement or as a part of radiation-induced malignant transformation in previously treated lymphoma patients. The incidence of synchronous hematological malignancy with differentiated thyroid cancer is 7%. The synchronous occurrence of differentiated thyroid cancer and lymphoma poses a significant diagnostic and treatment dilemma. Here we report a case series of four patients with lymphoma and differentiated thyroid cancer. All four patients had lymphoma treated first followed by definitive management of thyroid malignancy.