We report a case of non-Hodgkin's lymphoma(NHL) with simultaneous involvement of both thyroid and bilateral adrenal glands. Literature review on a computerized search showed that this is an extremely rare condition. The final diagnosis of diffuse large B cell lymphoma was confirmed by biopsies of thyroid gland, enlarged cervical lymph node, and adrenal gland. The significant endocrine dysfunction of the thyroid, adrenal or other endocrine glands was absent in our case. The patient responded dramatically to three cycles of chemotherapy with no complication or endocrine dysfunction and continues to be followed.