Background: Primary lymphoma is an uncommon malignancy of the thyroid gland, accounts between 1– 5% of all thyroid cancers and 1 to 2% of all lymphomas outside the lymph nodes. Methods: We report a case of a 43 year old woman presented with recurrent thyroid swelling, diagnosed as thyroidlymphoma. Result: A 43-year-old female presented to hospital with thyroid swelling, on physical examination, a palpable firm nodule, sized 3 x 2.5 cm, was noted over thyroid gland. Thyroid ultra sonograms showed enlarged thyroid lobes with hypervascularity and centraltrachea. The patient was euthyroid in laboratory findings. The result of the fine-needle aspiration cytology study was malignant lymphoma. The diagnosis was confirmed by histopathological samples from open biopsy. Conclusion: Thyroid lymphoma is an uncommon tumor which requires prompt diagnosis and early intervention.
