부산대학교 도서관

Thyroid lymphomas are rare, accounting for less than 2% of thyroid malignancies. We report a rare case of a 54-year-old female patient presenting with right neck enlargement and subsequent subtotal thyroidectomy showing lymphoma in the left lobe of thyroid. The patient presented initially with neck enlargement and dysphagia. Physical examination revealed a goiter measuring about 2 cm over the right anterior neck. Thyroid function test was normal. Ultrasonography of thyroid revealed multiple hypoechoic lesions bilaterally, with the largest measuring 19mm in the right lobe. Fine needle aspiration revealed follicular lesions. The patient underwent right total lobectomy, with pathology showing Hashimoto's thyroiditis, and left subtotal lobectomy, showing a 2 cm tan gray lesion with histopathology consistent with malignant lymphoma, diffuse large B-cell type. The patient recovered very well postoperatively, and was referred to hematology for further evaluation and treatment.