Medullary Thyroid Cancer with Normal Serum Calcitonin and Tubercular Neck Nodes: A Rare and Challenging Presentation

Abstract

with Normal Serum Calcitonin and Tubercular Neck Nodes: A Rare and Presentation. 2021;13(2):61–63. We report a highly unusual case of medullary carcinoma thyroid with normal serum calcitonin and tuberculous lymphadenitis mimicking metastatic neck nodes. A 26-year-old married woman was diagnosed with sporadic medullary carcinoma of thyroid on fine needle aspiration cytology (FNAC). Preoperative ultrasonography (USG) and contrast-enhanced computed tomography (CECT) neck suggested a metastasis in level IIB neck nodes. Patient underwent total thyroidectomy with central neck dissection with right modified neck dissection type III. Final histopathological report revealed medullary carcinoma thyroid (MTC) with tubercular lymphadenitis, none of 47 nodes retrieved had metastasis. She remains disease free after 2 years following surgery.