This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid, Subject name: Surgery
[{'content': 'In a patient presenting with swelling of the thyroid, the radionuclide scan showed a cold nodule and the ultrasound showed a non-cystic solid mass. The management of this patient would be: \nSelect and explain. \nA. Lobectomy, B. Hemithyroidectomy, C. Propylthiouracil, D. Radioactive iodine ablation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: - Areas that trap less radioactivity than the surrounding gland are termed as COLD - Whereas areas that demonstrate increased activity are called HOT. - Risk of malignancy: Hot - < 5% Cold - 20 % - USG findings within a nodule that are considered suspicious for malignancy include - microcalcification, hypervascularity, infiltrative margins, being hypoechoic, shape taller than wide on transverse view. - Thus, management of the above case - hemithyroidectomy. Management- For Solitary thyroid nodule, using FNAC, it can be either', 'role': 'assistant'}]