1) A 38-year-old woman presented with a gradually enlarging solitary thyroid nodule in her neck over the past 3 years. She has no symptoms of hyperthyroidism or hypothyroidism.
2) On examination, a 4x4 cm smooth, firm, mobile nodule was found on the right side of her neck, which moves with swallowing but not tongue protrusion. No cervical lymphadenopathy or signs of thyroid toxicity were observed.
3) The provisional diagnosis was a solitary thyroid nodule that is likely benign given the absence of compressive symptoms or metastatic features, in an otherwise asymptomatic woman with diabetes.