Solitary iliac bone metastasis: Unusual presentation of follicular thyroid carcinoma diagnosed by fine needle aspiration cytology

A 47-year-old woman presented with pain in the right hip region. Radiograph revealed solitary osteolytic lesion in the right iliac bone. Fine Needle Aspiration Cytology (FNAC) diagnosed it as a metastasis of follicular thyroid carcinoma (FTC). Thyroid gland was clinically without any apparent disease. This case is presented to highlight unusual clinical presentation of FTC which is confused with primary bone tumor. Early diagnosis by FNAC is essential for better prognosis.