Abstract
Collision tumour of the thyroid is a rare entity for which surgical resection is the primary treatment. We present here a case of a collision thyroid tumour of oncocytic and papillary carcinoma with lung metastases occurring in a 62-year-old woman who initially presented with a rapidly enlarging cervical mass and dyspnoea. The patient had extensive venous tumour thrombosis in the internal jugular and subclavian veins. The patient received six cycles of combined chemotherapy with nedaplatin and paclitaxel which significantly reduced the size of the metastases in the lungs. Following discharge from the hospital, the patient was treated with oral anlotinib and at 14 months follow up she had not experienced any serious side effects and the metastases in her lung and thyroid surgery areas were well controlled.