Malignant thyroid teratoma in adults is a rare tumour with less than 40 cases reported worldwide. Our case is of a 29-year-old man who presented with a thyroid lump and compressive symptoms. He underwent multiple investigations before being diagnosed with a malignant thyroid teratoma. There are no established guidelines in the management of this tumour yet. In this case report, we discuss the diagnosis, treatment and follow-up of the patient and reflect on the published literature on this tumour.
Keywords: chemotherapy; endocrine cancer; head and neck surgery; radiotherapy; thyroid disease.
© BMJ Publishing Group Limited 2021. No commercial re-use. See rights and permissions. Published by BMJ.