Unusual Oral Cavity Metastasis From Follicular Carcinoma Of The Thyroid – A Case Report

Metastatic tumours in the oral cavity are relatively uncommon and account for 1% of all oral malignancies. The breast, the lung and the kidney are the common primary origin of metastasis. Metastasis to the oral cavity from a thyroid malignancy is very rare and cases described in literature are very few. We report a case of 70 year old lady who presented with a soft tissue swelling in the oral cavity without any other significant clinical findings. Ultrasound of the neck showed a very small anechoic area in the left lobe of thyroid. Fine needle aspiration cytology from both lesions showed malignant cells with follicular pattern.