Occult Follicular Thyroid Carcinoma Presenting As Chest Wall Swelling - A Case Report

Distant metastasis from differentiated thyroid carcinoma is a rare manifestation. Follicular thyroid cancer rarely manifests itself as a distant metastatic lesion. [1]. We report a 67 year old woman with no history of thyroid disorders referred for lump over the chest wall with clinical diagnosis of carcinoma of the right breast. The microscopic needle examination of the chest wall swelling showed thyroid follicular cells. The clinical examination of neck was not significant but neck ultrasound demonstrated a solitary nodule in the right lobe of the thyroid. US guided fine-needle aspiration of the thyroid nodule confirmed follicular neoplasm. Subsequent CT chest and abdomen revealed a mass lesion eroding the rib with liver metastasis. This case of follicular thyroid cancer is reported because of its uncommon initial presentation with chest wall metastasis