Publication:

A case of papillary thyroid cancer with soft tissue metastasis

Papillary thyroid cancer is the most common thyroid malignancy, and although metastatic spread is typically confined to regional lymph nodes, there are rare documented cases of distant spread of disease. Distant metastases of differentiated thyroid cancer are unusual; lung and bones are the most frequently affected sites. Soft tissue metastases are extremely rare. Here we present an unusual case of soft tissue metastasis of papillary thyroid cancer to skeletal muscle. Soft tissue metastasis is rarely seen in differentiated thyroid carcinoma. Differentiated thyroid carcinoma, although generally clinically indolent, may occasionally develop distant metastases and even manifest itself as a metastatic tumour.