Endocrine Abstracts

Introduction: Anaplastic thyroid carcinoma is a subtype of thyroid carcinomas with an aggressive form. Anaplastic thyroid carcinomas are thought to develop as a result of differentiation of well-differentiated thyroid cancers. Anaplastic transformation of well-differentiated papillary thyroid carcinoma is very rare and most commonly occurs in thyroid gland and regional lymph nodes, whereas occurrence at distant metastatic site is extremely rare. Here we report the case of a pa...