Anaplastic Thyroid Carcinoma in Metastatic Lateral Cervical Neck Lymph Node. Case Report and Review literatures
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Introduction: Papillary thyroid carcinoma is one of the commonest human malignancies. It usually follows an indolent clinical course with localized disease and rare metastasis [1]. Anaplastic transformation of thyroid carcinoma although rare but is well-accepted phenomena. It goes through multiple steps of genetic alterations leading to an ultimate de-differentiation. Most of the anaplastic carcinoma occurs in the thyroid glands with very aggressive behavior and locally advanced disease [2]. Recently some case reports described the anaplastic transformation of thyroid carcinoma in a distant site. It occurred either synchronously or years after diagnosis of thyroid carcinoma.