Anaplastic thyroid carcinoma is often rapidly growing and therefore large when diagnosed. The frequently elderly patient, therefore, has different symptoms [6,7]. At the time of presentation anaplastic carcinoma is often infiltrating and inoperable. The tumors are often derived from papillary or follicular carcinomas, and may contain both papillary and anaplastic carcinoma cells . Therefore, it may be impossible to distinguish between these tumors in the ultrasound examination. Clinical history, symptoms, and signs are of utmost importance. It is usually necessary to perform a computed tomography examination to assess the extension of the tumor.
KeywordsClinical History Papillary Thyroid Carcinoma Papillary Carcinoma Compute Tomography Examination Left Lobe
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