Metastatic Papillary Thyroid Microcarcinoma (PTMC) to Bone
Keywords:
Papillary carcinoma, thyroid glands, lymph nodes, lymphatic metastasisAbstract
The classic description of papillary thyroid carcinoma (PTC) is that it is benign; particularly in lesions less than 1 cm. However, it is often observed that patients with aggressive diseases suffer from local, regional, and/or distant relapse. A recent proposal for pathology classification is the term papillary thyroid micro tumor (PMiT), which corresponds to a lesion less than 1 cm. and which does not have histopathological risk factors previously designated as papillary thyroid microcarcinoma (PTMC). A 49-year-old male patient sought treatment at the National Cancer Institute (NCI) for pathological fracture in the left femur. Bone biopsy confirmed metastatic papillary carcinoma of thyroid origin; thus leading to total thyroidectomy. His final diagnosis was PTMC. Due to the fact that this was a rare case, it is the subject of this report which also focuses on the new classification for papillary thyroid tumors.
Author Biographies
Enrique Cadena, Instituto Nacional de Cancerología
Grupo de Cirugía de Cabeza y Cuello, Instituto Nacional de Cancerología, Bogotá D. C., Colombia
Unidad de Otorrinolaringología, Universidad Nacional de Colombia, Bogotá D.C., Colombia
Alfredo E. Romero, Instituto Nacional de Cancerología
Grupo de Patología, Instituto Nacional de Cancerología, Bogotá D. C., Colombia
Andrey Moreno, Instituto Nacional de Cancerología
Grupo de Cirugía de Cabeza y Cuello, Instituto Nacional de Cancerología, Bogotá D. C., Colombia
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