Regional Lymph Node Metastases
Regional lymph node metastases are a common finding in papillary and medullary carcinomas, but they are very rare in follicular carcinoma because this tumor usually spreads hematogenically. Lymph node affection is often seen in thyroid lymphomas, and reactive lymph nodes are found in thyroiditis. Reactive lymph nodes are usually enlarged, but metastatic infiltration does not necessarily cause enlargement. Thus, lymph node size is not a reliable criterion in the differential diagnosis [6,23].
KeywordsThyroid Carcinoma Papillary Thyroid Carcinoma Regional Lymph Node Metastasis Neck Lymph Node Medullary Carcinoma
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