LYMPH SYSTEM OF THE THYROID GLAND AND SPECIFICS OF LYMPHOGENiC METASTASIZING OF THYROID CANCER

摘要

Findings are analyzed dealing with the specifics of lymphogenic metastasizing of thyroid cancer (TC). A dense net of lymphatic capillaries in both parts of the thyroid gland is a factor of intra-organ metastasizing and necessitates thyreoidectomy. Though the prognostic role of metastases in regional lymph nodes (especially in papillar and medullar TC) has been doubted for a long time, it is established currently. This means that an anatomic/pathologic/ surgery classification of the zones of lymph outflow should be applied. In this, 4pools (compartments) with different frequency of metastasizing are identified, including: cervical/central (42-86%), ipsilateralcervicolateral(32-68%), counterlateral cervicolateral (12-24%), and mediastinal (3- 20%). The specifics of metastasizing of different morphologic forms of TC are analyzed.