Pattern of Nodal Metastasis in Relation to Size of the Primary Tumour in Well-Differentiated Thyroid Carcinoma.

This study was conducted to see the pattern of neck node metastasis in relation to the size of primary tumour in Well-differentiated thyroid cancer. A prospective study on 50 patients was carried out in the Department of Head and Neck Surgery, Dr B. Borooah Cancer Institute from 1st August, 2018 to 31st July, 2019. All new cases who had not previously received treatment were included which were histopathogically proven. Residual and recurrent cases were not taken into account. Most common age-group affected was 21-30 years (24%). It was more common in females (84%). Papillary thyroid cancer has been found to be the most common histological type of WDTC (88%), out of which the classical variant of PTC constitute 72%. 46% of them had tumour size > 4 cm 88% cases had cervical neck node metastases, out of which 72% were unilateral and 16% were bilateral. The commonest level involved was level VI. There is a definite correlation (clinical and histological) between increased involvement of positivity of lymph node in relation to size of the primary tumour in well-differentiated thyroid carcinoma.