Sentinel Lymphnode in Patients With Papillary Thyroid Carcinoma and in Patients With Suspected Thyroid Neoplasia

The standard surgical treatment for highly differentiated papillary thyroid cancer \> 10 mm according to recent national and international guidelines, is total thyroidectomy and central lymphnode clearance, and for patients with cytology indicating thyroid neoplasia of unclear malignant potential hemithyroidectomy on the side of the tumour. The study investigates if the sentinel lymphnode (SN) * Reliably (with high sensitivity and specificity), can predict the pathological findings of the lymphnodes in the central compartment in patients with highly differentiated papillary thyroid cancer * Is useful to aid in the final diagnosis and staging of thyroid neoplasias of unclear malignant potential, and could be used to select patients for further central lymphnode revision.