Sialadenitis after radioiodine therapy. Analysis of factors that influence the response to medical treatment.

Objectives: To assess the incidence of 131I-induced sialadenitis (SD) in patients with differentiated thyroid cancer (DTC), to analyze clinical and other factors related to metabolic radiotherapy that may predict the lack of response to conventional medical therapy (CMT), and to determine the effectiveness of intraductal steroid instillation in patients failing CMT.

Material And Methods: Fifty-two patients with DTC, 45 females (86.5%) and 7 males (13.