Incidence of Malignancy in Multinodular Goiter in Rizgary Teaching Hospital

Abstract

Background and objectives: Multinodular goiters have recently been indicated to have an incidence of cancer that approaches that of solitary thyroid nodule. The objective of this study was to determine the incidence and the types of various thyroid malignancies in multinodular goiters in Rizgary Teaching Hospital. Methods:A retrospective study of 328 consecutive patients with multinodular goiter underwent thyroidectomy at a Rizgary Teaching Hospital in Erbil from May 2013 to Nov 2017. All saved histopathological reports were collected for the patients based on age, sex of the patients with the histopathological results from the histopathological reports. The patients with histopathological report of thyroiditis & solitary thyroid nodule were excluded from the study. Results: A final pathologic diagnosis of malignancy was found in 12 of 328 (3.7%) of multinodular goiters patients. Larger number of the malignant tumors was found in female patients 11(91.7%). Most common type of malignant tumors was papillary carcinoma 11 (91.7%) of which 10 cases were found in females (90.9%). Conclusions:We conclude that the incidence of malignancy in mul- tinodular goiters is 3.7% in our patients. The Incidence of malignant tumors in multinodular goiter in female patients is significantly higher than in male patients. The commonest type of malignant tumors in multinodular goiters was papillary carcinoma.