Study of 140 Thyroidectomy Patients to Find Out the Incidence of Thyroid Malignancy in Thyroid Swelling

Objective: To compare FNAC with histopathology reports and to find out the true incidence of thyroid malignancy in thyroidectomy patients presenting with thyroid swelling. Materials & Methods: This is a prospective study of 140 thyroid swelling patients underwent thyroid surgery done at Matin Specialized Hospital, Bogura from January 2016 to July 2019. FNAC and histopathology reports were studied to find out the incidence of benign and thyroid malignancy among the thyroid swelling. Results: The age of the patients ranged from 6 to 70 years. The mean age was 38.6 years. There were 110 female and 30 male patients with female male ratio 3.6:1. Diagnostic categorization of 140 thyroid swelling underwent surgery, FNAC s based on Bathesda classification showed that 110 (79.28%) cases were cytologically benign, 25 (17.85%) cases were malignant category. Out of 140 cases histopathology showed 94 cases (67.14%) are benign and 46(32.85%) are malignant thyroid swelling. Among the benign lesions 90.42% is colloid goitre and among the malignant lesions 91.3% are papillary thyroid carcinoma. Conclusion: Although FNAC is an essential diagnostic test to rule out thyroid malignancy but histopathologial examination is the only way to give true incidence of thyroid malignancy among the thyroid swelling and it is observed that there is high incidence of thyroid malignancy (32.85%) among the thyroid swelling patient.