COMPARISON BETWEEN ULTRASOUND, CYTOLOGY AND HISTOPATHOLOGY RESULTS OF GROUP III AND V THYROID LESIONS ACCORDING TO THE BETHESDA SYSTEM 2018

Abstract

Objective: Determine the relationship between ultrasound, cytological and his­topathological characteristics of group III and V thyroid lesions.

Subjects and Study methods: The cross-sectional and retrospective descriptive study was performed on 74 diagnosed cases of thyroid cytology as group III, V at the Department of Pathology, 175 Military Hospital from September 2019 to May 2020 with results of thyroid ultrasound and histopathological results.

Results: The comparison of suspect features on ultrasound with histopathologi­cal results found that the features height greater than width had the highest malignancy rate. At the same time, the difference in TIRADS resolution of thyroid nodules on ultra­sound between the two groups with benign and malignant histopathological results was statistically significant (p <0.05). Comparing the cytological results with histopathol­ogy shows that the malignancy rate of group V and III thyroid nodules is quite high (82.1% and 66.7%). In the group of benign histopathology, the folicullar thyroid ad­enoma accounts for about 50%, this type of lesion is indicated for surgery. Comparison ultrasound with cytology and histopathology showed that the thyroid nodules TIRADS 5 and diagnosis of group V cytology had the highest malignancy rate (59.44%).

Conclusions: Surgery indications for thyroid nodules should be considered with a diagnosis of group III cytology.