Authors
Department of Pathology, Al-Imamain Al-Kadhmain Medical City, Baghdad, Iraq
,
Document Type : Research Paper
Abstract
ABSTRACT:
BACKGROUND:
The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) was introduced to standardize terminology used in reporting thyroid cytology. The Bethesda system used six categories for thyroid cytology reporting. Each diagnostic category is linked to a certain risk of malignancy and recommended clinical management.
AIMS:
To evaluate FNAC in thyroid nodules based on the Bethesda system for thyroid cytopathology.
SETTINGS AND DESIGN:
A cross-sectional study.
METHODS AND MATERIAL:
Study conducted in Al-Imammain Al-Kadhimian (AS) Medical City in period from 1st Jan 2019 – 1st August 2019. We performed FNAC either directly or under U/S guide, and all slides were examined by one cytopathologist and residents of histo- cytopathology.
RESULTS:
There were 357 patients who enrolled in this study. Their mean age was 44.25 ± 13.49 years. Female patients represent 88.8% of total patients with male to female ratio is 1:6. The non-diagnostic sample (Bethesda I) was found in 66 (18.5%) patients, the benign thyroid lesion (Bethesda II) was found in 217 (60.8%), atypia of undetermined significance (Bethesda III) was found in 34 (9.5%), follicular neoplasm or suspicious for follicular neoplasm (Bethesda IV) was found in 38 (10.6%), and suspicious for malignancy (Bethesda V) was found in 2 (0.6%), while no case was diagnosed with malignancy (Bethesda VI). The higher value of TSH is associated with lower Bethesda score; also, the higher value of T4 is associated with lower Bethesda score too. There were 16 (4.5%), 74 (20.7%), 10 (2.8%), and 11 (3.1%) of patients that presented with nodular surface of thyroid gland that were diagnosed with I, II, III, and IV Bethesda system respectively.
CONCLUSION:
Bethesda system gave us a uniform terminology in reporting thyroid cytopathology. The most frequent category was category II. Thyroid nodules presented in older age group compared to other studies. Most of thyroid nodules are benign rather than malignant.
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