Bethesda system 2017 for reporting thyroid cytology – Changes and challenges an institutional experience
Journal Title: Medpulse International Journal of Pathology - Year 2018, Vol 8, Issue 2
Abstract
Context: The reporting format and terminologies used in thyroid cytology have varied ranging from the use of two categories schemes to six or more categories schemes. To address these issues the National Cancer Institute (NCI) in 2007, organized the NCI thyroidfine-needle aspiration state of the science conference which proposed a 6 tier system named The Bethesda system for reporting thyroid cytopathology (TBSRTC). Materials and Methods: The current study was undertaken in a teaching hospital of Bengaluru city. The study was a retrospective and the data was collected for a period of one year from April 2017 to March 2018. Results: A total of176cases presented to the FNAC clinic for thyroid nodules. Histopathological correlation was available in 57 out of the 176 cases who presented to the FNAC clinic. A majority of the patients were Females (85%). Thyroid nodules were most common in the age group of 21-50 years. The cases were classified as per Bethesda system of reporting Thyroid Cytology 2017. Eighteen percent cases were of the Bethesda Category I. Within the Bethesda Category II, 30 cases of Lymphocytic thyroiditis were noted while 97 cases were reported as Multinodular goitre. Bethesda Category III (Follicular lesion of Undetermined Significance) was reported in four cases Three cases of Follicular neoplasm / Suspicious for Follicular Neoplasm (Category 4) were noted in the present study. Another four cases had features suspicious for Papillary Carcinoma (Category 5). Within the Bethesda Category 6, four cases of Papillary Carcinoma and a single case of Anaplastic Carcinoma was noted. Bethesda system of reporting thyroid cytopathology brings an element of uniformity in reporting. Conclusion: A significant risk of malignancy exists in Category 3 and warrants that these lesions be followed up judiciously by repeat FNAC. Excluding NIFTP as a malignancy has brought down the risk of malignancy in Bethesda Class II.
Authors and Affiliations
Zubair Hasan, Rashmi Verma
Keywords
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- EP ID EP457197
- DOI 10.26611/105829
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