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Indian Journal of Pathology and Oncology

Utility of British Thy system of reporting Thyroid FNAC smears in a tertiary hospital

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Author Details : Mallikarjun A. Pattanashetti, Ranjit P. Kangle, Hema B. Bannur

Volume : 4, Issue : 2, Year : 2017

Article Page : 213-217

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Introduction: Thyroid Fine Needle Aspiration (FNA) has been widely used as a first line investigation to assess thyroid nodules, as it is rapid, cost effective, safe and reliable. Thyroid cytology categories are required for coding, audit and comparison The RCPath system of thyroid cytopathology is a modification of the British Thyroid Association (BTA)/ RCP Thy1–5 systems. This study has been undertaken to evaluate the utility of Thy system while reporting thyroid FNACs in our hospital.
Materials and Method: A retrospective study was conducted from 2009 to 2015 in which 189 cases of thyroid aspirates were reclassified according to Thy in to five categories by cytologist.
Results: A total of 189 thyroid lesions were analysed. Category wise distribution of aspirates was Thy 1+ Thy 1c (Non- Diagnostic) 8 cases. Thy 2 + Thy 2c (Non Neoplastic) were 156 (86.19%). Thy 3a (Neoplasm possible – atypia/nondiagnostic) were 5 (2.77%), Thy 3f – (Neoplasm possible- Suggesting follicular neoplasm) were 9 (4.97%), Thy 4 (Suspicious for malignancy) were 2 (1.10%), Thy (Malignant) were 59 (4.97%) Age and sex wise distribution was interpreted. Thyroid diseases were more prevalent in women and most common age group affected was 3rd to 4th decade. Out of all cases 181 were satisfactory for evaluation. Among them 156 (86.19 %) were Non-neoplastic which included simple goitre, thyroiditis, toxic goitre and thyroid cysts. Malignant lesions were 9 which included papillary carcinoma, anaplastic carcinoma and medullary carcinoma.
Conclusions: It was observed that standardized nomenclature of the Thy System has brought much needed clarity in thyroid FNAC reporting in the UK .Hence this study was undertaken to know its utility in this region of country.

: Thy system; Thyroid; FNAC

How to cite : Pattanashetti M A, Kangle R P, Bannur H B, Utility of British Thy system of reporting Thyroid FNAC smears in a tertiary hospital. Indian J Pathol Oncol 2017;4(2):213-217

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