Diagnostic Accuracy of the International Academy of Cytology Yokohama System versus the Modified Masood's Scoring Index in Categorization and Diagnosis of Palpable Breast Lesions.

Introduction: Fine-needle aspiration cytology (FNAC) is a simple, minimally invasive, and effective tool that can be used to accurately diagnose benign and malignant lesions of the breast. The International Academy of Cytologists Yokohama system and Modified Masood's Scoring Index (MMSI) are two important systems to categorize palpable breast lesions on FNAC. The goal of the present study was to evaluate the IAC Yokohama system and MMSI in the cytological diagnosis and classification of diverse breast lesions and to compare the diagnostic accuracy of both systems through cyto-histological correlation.