Introduction Fine Needle Aspiration Cytology (FNAC) is widely used in the evaluation of breast lesions because of its simplicity, rapidity, and cost-effectiveness. However, proliferative and atypical breast lesions often show overlapping cytomorphological features, leading to diagnostic gray zones and cytohistological discordance. The Modified Masood Scoring Index (MMSI) was introduced to improve objectivity and accuracy in breast cytology reporting. Aim To evaluate cytohistological discordance
