Background: Neck lesions include inflammatory, congenital, benign neoplastic, and malignant conditions, and early characterization guides management. Objective: To evaluate the diagnostic performance of ultrasonography in neck lesions and correlate findings with cytopathology and histopathology. Methods: This is a prospective, cross-sectional study that will be carried out in a tertiary-care teaching hospital between May 2024 and October 2025. A total of 53 patients with clinically suspected nec