Classic Imaging Signs in Hepatobiliary Radiology: A Multimodality Review.

Classic radiological signs in imaging serve as visual clues that aid in narrowing the differential diagnosis and enhancing diagnostic confidence. This review article highlights key imaging signs encountered in hepatic pathology across multiple modalities including ultrasound, CT, and MRI. We explore some of the characteristic signs associated with hepatic neoplastic, infectious, vascular lesions, anatomicvariations and miscellaneous conditions, discussing their pathophysiology, diagnosticutility and clinical relevance. By revisiting these classic signs, radiologists can reinforce pattern recognition skills essential for accurate interpretation. This article aims to serve as a practicalreference and educational resource for radiologists, trainees and clinicians involved in hepatic imaging.