Radiology Hot rim sign on hepatobiliary scintigraphy (Tc99m-HIDA ) is seen in ? A Chronic cholecystitis B Biliary Atresia C Gangrenous Cholecystitis D Porcelain GallBladder 💡 Explanation Hot rim sign on hepatobiliary scintigraphy (Tc99m-HIDA ) is seen in ? ✓ Correct Answer: C. Gangrenous Cholecystitis