@radiology101.channel: One of the very first concepts I teach radiology residents is that there are 3 classic echogenic substances on ultrasound: 🟡 Fat 💨 Gas 🪨 Calcium 🎁 Bonus: A hemangioma is one of the most common echogenic liver lesions you’ll encounter. If you can recognize these patterns, you’ll interpret ultrasound with much more confidence. 📚 This is one of the foundational pearls from Don’t Miss That Radiology—simple concepts that make a big difference. What other ultrasound basics would you like me to cover next? #Radiology #Ultrasound #POCUS #FOAMed #MedEd