Surgery Which among the following is not a ultrasound feature of Congenital Hypertrophic Pyloric Stenosis? A 95% sensitivity by ultrasound B Thickness of pylorus > 4mm C Canal length > 16mm D High gastric residue 💡 Explanation Which among the following is not a ultrasound feature of Congenital Hypertrophic Pyloric Stenosis? ✓ Correct Answer: D. High gastric residue