Images by Genevieve Carbonatto
Both a polyp and a stone can be seen in the ballbladder. This is best visualised when panning through the gallbladder rather than with a still image
The stone casts a shadow, the polyp does not. While the stone is in the most dependent portion of the gallbladder , the polyp appears in the fundus of the GB
The polyp is less echogenic than the stone, does not cast a shadow and does not move when the patient is rolled into the left lateral position.
Thankyou Bahis. Being able to identify stones is so helpful in the patient who presents with abdominal pain in the ED.
Thank you for your comment Christina. Understanding the physics of ultrasound will improve image optimization and comprehension of artifacts. It is so important!