Case 12 Answer

Answer: comet-tail artifact of GB Adenomyomatosis

You tend to get a little GB wall thickening with hyperechoic foci in the wall with the classic comet-tail artifact (similar to ring-down from air bubbles). The artifact is from cholesterol deposition in the famed Rokitanksy-Aschoff sinuses.

Note: this is an incidental finding and should not relate to patient’s symptoms

ref: https://radiopaedia.org/articles/adenomyomatosis-of-the-gallbladder