case_images: PMC9910813_01
case_images: Abdominal ultrasound showing thickening of the gallbladder wall, with visualization of hyperechoic structures inside it, creating a tubular coiled appearance (arrow), without acoustic shadowing.
case_images: cureus-0015-00000033599-i01.jpg
case_images: PMC9910813_01_cureus-0015-00000033599-i01.jpg
case_images: FIG1
case_images: There was thickening of the gallbladder wall, with visualization of hyperechoic structures inside it with hypoechoic center lines like a rail, creating a tubular coiled appearance, without acoustic shadowing, and with apparent writhing movements (Figure 1).