Fig. 3From: Point-of-care ultrasound for evaluating intra-abdominal calcification in the pediatric emergency department: case series and review of literatureGall bladder sludge: Gall bladder sludge (long thin arrows), which appears as low-amplitude homogeneous echoes, layering (thick arrow) on the posterior wall of the gall bladder with posterior acoustic enhancement due to change in reflective surface. The liver parenchyma (arrowheads) can be seen on the superior aspect of the acoustic windowBack to article page