Why won’t the catheter drain? Part 2
If you have read the first of these two posts you can find it here.
At first glance the catheter appears to be lying outside the bladder. Flushing the catheter whilst scanning the pelvis gave the answer. The catheter was lying within a bladder diverticulum. The balloon was occluding the neck of the diverticulum, hence it wasn’t draining any urine.