The “flowerpot” sign: Inference of poor renal function in high grade vesicoureteral reflux by calyceal orientation

Introduction/objective Modern radiographic advances have allowed for detailed and accurate imaging of not only urologic anatomy but also urologic function. The art of observational inference of subtle anatomic features and function from a static radiograph is being traded for new, more precise, and more expensive modalities. While the superiority of these methods cannot be denied, the total information provided in simpler tests should not be...