In this case, a large "staghorn" calculus (so named because the prominent projections of the stone into the calyces resemble deer antlers) was present that filled up the pelvis and calyceal system.

在病例中，有一大的鹿状的结石（如命名是因为结石突入到肾盏内与鹿似）填满了肾盂肾盏。