The depressions seen in the lower half of the specimen were caused by a staghorn calculus which has been remoed 肾下极凹陷区域是由于鹿角样结石压迫所致，结石已经取出。
2.
A large staghorn calculus is seen obstructing the renal peli - calyceal system . the lower pole of the kidney shows areas of hemorrhage and necrosis with collapse of cortical areas 图中可见巨大的鹿角样结石嵌顿于肾盂肾盏系统。肾下极可见出血坏死区域，伴有肾皮质萎缩。
