Nusbacher N, Bryk D
AJR Am J Roentgenol. 1978 May;130(5):967-9. doi: 10.2214/ajr.130.5.967.
Obstruction and reflux occur fairly commonly in the duplex kidney. Although obstruction with attendant hydronephrosis is more frequently seen in the upper pole of a duplex system, a similar process involving the lower pole should be considered in the differential diagnosis of renal mass lesions. Four cases are described in which lower pole hydronephrosis simulated neoplasm.
梗阻和反流在重复肾中相当常见。虽然伴有肾积水的梗阻更常见于重复系统的上极，但在肾肿块病变的鉴别诊断中，应考虑涉及下极的类似过程。本文描述了4例下极肾积水误诊为肿瘤的病例。
