title: Diagnosis of 65 cases of ampullary renal pelvis after postnatal follow-up of 1,167 newborn infants with prenatally suspected hydronephrosis.
abstract: The aim of the present study was to assess the morbidity of ampullary renal pelvis (ARP) and document its natural history in post-natal life. A total of 1,167 newborn infants with prenatally suspected hydronephrosis were retrospectively analyzed. Of these, 65 patients were diagnosed with ARP by computed tomography urography (CTU) and/or magnetic resonance urography (MRU). All cases were followed up with ultrasonogrophy at 1, 3, 6 and 12 months after birth, and one case was followed up for 5 years. Changes in the separation of the renal pelvis collection system were recorded. Children with ARP accounted for 5.57% of the total cases (65/1,167) followed-up. No lack of connection between the renal calyces and the renal pelvis was detected. The long-term follow-up revealed that the separation of the renal pelvis collection system did not tend to increase over time. In addition to imaging examinations, long-term follow-up observation is recommended for the accurate diagnosis of pediatric ARP, particularly for differentiation from hydronephrosis.
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Fujiang
authors.initials: F
authors.lastname: Li
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Pediatric Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Hao
authors.initials: H
authors.lastname: Sun
keywords: ampullary renal pelvis; follow-up studies; hydronephrosis