Clinical characteristics of congenital anomalies of kidney and urinary tract with cryptorchidism

Objective To explore the prevalence and clinical characteristics of congenital anomalies of kidney and urinary tract (CAKUT) with cryptorchidism in children. Methods A total of 21 children of CAKUT with cryptorchidism were recruited from January 2017 to August 2018.Their complete clinical and imaging data were collected and clinical symptoms and imaging abnormalities were summarized. Results The total number of genitourinary abnormalities was 26.The major CAKUT diseases included hydronephrosis, renal hypoplasia and duplex collecting system.No association existed between CAKUT and parity or paternal age.However, the incidence of CAKUT was correlated with type of cryptorchidism.Children with unilateral testicular agenesis and intraperitoneal testis were more susceptible to concurrent CAKUT than other types of cryptorchidism. Conclusions Urinary tract ultrasonography is routinely recommended for children with cryptorchidism.The incidence of CAKUT is higher in children with unilateral testicular agenesis and intraperitoneal testis.Clinical alert should be raised and necessary imaging examinations conducted.It is necessary to diagnose this disorder early, avoid a misdiagnosis and made treatment properly. Key words: Cryptorchidism; Congenital anomalies of the kidney and urinary tract; Incidence