A case of right hypodysplastic kidney and ectopic ureter associated with bicornuate uterus in a prepubertal girl

Congenital anomalies of the kidney and urinary tract (CAKUT) are frequently associated with Mullerian anomalies. This can be explained by the fact that Mullerian duct elongation depends on the preformed Wolffian duct during embryogenesis. While CAKUT such as unilateral renal agenesis and multicystic dysplastic kidney are commonly identified prenatally by routine ultrasound, the diagnosis of Mullerian anomalies is often delayed, increasing the risk of complications such as endometriosis or pelvic inflammatory disease. Herein, we report a case of a premenarchal girl who had initially been diagnosed with right multicystic dysplastic kidney. She presented with continuous urinary incontinence at 4 years old and further evaluation by contrast-enhanced computed tomography, cystoscopy, colposcopy, ureterography, and hysterosalpingography led to the final diagnosis of right hypodysplastic kidney and ectopic ureter associated with bicornuate uterus. A strong family history of uterine malformations prompted the examination of the uterus. Genetic testing was suggested but the family declined. She is planned to be referred to a gynecologist at puberty for further assessment. The recognition and screening rate of concurrent Mullerian anomalies in CAKUT patients varies between institutions. Screening for Mullerian anomalies in prediagnosed CAKUT girls may enable to provide timely counseling and to prevent gynecological complications. Similar content being viewed by others

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We gratefully acknowledge the hospital staff for their help and support. Author information Authors and Affiliations Corresponding author Ethics declarations Conflict of interest The authors have declared that no conflict of interest exists. Human and animal rights statement This article does not contain any studies with human participants or animals performed by any of the authors. Informed consent Informed consent was obtained from the patient’s parents. Additional information Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. About this article Cite this article Nakamura, M., Kanda, S., Kajiho, Y. et al. A case of right hypodysplastic kidney and ectopic ureter associated with bicornuate uterus in a prepubertal girl. CEN Case Rep 12, 122–129 (2023). https://doi.org/10.1007/s13730-022-00730-1 Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s13730-022-00730-1