Ectopic ureter and ureterocele: Their varied sonographic manifestations

A. R. Nussbaum, J. P. Dorst, R. D. Jeffs, John Phillip Gearhart, R. C. Sanders

Research output: Contribution to journalArticle


The sonographic examinations of four patients with simple ectopic ureters and 11 with ectopic ureteroceles were reviewed to determine distinguishing characteristics. Ectopic ureters, in cases of extreme dilatation and tortuosity, sometimes mimic multiseptated, cystic abdominal masses. However, the proximal portions of some severely dilated ureters are surprisingly small. Ectopic ureters sometimes indent the lower vesicle wall, simulating a ureterocele. Ectopic ureteroceles are dynamic structures, changing in shape and size according to intravesical pressure. The lower pole of a duplex kidney may be difficult to detect because of displacement by the dilated upper renal pelvis and ureter. The renal parenchyma associated with an ectopic ureter may be equally difficult or impossible to find because of diminutive dysplasia or, less commonly, acquired atrophy. Dysplasia is characterized sonographically by highly echogenic parenchyma, lack of corticomedullary differentiation, and occasionally massive enlargement by cysts. Ectopic ureters and ureteroceles can be identified by fetal sonography.

Original languageEnglish (US)
Pages (from-to)227-235
Number of pages9
Issue number1
Publication statusPublished - 1986
Externally publishedYes


ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Nussbaum, A. R., Dorst, J. P., Jeffs, R. D., Gearhart, J. P., & Sanders, R. C. (1986). Ectopic ureter and ureterocele: Their varied sonographic manifestations. Radiology, 159(1), 227-235.