Double ureter and congenital diverticulum of the ureter

Abstract

The ureteral duplication is a relatively common malformation and usually has no pathologic consequences. On the contrary, congenital diverticula of the ureter are rare and often give rise to urinary complications. A double malformation combining left ureteral duplication and a congenital diverticulum of the right ureter is reported and discussed. This rare case illustrates one and the same malformational process arrested at different stages of development.

Morphological characteristics of the double ureter from its origin up to the end

“…The ureteral duplicity coexist with pyelocalyceal duplicity, with two variations: single, large renal hilum or, rarely (we met one case only) or a double renal hilum, when the formation of both ureters is always extrarenal, a variation reported by [1].…”

“…So our only percentage for the ureteral bifidity (1.89% of cases) is higher than in literature, compared to that of [7 ] by 1.24%, to Nation [cited by 7] with 1.21% and greater than that encountered by Privett [quoted by 1] with only 0.08%. According to [1] are exceptional cases of ureteral duplicity or bifidity with a blind branch. The two ureters will drain each a proper number of renal segments but drainage of a common segment it may appear (when upper ureter is formed of 2 or 3 calyces), an aspect mentioned by [1].…”

“…According to [1] are exceptional cases of ureteral duplicity or bifidity with a blind branch. The two ureters will drain each a proper number of renal segments but drainage of a common segment it may appear (when upper ureter is formed of 2 or 3 calyces), an aspect mentioned by [1]. [4 and 5] states that, in rare cases, while one ureter ends into the bladder, the other may end in the vagina, urethra, vestibule or epididymis.…”

“…These morphological variations are closely interrelated; the duplicity of the pyelo-calyceal system is accompanied by bifid or double ureter. The ureteral bifidity and duplicity are relatively rare abnormalities [1], frequently encountered by radiologists [2]. The cases of ureteral duplicity or bifidity with a blind branch are exceptionally rare [1].…”

“…The ureteral bifidity and duplicity are relatively rare abnormalities [1], frequently encountered by radiologists [2]. The cases of ureteral duplicity or bifidity with a blind branch are exceptionally rare [1]. According to Gatti [quoted by 3] is more common in women and is associated with ureterocele.…”