Bifid ureter
A bifid ureter, or ureter fissus, is an example of incomplete duplication of a duplex collecting system.
Epidemiology
Present in ~5% (range 1-10%) of the population 1-2.
Gross anatomy
A bifid ureter is formed when there is a duplex kidney (separate pelvicalyceal collecting systems) drain into separate ureters, but the ureters unite before draining into the bladder at a single ureteric orifice 1.
Rarely, one of the branches of a bifid ureter will be blind-ending and will not unite 2.
Differential diagnosis
- double ureter: persistent of ureters to drain at separate ureteric orifices in the bladder
Related Radiopaedia articles
Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
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abdominal cavity
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peritoneum
- peritoneal ligaments
- mesentery
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peritoneal spaces
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supramesocolic space
-
right supramesocolic space
- right subphrenic space
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right subhepatic space
- anterior right subhepatic space
- posterior right subhepatic space (Morison pouch)
-
lesser sac
- epiploic foramen (of Winslow)
- left supramesocolic space (left perihepatic space)
-
right supramesocolic space
- inframesocolic space
-
supramesocolic space
- inguinal canal (mnemonic)
- Hesselbach triangle
- umbilical folds
- retroperitoneum
-
peritoneum
- pelvic cavity
- perineum
- abdominal and pelvic viscera
- gastrointestinal tract
- spleen
- hepatobiliary system
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endocrine system
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adrenal gland
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- chromaffin cells
- variants
- pancreas
- organs of Zuckerkandl
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adrenal gland
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urinary system
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kidney
- renal pelvis
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variants
- number
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- embryology
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kidney
- male reproductive system
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female reproductive system
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- broad ligament (mnemonic)
- variant anatomy
- embryology
- blood supply of the abdomen and pelvis
- arteries
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abdominal aorta
- inferior phrenic artery
- celiac artery
- superior mesenteric artery
- middle suprarenal artery
- renal artery (variant anatomy)
- gonadal artery (ovarian artery | testicular artery)
- inferior mesenteric artery
- lumbar arteries
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common iliac artery
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internal iliac artery (mnemonic)
- anterior division
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abdominal aorta
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sacral plexus
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- sciatic nerve
- superior gluteal nerve
- inferior gluteal nerve
- nerve to piriformis
- perforating cutaneous nerve
- posterior femoral cutaneous nerve
- parasympathetic pelvic splanchnic nerves
- pudendal nerve
- nerve to quadratus femoris and inferior gemellus muscles
- nerve to internal obturator and superior gemellus muscles
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