Prenatal Diagnosis of a Patent Urachus Cyst with the Use of 2D, 3D, 4D Ultrasound and Fetal Magnetic Resonance Imaging

Fuchs, Florent; Picone, Olivier; Levaillant, J.‐M.; Mabille, M.; Mas, Amandine; Frydman, R.; Sénat, Marie-Victoire

doi:10.1159/000174572

Cited by 22 publications

(17 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, pseudoexstrophy of the bladder has specific findings on prenatal ultrasonography. First, a cystic mass has a wide communication with the bladder, whereas a patent urachus has a narrow communication . Second, a mass lies below the two umbilical arteries, whereas a patent urachus is centered between the umbilical arteries .…”

mentioning

confidence: 99%

“…First, a cystic mass has a wide communication with the bladder, whereas a patent urachus has a narrow communication . Second, a mass lies below the two umbilical arteries, whereas a patent urachus is centered between the umbilical arteries . Third, a mass persists as gestation progress, whereas a patent urachus disappears later in gestation, probably rupturing as urine output increases at gestational weeks 22 ~ 32 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Pseudoexstrophy of the bladder diagnosed prenatally

Choi

Park

et al. 2013

Prenatal Diagnosis

View full text Add to dashboard Cite

What's already known about this topic? When a cystic mass is seen at the base of the umbilical cord that appears to be in direct communication with the bladder, the differential diagnosis includes urachal anomaly and pseudoexstrophy of the bladder. What does this study add? This is the first case of pseudoexstrophy of the bladder diagnosed prenatally. This case had unique findings on prenatal imaging: a cystic mass at the base of the umbilical cord with a wide communication with the bladder that persists as gestation progress.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Pseudoexstrophy of the bladder diagnosed prenatally

Choi

Park

et al. 2013

Prenatal Diagnosis

View full text Add to dashboard Cite

show abstract

“…Indeed, defects in the lower abdominal wall, as well as abnormal traction of the umbilical cord, seen in omphalocele, were most likely to have a deleterious effect on normal development from the urogenital sinus to the bladder [1011]. Recent advances in ultrasound techniques revealed urachus defects in fetuses in utero [1213]. However, abnormalities in the vas deferens and/or colliculus seminalis, even if present, would be found after puberty.…”

Section: Discussionmentioning

confidence: 99%

Descent of mesonephric duct to the final position of the vas deferens in human embryo and fetus

et al. 2016

View full text Add to dashboard Cite

Because the ureter arises from the mesonephric or Wolffian duct (WD), the WD opening should migrate inferiorly along the urogenital sinus or future urethra. However, this process of descent has not been evaluated morphometrically in previous studies and we know little about intermediate morphologies for the descent. In the present work, serial sagittal sections of 15 specimens at gestational age 6–12 weeks and serial horizontal sections of 20 specimens at 6–10 weeks were analyzed. Monitoring of horizontal sections showed that, until 9 weeks, a heart-, lozenge- or oval-shape of the initial urogenital sinus remained in the bladder and urethra. Thus, the future bladder and urethra could not be distinguished by the transverse section or plane. The maximum width of the urogenital sinus or bladder at 6–10 weeks was 0.8 mm, although its supero-inferior length reached 5 mm at 10 weeks. During earlier stages, however, the medial shift of the WD was rather evident. Depending on the extent of upward growth of the bladder smooth muscle, the descent of the vas deferens became evident at 10–12 weeks. Development of the urethral rhabdosphincter likely resulted in the differentiation of urogenital sinus into the urethra and bladder before formation of the bladder neck with 3-layered smooth muscles. Development of the prostate followed these morphological changes, later accelerating the further descent of the WD opening. Because of their close topographical relationships, slight anomalies or accidents of the umbilical cord at 10–12 weeks may have a significant effect on normal anatomy.

show abstract

“…Allantois is a rudimentary embryological structure placed centrally in the umbilical cord 1 3. Allantoid cysts have previously been diagnosed with three-dimensional ultrasound and magnetic tomographic imaging and the relationship between the cysts and vessels can be visulaised 2 9. Allantoid cysts separate the umbilical cord vessels, while pseudocysts and omphalomesenteric cysts displace the vessels 2 5 6 8.…”

Section: Discussionmentioning

confidence: 99%

“…Allantiod cysts usually rupture spontaneously in the third trimester 5–8. A patent allantois can be diagnosed with ultrasound 2 5 7–9…”

Section: Introductionmentioning

confidence: 99%