Summary
The urachus, derived partly from the allantoic canal, tethers the apex of the bladder to the umbilical ring. This vestigial structure, though constant in man, is formed by a whole series of embryologic mechanisms which are still controversial. Total or partial persistence of the lumen of the urachal canal, when sufficiently extensive, becomes manifested by characteristic clinical features. Moreover, it is frequently associated with malformational urogenital involvement, which must be routinely sought. The sole form of treatment consists of total surgical excision of the urachus.
Résumé
L'ouraque, dérivé partiellement du canal allantoïdien, amarre l'apex de la vessie à l'anneau ombilical. Cette structure vestigiale, constante chez l'homme, se constitue par toute une série de mécanismes embryologiques encore controversés. La persistance totale ou partielle de la lumière du canal de l'ouraque se manifeste lorsqu'elle est d'une taille suffisante sous des aspects cliniques caractéristiques. De plus, elle est fréquemment associée à des atteintes malformatives urogénitales qui doivent être systématiquement recherchées. La thérapeutique univoque est constituée par l'exérèse chirurgicale totale de l'ouraque.
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Scheye, T., Vanneuville, G., Amara, B. et al. Anatomic basis of pathology of the urachus. Surg Radiol Anat 16, 135–141 (1994). https://doi.org/10.1007/BF01627586
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DOI: https://doi.org/10.1007/BF01627586