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The urachus is also subject to neoplasia. Urachal adenocarcinoma is histologically similar to adenocarcinoma of the bowel. Rarely, urachus carcinomas can metastasise to other regions of the body, including pelvic bones and the lung. [7] One urachal mass has been reported that was found to be a manifestation of IgG4-related disease. [8]
A urachal fistula is a congenital disorder caused by the persistence of the allantois (later, urachus), the structure that connects an embryo's bladder to the yolk sac. Normally, the urachus closes off to become the median umbilical ligament ; however, if it remains open, urine can drain from the bladder to an opening by the umbilicus .
In this condition there is a functional tubular connection between the umbilicus and the bladder which can lead to urine draining through the umbilicus. Patients often present with umbilical wetness or recurring infections in the area. Treatment options include laparoscopic surgery, excision of the umbilicus or conservative therapy.
4. Urinary bladder. 5. Urachus. cl. Cloaca. cp. Elevation which becomes clitoris or penis. i. Lower part of the intestine. ls. Fold of integument from which the labia majora or scrotum are formed. m, m. Right and left Müllerian ducts uniting together and running with the Wolffian ducts in gc, the genital cord. ot.
A urachal diverticulum (also vesicourachal diverticulum) is a congenital disorder caused by the partial persistence of the allantois. The allantois, which later becomes the urachus , connects an embryo's bladder to the yolk sac .
The Fetal Treatment Center at the University of California, San Francisco is a multidisciplinary care center dedicated to the diagnosis, treatment, and long-term follow-up of fetal birth defects. It combines the talents of specialists in pediatric surgery , genetics, obstetrics / perinatology , radiology , nursing , and neonatal medicine.
The main treatment for isolated epispadias is a comprehensive surgical repair of the genito-urinary area usually during the first 7 years of life, including reconstruction of the urethra, closure of the penile shaft and mobilisation of the corpora. The most popular and successful technique is known as the modified Cantwell-Ransley approach.
Umbilical urachal sinus. Umbilical-urachal sinus is a congenital disorder of the urinary bladder caused by failure of obliteration of proximal or distal part of the allantois, and the presentation of this anomaly is more common in children and rarer in adults.