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The urinary bladder
Published in Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie, Bailey & Love's Short Practice of Surgery, 2018
Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie
a patent urachus - the presence of a urinary leak from the umbilicus, present at birth or commencing soon after, suggests this diagnosis. In adult life, infection in a urachal cyst may produce a fistula and adenocarcinoma may occur (Figures 77.36 and 77.37). Treatment is by means of excision of the urachal tract and closure of the bladder once distal obstruction has been excluded;
The abdominal wall, hernias and the umbilicus
Published in Kevin G Burnand, John Black, Steven A Corbett, William EG Thomas, Norman L Browse, Browse’s Introduction to the Symptoms & Signs of Surgical Disease, 2014
Kevin G Burnand, John Black, Steven A Corbett, William EG Thomas, Norman L Browse
A urachal cyst is an immobile swelling below the umbilicus deep to the abdominal muscles. It may become large enough to fluctuate and have a fluid thrill. If it is still connected to the bladder, it may vary in size and be difficult to distinguish from a chronically distended bladder.
The Allantois and Urachus: Histological Study Using Human Embryo and Fetuses
Published in Fetal and Pediatric Pathology, 2022
Xuelai Liu, Xianghui Xie, Zhe-Wu Jin, Huan Wang, Yanbiao Song, Peng Zhao, Long Li
Urachus abnormalities, such as urachal sinus, urachal cyst, and patent urachus (urachal fistula), are caused by the remnant of the urachus [6–8]. Because the lumen of the urachal remnants is continuous with the cavity of the urinary bladder, urachal sinuses can give rise to umbilical intermittent drainage, with patent urachus being associated with drainage of urine from the umbilicus. During development, the embryo is attached to the chorion by a connecting stalk composed of extraembryonic mesoderm within which the allantois grows. The allantois remains rudimentary as a transitory extraembryonic portion of the urachus [9]. Enlargement of the urinary bladder is thought to be accompanied by the conversion of the allantois to the urachus, with the allantois becoming progressively obliterated before week 12 of gestation [10].
Prenatal diagnosis and prognosis assessment of fetal intra-abdominal cystic lesions: a retrospective study in 264 cases
Published in Journal of Obstetrics and Gynaecology, 2019
Min Lv, Baihui Zhao, Qiong Luo
There were four postpartum deaths, of all, which had been given prenatal recommendations for the intervention. One had meconium peritonitis and died one week after birth. One had an intestinal obstruction, and an operation was attempted to be performed, but the neonate died 10 days after birth. Other case had adrenal neuroblastoma and died three months after birth. The final case was prenatally diagnosed as having an urachal cyst, which was postnatally determined to be acromphalus, ureter obstruction and hydronephrosis; this neonate’s family refused further treatment after birth (Table 1).
Urinary bladder rupture years after excision of urachal remnant
Published in Baylor University Medical Center Proceedings, 2020
Zoe Blumenthal, Kim H. Thai, Faris Hashim, Jeffrey Waxman, Marawan M. El Tayeb
While the exact cause of urinary bladder rupture in this patient is not entirely clear, the patient’s history of urachal cyst excision must be considered as relevant. There is a deficiency in the literature regarding postoperative complications following urachal cyst excision. Complications have been reported as high as 14.7%, which includes wound infection and bladder leak.1 The rate of postoperative bladder rupture or leak must be further investigated. We believe that spontaneous bladder rupture 5 years following urachal cyst excision is a unique etiology for urinary ascites.