Urachus

The urachus is an embryological canal connecting the urinary bladder of the fetus with the allantois, a structure that contributes to the formation of the umbilical cord. The lumen of the urachus is normally obliterated during embryonic development, transforming the urachus into a solid cord, a functionless remnant. The urachus lies in the space of Retzius, between the transversalis fascia anteriorly and the peritoneum posteriorly. (From the Wikpedia article Urachus.)

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Recent Publications on Urachus:
Xanthogranulomatous Inflammation of Urachus Mimicking Urachal Carcinoma. Urachal xanthogranuloma is rare. In this case, the patient presented with...	27th June, 2008	Department of Urology, Singapore General Hospital, Singapore, Singapore.	Urology. 2008 Jun 23;. DOI Direct Link
[Urachal diseases] Urachal diseases are infrequent. Congenital affections include cysts,...	18th June, 2008	Service d'urologie, Hopital Cochin, 27, rue du Faubourg St-Jacques, 75014	Ann Urol (Paris). 2007 Oct;41(5):209-15.
Urachal-sigmoid fistula associated with diverticular disease. BACKGROUND: Urachal anomalies rarely present in adulthood. We report the...	11th June, 2008	Department of Urologic Sciences, University of British Columbia,	Can Urol Assoc J. 2007 Mar;1(1):52-4.
Cholecysto-urachal fistula in an adult male with urinary tract infection. The urachus is an embryonic remnant that connects the primitive bladder to...	29th May, 2008	Department of Diagnostic Imaging, Rhode Island Hospital, 593 Eddy Street,	Abdom Imaging. 2008 May 28;. DOI Direct Link
Synchronous and multiple transitional cell carcinoma of the bladder and urachal cyst. Incomplete involution of the allantoic duct can result in different...	21st May, 2008	Department of Urology, Clinical Center Dr Dragisa Misovic, Belgrade,	Int J Urol. 2008 Jun;15(6):554-6. DOI Direct Link
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Urachus Patents:
US Patent No.	Title
7129049	Method of detecting equine glycogen storage disease IV
5707985	Naphthyl-, quinolyl- and isoquinolyl- sulfonamide derivatives as cell adhesion modulators

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