Embryogenesis of bladder exstrophy: A new hypothesis

<b>Aims and Objective:</b> To postulate a hypothesis to explain the embryogenesis of exstrophy bladder based on our clinical observations. <b> Materials and Methods:</b> In 27 cases of exstrophy, we measured the distance between the lowermost inguinal skin crease to the roo...

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Main Authors: Kulkarni Bharati, Chaudhari Navin
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2008-01-01
Series:Journal of Indian Association of Pediatric Surgeons
Subjects:
Online Access:http://www.jiaps.com/article.asp?issn=0971-9261;year=2008;volume=13;issue=2;spage=57;epage=60;aulast=Kulkarni
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author Kulkarni Bharati
Chaudhari Navin
author_facet Kulkarni Bharati
Chaudhari Navin
author_sort Kulkarni Bharati
collection DOAJ
description <b>Aims and Objective:</b> To postulate a hypothesis to explain the embryogenesis of exstrophy bladder based on our clinical observations. <b> Materials and Methods:</b> In 27 cases of exstrophy, we measured the distance between the lowermost inguinal skin crease to the root of the penis (clitoris) (B) and the distance between the penis (clitoris) and the scrotum (labia majora) (C). These were compared with age, height and XP distance (distance between xiphisternum and symphysis pubis) matched control group of normal children. The distance between the lowermost inguinal skin crease and the penis (clitoris) (A) was measured in control group. <b> Results:</b> The observation was A = B &#x002B; C. This implies that in exstrophy bladder, the position of the penis (clitoris) has moved cephalad from the lower border of A to the junction of B and C. <b> Conclusion:</b> Based on the observations, we postulate that abnormal origin of genital tubercle may be the cause of exstrophy bladder. The abnormal origin of primordia of the genital tubercle in more cephalad direction than normal causes wedge effect, which will interfere with the medial migration of the mesoderm as well as the midline approximation of mesodermal structures in the lower abdominal wall, thereby resulting in the exstrophy of bladder.
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spelling doaj.art-edd8180046174b3893c81e0640ea719f2022-12-22T00:15:10ZengWolters Kluwer Medknow PublicationsJournal of Indian Association of Pediatric Surgeons0971-92611998-38912008-01-011325760Embryogenesis of bladder exstrophy: A new hypothesisKulkarni BharatiChaudhari Navin<b>Aims and Objective:</b> To postulate a hypothesis to explain the embryogenesis of exstrophy bladder based on our clinical observations. <b> Materials and Methods:</b> In 27 cases of exstrophy, we measured the distance between the lowermost inguinal skin crease to the root of the penis (clitoris) (B) and the distance between the penis (clitoris) and the scrotum (labia majora) (C). These were compared with age, height and XP distance (distance between xiphisternum and symphysis pubis) matched control group of normal children. The distance between the lowermost inguinal skin crease and the penis (clitoris) (A) was measured in control group. <b> Results:</b> The observation was A = B &#x002B; C. This implies that in exstrophy bladder, the position of the penis (clitoris) has moved cephalad from the lower border of A to the junction of B and C. <b> Conclusion:</b> Based on the observations, we postulate that abnormal origin of genital tubercle may be the cause of exstrophy bladder. The abnormal origin of primordia of the genital tubercle in more cephalad direction than normal causes wedge effect, which will interfere with the medial migration of the mesoderm as well as the midline approximation of mesodermal structures in the lower abdominal wall, thereby resulting in the exstrophy of bladder.http://www.jiaps.com/article.asp?issn=0971-9261;year=2008;volume=13;issue=2;spage=57;epage=60;aulast=KulkarniBladder exstrophyembryology of cloacagenital tubercle
spellingShingle Kulkarni Bharati
Chaudhari Navin
Embryogenesis of bladder exstrophy: A new hypothesis
Journal of Indian Association of Pediatric Surgeons
Bladder exstrophy
embryology of cloaca
genital tubercle
title Embryogenesis of bladder exstrophy: A new hypothesis
title_full Embryogenesis of bladder exstrophy: A new hypothesis
title_fullStr Embryogenesis of bladder exstrophy: A new hypothesis
title_full_unstemmed Embryogenesis of bladder exstrophy: A new hypothesis
title_short Embryogenesis of bladder exstrophy: A new hypothesis
title_sort embryogenesis of bladder exstrophy a new hypothesis
topic Bladder exstrophy
embryology of cloaca
genital tubercle
url http://www.jiaps.com/article.asp?issn=0971-9261;year=2008;volume=13;issue=2;spage=57;epage=60;aulast=Kulkarni
work_keys_str_mv AT kulkarnibharati embryogenesisofbladderexstrophyanewhypothesis
AT chaudharinavin embryogenesisofbladderexstrophyanewhypothesis