TY - JOUR T1 - Monozygotic twins discordant for exstrophy of the urinary bladder. JF - Journal of Medical Genetics JO - J Med Genet SP - 139 LP - 141 DO - 10.1136/jmg.18.2.139 VL - 18 IS - 2 AU - M Bugge Y1 - 1981/04/01 UR - http://jmg.bmj.com/content/18/2/139.abstract N2 - A pair of monozygotic male twins discordant for ectopia vesicae urinariae is described. There is no reason to think that any exogenic factors contributed to the aetiology. There was no consanguinity and no history of congenital anomalies on either side of the family. Published reports concerning family incidence and twin reports are reviewed. ER -