Patent urachus results when there is a persistence of an allantosis remnant which normally undergoes atresia during embryological development. Failure of urachal obliteration may result in 4 different types of urachal remnants: complete patency or ves...
Patent urachus results when there is a persistence of an allantosis remnant which normally undergoes atresia during embryological development. Failure of urachal obliteration may result in 4 different types of urachal remnants: complete patency or vesicou