[1] This leads to the formation of an abnormal connection between the rectum and the vulval vestibule, immediately posterior to the hymen, so that an ectopic anus opens into the fourchette, or frenulum, of the labia minora.
[2] The diagnosis of a rectovestibular fistula can be made in female newborns if the vulva is stained with meconium (the earliest form of stool in an infant).
[3] The opening of the anus may be difficult to see due to its small size and position, but it may be visible as a thickening of the median perineal raphe with an obvious anal dimple.
[1] Colostomy is recommended by most surgeons, and has a good prognosis, with 90% of patients regaining normal bowel control.
[2] Colostomy is often followed by posterior sagittal anorectoplasty (PSARP), a surgical procedure to repair the anal orifice, at a later date.