Congenital Perineal Groove Defect in Monozygotic Twin Infants: A Literature Review
Perineal groove is a rare benign congenital anomaly with lesion that resembles perforation of mid-perineum or perineal raphe area.Most reported cases of congenital perineal groove presented as an isolated defect in term or early-term singleton female infants.Thus far, there is no reported case of this anomaly in monozygotic twins.Embryo pathogenesi