A full-term female newborn with a BW of 3540 g was born at 39 weeks of gestation via CS for breech presentation from a 35-year-old mother G1P1; Apgar score was 9 and 10 at 1st and 5th minute, respectively. On the ultrasound of the second trimester’s anatomy scan, mildly dilated lateral ventricles were detected, a finding that was confirmed by a cranial ultrasound on the 4th day of life. The first physical examination revealed a mildly erythematous sulcus extending from the posterior vaginal fourchette to the anterior anal orifice (). The diagnosis of perineal groove was confirmed by a Pediatric Surgeon. Since no other anorectal or genital anomalies were present and the baby passed stools normally, the perineal defect was simply observed and remained stable throughout the neonate’s 5-day hospitalization. Mild improvement in the epithelization of the area was already evident at discharge ().
A 7-day old female patient was referred by her neonatologist with a suspicion of a congenital anal fissure. During examination we found a perineal groove. She was born to a 26-year-old gravida 1 para 1 woman who did not take folic acid during her pregnancy. The patient was not noted to have any other associated anomalies during her exam.\nShe was followed up regularly for 2 years, and it was noted that the perineal groove spontaneously resolved.