[Unusual cause of neonatal hemorrhage: congenital cutaneous aplasia of the vertex]. / Une cause inhabituelle d'hémorragie néonatale: l'aplasie cutanée congénitale du vertex.

We report on a case of familial congenital scalp defect with fetal bleeding during labor. The authors emphasize the frequency of familial forms and the potential risk of such abnormalities during labor's monitoring. Treatment and classification are reviewed. The prognosis is good, as shown by the mother's case 27 years later.