We present an extensive nevus sebaceous of Jadassohn which was present at birth and had a rapid growth during puberty. Multiple nodules of syringocystadenoma papilliferum developed on the plaque of nevus sebaceous. The extensive nature of nevus sebaceous and numerous benign tumours is a therapeutic challenge on the face. Currently there is no adequate evidence to support prophylactic excision of nevus sebaceous of Jadassohn, especially in people with skin of colo