Pai syndrome: a report of a case and review of the literature.

Pai syndrome is a rare congenital disorder first described in 1987. The main clinical features of the syndrome include median cleft of the upper lip, intra-cranial lipoma, and cutaneous polyps. Only four cases have been described previously. This is the fifth who is a twin of Arabian descent to be reported. Full description of the clinico-pathological features and a review of the relevant medical literature is presented. To the best of our knowledge, this is the first case of Pai syndrome in a twin in the English literature.