Hemangiomatosis in two sets of premature twins.

We attempted to identify the association of multifocal hemangiomas, specifically hepatic hemangiomatosis, in twins. We retrospectively reviewed our database of infants with hemangiomas, identifying those twins who both had hemangiomas, and we report two cases of twins with hemangiomatosis, including hepatic hemangiomas. Of 39 sets of twins in our Hemangioma Program, both twins had hemangiomas in seven twin sets. Of these seven sets, only the two reported in this article had hemangiomatosis. There were also five sets of triplets, with one set having two siblings affected by hemangiomas. We concluded that although hemangiomas in multiple gestation infants is well known, hemangiomatosis including hepatic hemangiomatosis is unusual.