Congenital generalized fibromatosis with predominant osseous involvement in a Chinese newborn.

A rare case of congenital generalized fibromatosis with predominant bone involvement in a Chinese newborn is reported. Radiological examination revealed multiple osteolytic lesions in all the long limb bones and the skull. Pathology showed a mixture of fibroblasts and smooth muscle-like cells. The spontaneous regression of most of the bone lesions after 18 months is highlighted.