Diffuse intra-abdominal fibromatosis-report of a new entity with review of literature.

Fibromatosis, arare non-neoplastic spindle cell proliferation of unknown aetiology, can occur anywhere in the body. Though extra-abdominal sites are commonly involved, intra-abdominal fibromatosis has also been described. Described herein is an unusual case of diffuse intra-abdominal fibromatosis in a 9-year-old boy, who could not be salvaged despite extensive medical management.