Aggressive fibromatosis of the mandible in a two-month old infant.

Aggressive fibromatosis is a benign spindle cell tumor with locally infiltrative behavior and tendency to recur. It has overlapping features with other spindle cell lesions and hence it is pertinent to be distinguished from them as they have different treatment modalities. We report a rare case involving the mandible of a two-month old infant with histopathological, immunohistochemical and imaging features.