Aggressive infantile fibromatosis

Aggressive infantile fibromatosis is a locally recurring, non-metastasizing lesion, presenting with a single or multiple fast-growing masses that are present at birth or occur within the first year of life.:607 Aggressive infantile fibromatosis is a locally recurring, non-metastasizing lesion, presenting with a single or multiple fast-growing masses that are present at birth or occur within the first year of life.:607