infantile myofibromatosis

in·fan·ti·le my·o·fi·bro·ma·to·sis

myofibromatosis seen at birth or in infants, with multiple lytic bone lesions and involving soft tissue, or with visceral involvement.

infantile myofibromatosis

A condition characterized by fibrosis affecting soft tissue, bone, and viscera of infants and young children; IM is usually solitary but may be multicentric; it rarely recurs, and may regress with time. See Fibrous tumor of childhood.