A Rare Report of Proliferative Fasciitis of the Ear in a Pediatric Patient.

Nodular fasciitis is a relatively uncommon disorder that occurs in soft tissues and results in a rapidly growing mass predominately found in adults. Proliferative fasciitis is a rarer variant of nodular fasciitis that is typically found in adults over age 40 and is extremely rare in pediatric patients. This case report involves a pediatric patient who presented with a large, posterior, rapidly growing mass on the right ear. This was excised and the subsequent biopsy required several pathology consultations and opinions. Multiple immunohistochemical and molecular studies eventually led to the findings of spindle cell mesenchymal neoplasm, consistent with proliferative fasciitis of pediatric type.