Abstract
The pseudosarcomatous proliferative lesions of soft tissues are fascia-based fibroblastic and myofibroblastic lesions that have the potential to be overdiagnosed as sarcomas. They may be subtyped according to depth of involvement, age at presentation, and certain histologic features. Subtypes are proliferative fasciitis, proliferative myositis, nodular fasciitis, intravascular fasciitis, and cranial fasciitis. They are presumed to be reactive. Recurrences are rare after tissue-sparing surgical excision.
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