title: Pseudomalignant tumor after biopsy of periostitis.
abstract: Periosteal reaction is a commonly encountered radiographic finding. Differential diagnoses include trauma, infection, and neoplasia. Biopsy may be necessary for the definitive diagnosis. Surgical trauma to an inflamed periosteum can stimulate a rapid and tremendous bone-forming response.
mesh_terms: D001706:Biopsy / Q000009:adverse effects; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology*; D002648:Child; D005260:Female; D006801:Humans; D006811:Humerus; D010522:Periostitis / Q000473:pathology*; D011859:Radiography