title: Solitary plasmocytoma of bone in an adolescent.
abstract: OBJECTIVE
  To describe an adolescent with solitary plasmocytoma of bone and compare the pathologic and radiographic findings with osteomyelitis.
  
  
  METHODS
  A 17-year-old girl had a 3-year history of swelling of the right tibia, local pain, and hyperemia.
  
  
  RESULTS
  Initial biopsy was interpreted as osteomyelitis. The lesion was rebiopsied 3 years later and showed a plasma cell neoplasm. A review of the first biopsy confirmed a similar histologic picture.
  
  
  CONCLUSIONS
  Although solitary plasmocytoma of bone is a rare neoplasm in adolescence, it must be considered in the differential diagnosis of chronic osteomyelitis.
authors.affiliation: Department of Pediatric Oncology, Hospital do Cancer--A. C. Camargo, Sao Paulo, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Bertoni-Salateo
authors.forename: B
authors.initials: B
authors.lastname: de Camargo
authors.forename: F
authors.initials: F
authors.lastname: Soares
authors.forename: R
authors.initials: R
authors.lastname: Chojniak
authors.forename: V
authors.initials: V
authors.lastname: Penna
mesh_terms: D000293:Adolescent; D001706:Biopsy; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010019:Osteomyelitis / Q000175:diagnosis; D010954:Plasmacytoma / Q000000981:diagnostic imaging* / Q000473:pathology*; D011859:Radiography; D013977:Tibia