title: Liposclerosing myxofibrous tumor: A series of 9 cases and review of the literature.
abstract: BACKGROUND
  Liposclerosing myxofibrous primary bone tumor is a rare benign bone lesion that was characterized by complex mixture of various histological elements.
  
  
  METHODS
  We have studied the radiological, clinical and pathological features of nine patients with this disorder. Pain and limping were the main symptoms.
  
  
  RESULTS
  Radiographic images typically showed a geographic lytic lesion with thick sclerotic margin, reflecting a pattern of slow growth. Histological sections revealed a polymorphic neoplasia characterized by predominant proliferation of stellate and fusiform cells aimed the myxoid matrix.
  
  
  CONCLUSIONS
  These features suggest that the lesion may represent a variant of fibrous dysplasia with a high risk of malignant transformation.
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Eduardo Rinaldi
authors.initials: ER
authors.lastname: Regado
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Pedro Braga Linhares
authors.initials: PB
authors.lastname: Garcia
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Anabela Cunha
authors.initials: AC
authors.lastname: Caruso
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Ana Luzia Brito
authors.initials: AL
authors.lastname: de Almeida
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Ierecê Lins
authors.initials: IL
authors.lastname: Aymoré
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Walter
authors.initials: W
authors.lastname: Meohas
authors.affiliation: Research Division, National Institute of Orthopedics and Traumatology/MS, Rio de Janeiro, RJ, Brazil.
authors.forename: Diego Pinheiro
authors.initials: DP
authors.lastname: Aguiar
keywords: Bone tumors; Liposclerosing myxofibrous tumor; Series of cases