[Bizarre parosteal osteochondromatous proliferation (Nora's lesion): two cases]

Rev Chir Orthop Reparatrice Appar Mot. 2007 Sep;93(5):494-500. doi: 10.1016/s0035-1040(07)90332-3.
[Article in French]

Abstract

The lesion Nora described in 1983 as a bizarre parosteal osteochondromatous proliferation (BPOP) is a member of a group of osteocartilaginous surface lesions. BPOP is infrequent but new cases are regularly reported. We report two new cases with an unusual localization (ilion and distal humerus) and unusual size (9 cm for the iliac lesion). In light of these cases and reports in the literature, the main differential diagnoses of BPOP are exostosis and parosteal osteosarcoma.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Bone Neoplasms* / diagnosis
  • Bone Neoplasms* / diagnostic imaging
  • Bone Neoplasms* / pathology
  • Bone Neoplasms* / surgery
  • Bone Plates
  • Diagnosis, Differential
  • Exostoses / diagnosis
  • Exostoses / diagnostic imaging
  • Female
  • Follow-Up Studies
  • Humans
  • Humerus* / diagnostic imaging
  • Humerus* / pathology
  • Humerus* / surgery
  • Ilium* / diagnostic imaging
  • Ilium* / pathology
  • Ilium* / surgery
  • Magnetic Resonance Imaging
  • Male
  • Osteochondroma* / diagnosis
  • Osteochondroma* / diagnostic imaging
  • Osteochondroma* / pathology
  • Osteochondroma* / surgery
  • Osteosarcoma / diagnosis
  • Osteosarcoma / pathology
  • Periosteum* / diagnostic imaging
  • Periosteum* / pathology
  • Periosteum* / surgery
  • Time Factors
  • Tomography, X-Ray Computed