Bizzarre parosteal osteochondromatous proliferation: case report

Ann Ital Chir. 2013 Apr 15;84(ePub):S2239253X13020999.

Abstract

Nora's tumor, also known as bizzarre parosteal osteochondromatous proliferation (POPB), is an exophytic outgrowth arising from the cortical surface of the bone that consists of a mixture of bone, cartilage and fibrous tissue. It is a benign lesion with atipical microscopic features and a tendency to recur. It must be distinguishable from parosteal osteogenic sarcoma, parosteal chondrosarcoma, osteochondroma, florid reactive periostitis, turret exostosis, subungueal exostosis, myositis ossificans. The treatment is surgical, but a high rate of local relapse is described. The diagnosis is histological. We report a case of a patient with POPB involving the foot, underwent surgical excision and with no evidence of recurrence at one year.

Publication types

  • Case Reports

MeSH terms

  • Bone Neoplasms / pathology*
  • Foot Diseases / pathology*
  • Humans
  • Male
  • Middle Aged
  • Osteochondroma / pathology*