Bizzarre parosteal osteochondroma proliferation. Case report
Maria Onesti 1, Sara Carella 1, Vittoria Amorosi 1, Doria Pedace 2, Domenico Campagna 3, Pasquale Fino 1, Claudio Latini 4
Affiliations
Article Info
1 Department of Plastic, Reconstructive and Aesthetic Surgery, University of Rome “Sapienza”, Policlinico Umberto I, Rome, Italy
2 Specialist in Dermatology and Venereology, University of Rome “Sapienza”, Policlinico Umberto I, Rome, Italy
3 Department of Pathology, San Giovanni-Addolorata Hospital, Rome, Italy
4 Department of Plastic and maxillofacial surgery, San Giovanni-Addolorata Hospital, Rome, Italy
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.
Keywords
- Bizarre parosteal osteochondromatous proliferation
- Nora’s lesion
