title: Bizzarre parosteal osteochondromatous proliferation: case report.
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.
authors: University of Rome Sapienza, Policlinico Umberto I, Rome, Italy.
authors: Maria Giuseppina
authors: MG
authors: Onesti
authors: Sara
authors: S
authors: Carella
authors: Vittoria
authors: V
authors: Amorosi
authors: Doria
authors: D
authors: Pedace
authors: Domenico
authors: D
authors: Campagna
authors: Pasquale
authors: P
authors: Fino
authors: Claudio
authors: C
authors: Latini
mesh_terms: D001859:Bone Neoplasms / Q000473:pathology*; D005534:Foot Diseases / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015831:Osteochondroma / Q000473:pathology*