Bizarre parosteal osteochondromatous proliferation of humerus with unusual presentation: a report of one atypical case

Authors

  • Dilleswari Pradhan Department of Pathology, SCB Medical College, Cuttack-753007, Odisha
  • Basanta Manjari Swain Department of Radio Diagnosis, SCB Medical College, Cuttack-753007, Odisha
  • Anasuya Lenka Department of Pathology, SCB Medical College, Cuttack-753007, Odisha
  • Barada Prasanna Samal Department of Orthopaedics, SCB Medical College, Cuttack-753007, Odisha

Keywords:

BPOP, Osteochondroma, Trabeculated osteolytic lesion

Abstract

Bizarre Parosteal Osteochondromatous Proliferation (BPOP) as defined by Nora and colleagues in 1983 (called Nora lesion) is a rare benign, bony lesion and  found mostly  in metacarpals and metatarsals. BPOP in long bones are very rare. It is an exophytic outgrowth from the cortical surface comprising of bone, cartilage and fibrous tissue. The key radiological features to describe such lesions as calcified and osseous masses. We describe a case of BPOP in a 26 year old female involving the shaft of humerus. The radiological picture is a trabeculated osteolytic lesion. FNA revealed chondroma and histologic picture showed disordered pattern of cartilage, bone and fibrous tissue. This case is reported as the lesion is at a rare site (shaft of Humerus) unusual X-ray picture for the lesion and diagnostic histopathologic picture.

References

Nora FE, Dahlin DC, Beabout JW. Bizarre parosteal osteochondromatous proliferations of the hands and feet. Am J Surg Pathol. 1983;7:245-50.

Gerald Gruber, Christian Giessauf, Andreas Leithner, Max Zacherl, Heimo Clar, Koppany Bodo, et al. Bizarre parosteal osteochondromatous proliferation (Nora lesion): a report of 3 cases and a review of the literature. Can J Surg. 2008 Dec;51(6):486-9.

J. H. Flint, P. L. Mckay. Bizarre parosteal osteochondromatous proliferation and periosteal chondroma: a comparative report and review of the literature. J Hand Surg. 2007;32(6):893-8.

Zambrano E, Nose V, Perez-Atayde AR, Gebhardt M, Hresko MT, Kleinman P, et al. Distinct chromosomal rearrangements in subungual (Dupuytren) exostosis and bizarre parosteal osteochondromatous proliferation (Nora lesion). Am J Surg Pathol. 2004;28(8):1033-9.

Bush JB, Reith JD, Meyer MS. Bizarre par steal osteochondromatous proliferation of the proximal humerus: case report. Skeletal Radiol. 2007;36:535-40.

Downloads

Published

2016-12-10