Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2015 Jan-Apr;19(1):109.
doi: 10.4103/0973-029X.157225.

Bizarre parosteal osteochondromatous proliferation presenting in the nasal dorsum

Matthew Mors  1 , Santino S Cervantes  1 , Michael Hinni  1
Affiliations
Case Reports

Bizarre parosteal osteochondromatous proliferation presenting in the nasal dorsum

Matthew Mors et al. J Oral Maxillofac Pathol. 2015 Jan-Apr.

Abstract

We present the first bizarre parosteal osteochondromatous proliferation (BPOP) in the nasal dorsum. These lesions have been described since 1983; however, the vast majority of these lesions do not present in the head and neck, although five cases exist in the literature. An understanding of the potential sites for bizarre paraosteal osteochondromatous proliferations will help lead to successful diagnosis and proper treatment.

Keywords: Benign bone tumor; Nora's lesion; cartilaginous tumor; parosteal proliferation.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Clinical image of the patient presenting with a mass on left nasal dorsum
Figure 2
Figure 2
(a) A hypercellular cartilaginous area with early ossification and features of remodeling with polygonal and spindleshaped fibroblasts surrounding the osteochondromatous area (H&E stain, x100). (b) Cartilaginous area with early ossification and features of remodeling with polygonal and spindle-shaped fibroblasts (H&E stain, x400)
See this image and copyright information in PMC

References

    1. Nora FE, Dahlin DC, Beabout JW. Bizarre parosteal osteochondromatous proliferations of the hands and feet. Am J Surg Pathol. 1983;7:245–50. - PubMed
    1. Meneses MF, Unni KK, Swee RG. Bizarre parosteal osteochondromatous proliferation of bone (nora's lesion) Am J Surg Pathol. 1993;17:691–7. - PubMed
    1. Shankly PE, Hill FJ, Sloan P, Thakker NS. Bizarre Parosteal osteochondromatous proliferation in the anterior maxilla: Report of a case. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999;87:351–6. - PubMed
    1. Shakib K, Kalsi H, Tsiridis E, Kumar M. Rare case of bizarre parosteal osteochondromatous proliferation presenting in the zygoma. Br J Oral Maxillofac Surg. 2011;49:e27–9. - PubMed
    1. Dashti HM, Reith JD, Schlott BJ, Lewis EL, Cohen DM, Bhattacharyya I. Bizarre parosteal osteochondromatous proliferation (Nora's lesion) of the mandible. A rare bony lesion. Head Neck Pathol. 2012;6:264–9. - PMC - PubMed

Publication types

LinkOut - more resources