Barrera-Ochoa S, Lluch A, Gargallo-Margarit A, et al: Bizarre parosteal osteochondromatous proliferation (Nora's lesion) of the hand: a report of two atypical cases. Case Rep Med2012: 453560, 2012.2332627410.1155/2012/453560)| false
Chamberlain AM, Anderson KL, Hoch B, et al: Benign parosteal osteochondromatous proliferation of the hand originally diagnosed as osteochondroma: a report of two cases and review. Hand (N Y)5: 106, 2012.
Chamberlain AM, Anderson KL, Hoch B, et al: Benign parosteal osteochondromatous proliferation of the hand originally diagnosed as osteochondroma: a report of two cases and review. Hand (N Y)5: 106, 2012.10.1007/s11552-009-9217-4)| false
Flint JH, Mckay PL: Bizarre parosteal osteochondromatous proliferation and periosteal chondroma: a comparative report and review of literature. J Hand Surg32: 893, 2007.10.1016/j.jhsa.2007.04.004http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000248195000021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=b7bc2757938ac7a7a821505f8243d9f3)| true
Nora's lesion, or bizarre parosteal osteochondromatous proliferation (BPOP), is a rare benign lesion that is made up of varying degrees of cartilage, bone, and spindle cells. Most notably, calcification of the cartilage or “blue bone,” is a feature of the disorder. The condition principally affects long tubular bones of the hands and feet, and is generally seen in patients in their second and third decades of life. We present a case of BPOP occurring in the second interspace with symptoms that would be consistent with a more common diagnosis of predislocation syndrome, or a second interspace neuroma. This case study may help the clinician in considering a more subtle cause of a splay deformity in the second interspace, and walk through the diagnostic and treatment course for BPOP.
Corresponding author: Anthony J. Mollica, DPM, Saint John Hospital and Medical Center, 22201 Moross Rd, Ste 250, Detroit, MI 48236. (E-mail: email@example.com)