Bizarre parosteal osteochondromatous proliferation (Nora’s lesion) in the medial sesamoid of the first toe

Onur Tetik, Lercan Aslan, Kadir Buyukdogan, Mehmet Chodza, Onder Kilicoglu Bizarre parosteal osteochondromatous proliferation, or Nora’s lesion, is a unique bony lesion that generally originates from the small bones of the hands and feet in young adults. We report a case of a bizarre parosteal osteochondromatous proliferation originating from the medial sesamoid of the first toe that was managed surgically by en bloc excision. At 5-year follow-up, there was no evidence of recurrence.