1. Acute Comminuted Pathologic Fracture of a Hallucal Sesamoid with Tophaceous Gout by Jae Young Kim, Jung-ho Park, and Jaeho Cho JBJS Case Connect Volume 4(3):e85 September 24, 2014 ©2014 by The Journal of Bone and Joint Surgery, Inc.

2. Anteroposterior radiograph showing fragmentation of the fibular sesamoid. Jae Young Kim et al. JBJS Case Connect 2014;4:e85 ©2014 by The Journal of Bone and Joint Surgery, Inc.

3. CT showing the comminuted fracture of the fibular sesamoid with fragmentation. Jae Young Kim et al. JBJS Case Connect 2014;4:e85 ©2014 by The Journal of Bone and Joint Surgery, Inc.

4. Intraoperative specimen revealed a fragmented and chalky material in the sesamoid. Jae Young Kim et al. JBJS Case Connect 2014;4:e85 ©2014 by The Journal of Bone and Joint Surgery, Inc.

5. Histopathologic examination showed tophi characterized by deposits of needlelike urate crystals (hematoxylin and eosin stain, 100× magnification). Jae Young Kim et al. JBJS Case Connect 2014;4:e85 ©2014 by The Journal of Bone and Joint Surgery, Inc.