Fig. 8From: Sesamoids and accessory ossicles of the foot: anatomical variability and related pathologyBipartite versus fractured os peroneum. a Bipartite os peroneum (arrow) with two well corticated, rounded ossicles at the calcaneocuboid articulation. b In comparison, a fragmented os peroneum (arrow) with irregular, angulated edges and displacement, consistent with a fractureBack to article page