Co-Occurrence of os peroneum and accessory navicular bone in a foot: a rare presentation

Accessory ossicles most of the times found incidentally in the foot and they vary widely in their appearance, combinations and prevalence. Accessory ossicles are mostly asymptomatic but sometimes these may become symptomatic due to trauma, degeneration, inflammation, infection etc. Knowledge of their presence and variations is required among clinicians to prevent misinterpreting them as fractures—a common error. Os trigonum, os perineum and accessory navicular are the most commonly seen accessory ossicles in the foot. In review of literature, we didn’t find a single case with co-occurrence of os perineum and accessory navicluar in a foot which prompts us to report our case 35 years/male who found to have incidental finding of os peroneum and accessory navicular both in his right foot on radiographs after a fall on stairs.