28-year-old female with chronic but sharp pain at the first tarsometatarsal joint. No acute fractures identified. The first tarsometatarsal joint is unremarkable. There is a type II accessory navicular. Very minimally increased T2 signal is identified in the accessory fragment and primary navicular bone. Findings are consistent with minimal edema due to possible bone contusion.The Achilles, flexor, extensor, and peroneal tendons are unremarkable. The deltoid and talofibular ligaments are intact. The articular cartilage of the ankle joint is within normal limits. The sinus tarsi demonstrates normal appearance. No significant joint effusion is identified.
1.Type II accessory navicular with minimal bone marrow edema suggestive of contusion.2.No articular or soft tissue injury identified.