Foot pain, possible mass Ankle/hindfoot: TENDONS: There is mild increased signal within the peroneus brevis tendon as it courses below the tip of the fibula likely suggesting mild tendinosis and perhaps interstitial tearing. However there is no surrounding tenosynovitis and these findings may not necessarily be of any current clinical significance. The remaining tendons of the ankle are intact.LIGAMENTS: Calcaneofibular ligament appears thickened, possibly from prior sprain. The posterior talofibular ligament also appears slightly thickened which may also reflect prior injury. There is a small lobulated collection of fluid adjacent to the posterior fibers of the posterior talofibular ligament which may represent a small ganglion. The remaining visualized ligamentous structures of the ankle are unremarkable.ARTICULAR SURFACES AND BONE: A small lobulated focus of abnormal signal intensity is noted within the distal fibula and may represent a small cartilaginous rest. There is mild osteoarthritis of the tibiotalar joint with focal cartilage degeneration along the medial aspect of the joint. Increased marrow signal within the medial talar dome may represent a subchondral cyst. ADDITIONAL
1. Healing fracture of the base of the fifth metatarsal.2. Fourth metatarsal lesion further detailed above may represent an enchondroma now with resolution of the surrounding marrow edema seen on the prior exam.3. No evidence of soft tissue mass within the hindfoot or forefoot.4. Mild tibiotalar osteoarthritis and other ankle findings described above.