Ankle pain

DDx

• Ankle sprain, eg, anterior talofibular ligament
• Fibular fracture
• Tibial avulsion fracture
• Arthritis, eg, gout, rheumatoid arthritis
• Posterior tibial tendinitis (pain posterior to medial malleolus)
• Peroneal tendonitis (pain at lateral malleolus)
• Arterial insufficiency ulcer with or without osteomyelitis
• Neuropathic arthropathy (Charcot joint)
• Avascular necrosis