Differential Diagnosis for Pain in Lateral Ankle, Lateral Foot including Heel
Single Most Likely Diagnosis
- Peroneal Tendinopathy: This condition is characterized by inflammation or degeneration of the peroneal tendons, which run along the lateral aspect of the ankle and foot. It is a common cause of lateral ankle pain, especially in individuals who participate in activities that involve repetitive ankle motion.
Other Likely Diagnoses
- Lateral Ankle Sprain: A common injury that occurs when the ligaments on the outside of the ankle are stretched or torn, often due to rolling or twisting of the ankle. This can cause pain and instability in the lateral ankle and foot.
- Plantar Fasciitis: Although more commonly associated with heel pain, plantar fasciitis can also cause pain in the lateral foot, especially if the plantar fascia is inflamed or irritated in its lateral aspect.
- Cuboid Syndrome: This condition involves the cuboid bone in the midfoot, which can become misaligned or inflamed, causing pain on the lateral side of the foot, including the heel.
Do Not Miss Diagnoses
- Fracture of the Fifth Metatarsal (Jones Fracture): A fracture in the long bone on the outside of the foot, which can be easily missed on initial X-rays. It's crucial to diagnose and treat appropriately to avoid complications like nonunion.
- Osteochondral Lesion of the Talus: A condition where a piece of cartilage and bone in the talus (ankle bone) becomes damaged, which can cause chronic pain and may lead to osteoarthritis if not addressed.
- Peripheral Neuropathy: Certain types of peripheral neuropathy can cause pain in the lateral foot and ankle, especially if the nerves supplying these areas are affected.
Rare Diagnoses
- Tarsal Coalition: An abnormal connection between two or more of the tarsal bones in the foot, which can cause pain and stiffness, especially in the lateral foot and ankle.
- Erythromelalgia: A rare disorder characterized by burning pain, heat, and redness in the hands and feet, which could potentially cause pain in the lateral foot and ankle.
- Gout or Pseudogout: Although more commonly associated with the big toe, these conditions can cause sudden, severe pain in other joints, including those in the lateral foot and ankle.