Tarsal coalition is an abnormal connection between bones in the foot that can cause pain, stiffness, or repeated sprains.
Symptoms can include pain or stiffness around the back or middle of the foot, flat feet, repeated ankle sprains, and pain that gets worse with activity.
Imaging helps confirm that foot bones are abnormally connected and shows whether the bridge is bony, fibrous, or cartilaginous.
X-rays, CT, and MRI can help show whether the connection is bony, fibrous, or cartilaginous.
Treatment may include activity modification, orthotics, physiotherapy, or surgery depending on symptoms and severity.
This entry explains the condition. The next step is having a radiologist interpret your specific scan, not a general definition.