Tarsal coalition

Tarsal coalition은 tarsal bone의 비정상적인 fibrous, cartilaginous, or bony unions을 말하고 이에 의해 mid foot pain이 생길 수 있는 질환이다.

임상 양상

• M/C: Talocalcaneal coalition, calcaneonavicular coalition
• Symptomatic tarsal coalitions are uncommon

Imaging features

• Talocalcaneal coalition: C sign, Talar beak sign
• calcaneonavicular coalition: Elongated navicular sign, Anteater's nose sign