Cubonavicular Coalition in a Middle-Aged Woman: A Case Report.

Cubonavicular coalition is a rare type of tarsal coalition that can be described as osseous or nonosseous (fibrous, cartilaginous, or fibrocartilaginous). Typically, it manifests symptoms during adolescence, as it presents with pain at the Mid-hindfoot and with decreased range of motion at the midtarsal joints, hindfoot valgus deformity, or peroneal spasm. Here, we present a rare case of cubonavicular coalition in a middle-aged woman with atypical presentation and a review of the literature. We conclude that this abnormality should be taken into account in the differential diagnosis of mid-hindfoot pain, even in middle-aged adults.