A 20-year-old female presented with ten-year history of progressively worsening pain with prolonged walking and difficulty with footwear (Figs. 1, 2, 3, 4, 5).

Fig. 1
figure 1

Clinical photograph of both feet

Fig. 2
figure 2

Sagittal STIR images of both feet

Fig. 3
figure 3

Coronal PD images of both feet

Fig. 4
figure 4

Axial PD images of both feet

Fig. 5
figure 5

Gross pathological specimens from the right foot (left) and left foot (right)