Spontaneous Osteonecrosis of the Tarsal Navicular: A Report of Two Cases

Figure 3

Sagittal MRI shows low signal-intensity areas on both T1-weighted images (a) and T2-weighted images (b) in the marrow of the tarsal navicular. Gd-based MRI (c) shows increased uptake in the peripheral tarsal navicular.

(a)

(b)

(c)