os naviculare syndrome

Low calcaneal pitch with calcaneal inclination angle measuring 7° suggestive of pes planus

 Patchy bone marrow edema involving the medial aspect of navicular bone associated with tiny accessory navicular bone at the lateral aspect  with focal thickening of supero-medial component of the spring ligament at navicular attachment with surrounding edema – suggestive of os naviculare syndrome

 Small ankle joint effusion.