Fig. 19
From: Sesamoids and accessory ossicles of the foot: anatomical variability and related pathology
Symptomatic accessory navicular. Axial proton density-weighted (a) and T2-weighted fat-saturated (b) MRIs demonstrate abnormal marrow signal in a type II accessory navicular (black arrows), adjacent navicular tubercle (asterisks) and synchondrosis (white arrows). In addition, sagittal STIR MRI (c) reveals posterior tibial tenosynovitis (arrowhead). The patient presented with medial foot pain