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. 2013 Sep 5;4(5):581–593. doi: 10.1007/s13244-013-0277-1

Fig. 15.

Fig. 15

Degeneration at a synchondrosis. a Long-axis axial CT image shows an apparently normal type II accessory navicular (arrow) with a preserved synchondrosis with the navicular tubercle. b In comparison, this long-axis axial CT image of a different foot depicts increased sclerosis and fragmentation of a type II accessory navicular (white arrow) and fragmentation of the navicular tubercle at the synchondrosis (black arrow) consistent with degenerative change