MelladoJM, RamosA, SalvadóE, et al: Accessory ossicles and sesamoid bones of the ankle and foot: imaging findings, clinical significance and differential diagnosis. Eur Radiol13(suppl 4): L164, 2003.10.1007/s00330-003-2011-8)| false
The accessory navicular bone (ANB) is one of the most common accessory ossicles of the foot. Fewer than 1% of ANBs are symptomatic, and most of the symptomatic ANBs are type II ANBs. Avascular necrosis of the type II ANB is an uncommon cause of symptomatic accessory navicular syndrome and also a rarely reported condition in the podiatric medical literature. This rare disorder must be distinguished from other painful conditions of the ANB and should be considered in differential diagnoses. We present a case of avascular necrosis of the type II ANB with sclerosis on radiographs and magnetic resonance images in a 46-year-old woman.
Corresponding author: Furkan Erdoğan, MD, Department of Orthopedics and Traumatology, Ondokuz Mayis University Faculty of Medicine, 55139 Atakum, Samsun, Turkey. (E-mail: firstname.lastname@example.org)