Film X ray radiograph show accessory navicular bone (os navicularum or os tibiale externum)and coalition. This is abnormal development of foot and may cause pain problem. Medical investigation conceptWisler Saint-Vil, MDAugust 5, 2022Foot & Ankle Wisler Saint-Vil, MD Sports Medicine Physician Marietta Memorial Sports Medicine department medical director Articles: 707 Previous Image Library Vertebral Column of Human Skeleton System with Detailed Labels Anatomy Posterior View. 3D Next Image Library Types of femoral shuft fractures. Realistic drawing showing broken bone with inscriptions isolated on whie background.