University of Chicago, Pritzker School of Medicine, Chicago, IL, USA.
Skeletal Radiol. 2014 Jan;43(1):95-8. doi: 10.1007/s00256-013-1709-1. Epub 2013 Aug 24.
Accessory ossicles are common incidental findings on radiographs of the ankle and foot. While typically asymptomatic and of no clinical significance, they are sometimes associated with local pain or even mistaken for pathological conditions such as fractures. Given the potential for misinterpretation, it is important to understand their typical locations and appearances. This case highlights an exceptionally rare accessory ossicle called the os cuboideum secundarium, located adjacent to the cuboid and calcaneus. Interestingly, this case demonstrates the potential for this rare ossicle to mimic a mass on magnetic resonance imaging (MRI). Furthermore, despite the significant improvements in the understanding of musculoskeletal pathology afforded by advancements in cross-sectional imaging techniques, this case is a reminder of certain pitfalls that remain. Lastly, it highlights the importance of radiographs as an initial diagnostic study in evaluating foot pain.
副骨在踝关节和足部的 X 线片上是常见的偶然发现。虽然通常无症状且无临床意义，但它们有时与局部疼痛有关，甚至被误认为是骨折等病理情况。鉴于存在潜在的误解，了解其典型位置和外观非常重要。本病例突出了一种非常罕见的副骨，称为 secondary os cuboideum，位于骰骨和跟骨旁边。有趣的是，本病例表明这种罕见的副骨在磁共振成像 (MRI) 上可能模拟为肿块。此外，尽管横断面成像技术的进步使人们对肌肉骨骼病理学的理解有了显著提高，但本病例提醒人们仍然存在某些陷阱。最后，它强调了 X 线摄影作为评估足部疼痛的初始诊断研究的重要性。
