Usmani Sharjeel, Essa Noora Bin, Marafi Fahad, Rasheed Rashid, Al Kandari Fareeda
Department of Nuclear Medicine,Cancer Control Center, Khaitan, Kuwait.
Department of Nuclear Medicine, Jaber Al Ahmad Molecular Imaging Center,City, Kuwait.
Indian J Nucl Med. 2018 Apr-Jun;33(2):177-179. doi: 10.4103/ijnm.IJNM_165_17.
Os trigonum is a congenital condition in which a bone ossicle fails to fuse to a secondary ossification center in the posterior aspect of the talar bone. Repetitive plantar flexion of the foot may elicit inflammation of the ossicles fibrous connective band, subsequently causing pain. It is common to misdiagnose os trigonum as an avulsion fracture. We report a case of a 23-year-old male with symptomatic os trigonum diagnosed on Tc-99m hydroxymethylene diphosphonate single-photon emission computed tomography-computed tomography (SPECT-CT). We also wish to emphasize on the use of SPECT/CT in not only allocating the ossicle anatomically but also for the purpose of evaluation an active source of pain in a region of multiple complex small bones.
三角骨是一种先天性疾病，其中一块骨小体未能与距骨后部的次级骨化中心融合。足部反复跖屈可能引发骨小体纤维结缔组织带的炎症，进而导致疼痛。三角骨常被误诊为撕脱性骨折。我们报告一例23岁男性有症状的三角骨病例，通过锝-99m亚甲基二膦酸盐单光子发射计算机断层扫描-计算机断层扫描（SPECT-CT）诊断。我们还想强调SPECT/CT不仅在解剖上定位骨小体，而且用于评估多个复杂小骨区域疼痛的活跃来源。
