Fernandez-Canton Guillermo, Casado Oscar, Capelastegui Ana, Astigarraga Elena, Larena Jose Alejandro, Merino Amaya
OSATEK, Unidades de Resonancia Magnetica, Dr. Areilza 12-16, 48011 Bilbao, Basque Country, Spain.
Skeletal Radiol. 2003 May;32(5):273-8. doi: 10.1007/s00256-003-0622-4. Epub 2003 Mar 22.
To describe the MR findings of bone marrow edema syndrome (BMES) of the foot and its evolution at 1 year follow-up.
Twenty-five of 32 patients with disabling foot and ankle pain unrelated to trauma diagnosed as BMES when MR imaging demonstrated a bone marrow edema pattern in one or more bones without any radiological or underlying clinical cause, were re-evaluated by MR imaging 1 year later.
On the initial MR examinations an average of 4.7 individual bones were involved by bone marrow edema. Soft tissue edema was present in every patient and joint effusion in 10 patients. MR imaging at 1 year showed resolution of bone edema in 18 patients (72%), partial improvement in five (20%) and no improvement in two (8%). Six patients (24%) developed similar symptoms in the other foot during follow-up. Ten of 17 available plain radiographs showed some loss of radiodensity. Further bone marrow edema developed in bones of the same foot that were initially normal, or in uninvolved distant bone marrow areas in the same affected bone, in six of seven patients on follow-up MR imaging.
The evolution of the MR findings of BMES of the foot is to complete resolution or partial improvement at 1 year in the majority of cases. Migration to the other foot occurs in up to a quarter of patients.
描述足部骨髓水肿综合征（BMES）的磁共振成像（MR）表现及其1年随访期内的演变情况。
32例因足部和踝关节致残性疼痛就诊且与创伤无关的患者，经MR成像诊断为BMES，即一个或多个骨骼出现骨髓水肿模式且无任何放射学或潜在临床病因，其中25例患者在1年后接受了MR成像复查。
初次MR检查时，平均有4.7块独立骨骼出现骨髓水肿。所有患者均存在软组织水肿，10例患者有关节积液。1年时的MR成像显示，18例患者（72%）骨髓水肿消退，5例（20%）部分改善，2例（8%）无改善。6例患者（24%）在随访期间对侧足部出现类似症状。17份可用的X线平片中，10份显示有一定程度的骨质密度减低。在随访的MR成像中，7例患者中有6例最初正常的同足骨骼或同一患骨未受累的远处骨髓区域出现了进一步的骨髓水肿。
足部BMES的MR表现演变情况在大多数病例中为1年内完全消退或部分改善。高达四分之一的患者会出现症状转移至对侧足部的情况。
