López-Martín Néstor, De Miguel Ignacio, Calvo Emilio
Department of Orthopaedic Surgery, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain.
Acta Orthop Belg. 2005 Dec;71(6):732-5.
We report the case of a patient with a long standing clinical history of subacromial impingement, in which plain radiographs and CT-scan revealed a well-circumscribed lucent lesion expanding the undersurface of the acromion. MRI showed the subacromial fat to be completely obliterated and the infraspinatus tendon deformed due to compression by a mass localised at the acromion. The acromial lesion was curetted, and histopathologic analysis was consistent with the diagnosis of enchondroma. Tumours located in the coracoacromial arch have been very rarely reported as a cause of subacromial impingement. To the best of our knowledge, this is the first description of subacromial impingement secondary to acromial enchondroma.
我们报告了一例有长期肩峰下撞击临床病史的患者，其X线平片和CT扫描显示肩峰下表面有一个边界清晰的透亮病变。MRI显示肩峰下脂肪完全消失，冈下肌腱因位于肩峰处的肿块压迫而变形。对肩峰病变进行了刮除术，组织病理学分析与内生软骨瘤的诊断一致。位于喙肩弓的肿瘤作为肩峰下撞击的原因很少被报道。据我们所知，这是首次对肩峰内生软骨瘤继发肩峰下撞击的描述。
