Ehara S, Iizuka J, Kattapuram S V
Center for Radiological Sciences, Iwate Medical University.
Nihon Igaku Hoshasen Gakkai Zasshi. 1992 Aug 25;52(8):1116-9.
Radiological findings of Ewing sarcoma have been well documented, and bone expansion or cystic change is known to be a relatively uncommon finding. On the other hand, expected changes in Ewing sarcoma after treatment have also been reported, e.g. regression of extraosseous soft tissue mass, regression and organization of the periosteal reaction, and remodelling of the lytic or sclerotic bone changes. However, remodelling of bone is often limited or incomplete. We saw an atypical change in Ewing sarcoma after treatment due to lack of significant remodelling of the expanding bone. Because such changes might be a cause of misdiagnosis, knowledge of it will help the radiologist in the follow up evaluation.
尤因肉瘤的放射学表现已有充分记录，骨膨胀或囊性变是相对少见的表现。另一方面，也有关于尤因肉瘤治疗后预期变化的报道，例如骨外软组织肿块消退、骨膜反应消退和机化，以及溶骨性或硬化性骨改变的重塑。然而，骨重塑通常是有限的或不完全的。由于膨胀性骨缺乏显著重塑，我们在尤因肉瘤治疗后看到了一种非典型变化。因为这种变化可能是误诊的原因，了解它将有助于放射科医生进行随访评估。
