El-Khayat Bara, Eley Karen A, Shah Ketan A, Watt-Smith Stephen R
Department of Oral & Maxillofacial Surgery, Oxford Radcliffe Hospitals NHS Trust, Oxford, UK.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Jan;109(1):e5-e10. doi: 10.1016/j.tripleo.2009.08.004.
Ewings sarcoma (ES) is a rare tumor, most commonly encountered within the long bones during the first 20 years of life.
We report the sixth case of ES of the zygoma, occurring in a 31-year-old male, and presenting a unique reconstructive opportunity. Diagnosis and preoperative planning were aided by CT/MR coregistration. Surgical reconstruction using 3D reconstructed CT images to produce an anatomically correct model provided the basis for a gold prosthesis construction.
Delayed definitive reconstruction provided opportunity for adequate tumor recurrence surveillance, and definitive histological diagnosis. The artefact produced on MR imaging from gold implants is minimal, permitting the unrestricted identification of potential future recurrence.
This case highlights the benefits of coregistration of radiological imaging, and custom-made gold prostheses providing the advantage of artefact-free MR imaging, which should be considered in patients requiring resection of zygomatic tumors and subsequent reconstruction.
尤因肉瘤（ES）是一种罕见肿瘤，最常见于20岁之前的长骨中。
我们报告了第6例颧骨尤因肉瘤，患者为一名31岁男性，该病例提供了独特的重建机会。CT/MR配准有助于诊断和术前规划。使用3D重建CT图像进行手术重建以生成解剖学上正确的模型，为定制金假体构建提供了基础。
延迟确定性重建为充分的肿瘤复发监测和确定性组织学诊断提供了机会。金植入物在磁共振成像上产生的伪影最小，从而能够无限制地识别未来潜在的复发情况。
该病例突出了放射影像学配准以及定制金假体的益处，定制金假体具有无伪影磁共振成像的优势，对于需要切除颧骨肿瘤并随后进行重建的患者应予以考虑。
