From the Departments of Radiology.
Laboratory Medicine and Pathology, College of Medicine, Mayo Clinic, Rochester, MN.
Clin Nucl Med. 2022 Jul 1;47(7):635-637. doi: 10.1097/RLU.0000000000004195. Epub 2022 Apr 5.
Ewing sarcoma is the second most common primary bone tumor in children. Typical Ewing sarcoma most frequently occurs in long bones and within the pelvis. ALES (adamantinoma-like Ewing sarcoma) is a rare subtype of Ewing sarcoma that is characterized by epithelial differentiation in addition to small round blue cells. Unlike typical Ewing sarcoma, ALES has been described in several cases in the head and neck. Herein, we describe a case of a 9-year-old boy with ALES of the mandible evaluated on 18F-FDG PET/CT with correlative MRI scans.
尤因肉瘤是儿童中第二常见的原发性骨肿瘤。典型的尤因肉瘤最常发生在长骨和骨盆内。ALES（类似于造釉细胞瘤的尤因肉瘤）是一种罕见的尤因肉瘤亚型，其特征是除了小圆蓝细胞外还有上皮分化。与典型的尤因肉瘤不同，已有数例头颈部 ALES 的报道。在此，我们描述了一例 9 岁男孩的病例，其下颌的 ALES 经 18F-FDG PET/CT 评估，并与 MRI 扫描相关联。
