Tanaka F, Kitano M, Tatsumi A, Huang C, Nagasawa M
Department of Thoracic Surgery, Tenri Hospital, Nara, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1992 Jul;40(7):1125-30.
Primary liposarcomas of the mediastinum are rare neoplasms comprising only 0.13-0.75% of mediastinal tumors. We report a case of liposarcoma arising in the right posterior mediastinum. A 74-year-old man without symptoms was admitted to our hospital for evaluation of an abnormal shadow on chest roentgenogram. Computed tomogram (CT) and magnetic resonance (MR) imaging revealed a mediastinal tumor. The tumor was surgically removed, and the diagnosis of well-differentiated liposarcoma was established. MR imaging was superior to CT in evaluation of tumor extent, but not in differential diagnosis as liposarcoma or lipoma.
纵隔原发性脂肪肉瘤是罕见的肿瘤，仅占纵隔肿瘤的0.13 - 0.75%。我们报告一例发生于右后纵隔的脂肪肉瘤病例。一名74岁无症状男性因胸部X线片发现异常阴影入院。计算机断层扫描（CT）和磁共振（MR）成像显示纵隔有肿瘤。该肿瘤经手术切除，确诊为高分化脂肪肉瘤。在评估肿瘤范围方面，MR成像优于CT，但在鉴别诊断脂肪肉瘤与脂肪瘤时则不然。
