Chew F S, Hudson T M
Radiology. 1980 Sep;136(3):741-5. doi: 10.1148/radiology.136.3.6250201.
Radionuclide imaging with technetium-99m phosphate compounds was performed in 18 patients with deep-seated soft-tissue masses. The histologically established diagnosis was intra- or intermuscular lipoma in 13 patients and liposarcoma in five. Radionuclide scans demonstrated disparate scintigraphic characteristics in these two often clinically similar lesions. Soft-tissue radionuclide accumulation occurred in two lipomas and corresponded to radiographically evident calcification. All liposarcomas were uncalcified and demonstrated intense radionuclide activity. This activity may be related to the angiographic and histologic hypervascularity of liposarcomas, which is also demonstrable on computed tomography as contrast enhancement; hence, these modalities offer the same nonspecific diagnostic information. It is concluded, however, that plain radiography and radionuclide scaning should suffice to establish the diagnosis of lipoma.
对18例深部软组织肿块患者进行了锝-99m磷酸盐化合物放射性核素显像。组织学确诊为13例肌内或肌间脂肪瘤，5例脂肪肉瘤。放射性核素扫描显示这两种临床上常相似的病变具有不同的闪烁显像特征。2例脂肪瘤出现软组织放射性核素聚集，且与X线片上明显的钙化相符。所有脂肪肉瘤均无钙化，表现为强烈的放射性核素活性。这种活性可能与脂肪肉瘤的血管造影和组织学上的血管增多有关，在计算机断层扫描上也可显示为对比增强；因此，这些检查方法提供相同的非特异性诊断信息。然而，得出的结论是，普通X线摄影和放射性核素扫描应该足以确诊脂肪瘤。
