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目的提高对恶性蝾螈瘤的影像学认识。方法报告3例经病理证实的恶性蝾螈瘤的CT和MRI表现,并作文献复习。结果本组3例罕见的恶性蝾螈瘤,1例原发于前列腺伴有肺转移和神经纤维瘤病Ⅰ型,1例发生于左侧臀部,1例发生于右侧上颌窦伴有窦壁骨质破坏。CT和MRI表现为较大的软组织肿块影,强烈提示恶性肿瘤,T2WI均呈高信号,其内可见环形低信号分隔影。结论恶性蝾螈瘤尽管最终确诊需依赖病理组织学检查,CT和MRI在定位诊断及鉴别良恶性方面具有重要作用。
Objective To improve the imaging knowledge of malignant salamander tumors. Methods The CT and MRI findings of 3 cases of pathologically confirmed malignant salamander tumors were reported and reviewed. Results The group of 3 cases of rare malignant salamander tumor, 1 case of primary prostate associated with lung metastases and neurofibromatosis type Ⅰ, 1 case occurred in the left hip, 1 case occurred in the right side of the maxillary sinus with sinus wall Bone destruction. CT and MRI showed a large soft tissue mass, strongly suggesting that malignant tumors, T2WI showed high signal, the ring can be seen within the low signal separation. Conclusions Malignant salamander tumor, although the final diagnosis depends on histopathological examination, CT and MRI in the diagnosis and differential diagnosis of benign and malignant plays an important role.