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目的探讨黏液型脂肪肉瘤(MLS)的CT表现和诊断价值。方法搜集经手术病理证实的18例MLS,对其大小、形态、边界、密度、内部结构及增强扫描特征进行回顾性CT影像分析,并探讨这些征象在诊断与鉴别诊断中的价值。结果 18例瘤体平均最大径12 cm;11例呈类圆形,7例呈不规则形;15例边界清晰,3例边界不清并侵犯周围肌肉;18例均表现为低密度肿块伴瘤内纤维分隔,其中4例伴软组织密度结节或肿块,7例伴脂肪密度灶,1例伴钙化灶,增强扫描不同程度不均匀强化。术后随访发现9例复发,其中5例伴发转移瘤,包括单纯肺外转移4例,肺内外转移1例。结论 CT在MLS的诊断与鉴别诊断中具有重要的价值。
Objective To investigate the CT findings and diagnostic value of mucinous liposarcoma (MLS). Methods Collected 18 cases of proven pathology confirmed by MLS, the size, shape, border, density, internal structure and enhanced scanning features of retrospective CT image analysis, and explore the value of these signs in the diagnosis and differential diagnosis. Results The average diameter of the tumor in 18 cases was 12 cm. Eleven cases were round and 7 cases were irregular. The border was clear in 15 cases, the border was unclear in 3 cases and infiltrated the surrounding muscles. All the 18 cases showed low density mass with tumor Intra-fiber separation, of which 4 cases with soft tissue density nodules or lumps, 7 cases with fat density foci, 1 case with calcification, enhanced scanning uneven enhancement in varying degrees. Follow-up was found in 9 cases of recurrence, of which 5 cases with metastases, including simple pulmonary metastases in 4 cases, 1 case of pulmonary metastases. Conclusion CT is of great value in the diagnosis and differential diagnosis of MLS.