肠系膜肿瘤的CT诊断价值

目的:探讨CT在肠系膜肿瘤定位、定性及鉴别诊断中的价值。方法:对经手术病理证实的22例肠系膜肿瘤的CT表现,结合其手术病理结果进行回顾性分析。结果:22例肠系膜肿瘤中,18例起源于小肠系膜,4例起源于结肠系膜。其中恶性淋巴瘤9例,平滑肌肉瘤3例,转移瘤4例,平滑肌瘤2例,脂肪肉瘤、恶性上皮样神经鞘瘤、硬纤维瘤、畸胎瘤各1例。所有病例CT均表现为大小、数目不等的软组织肿块,肿块推压或包绕肠管。邻近肠系膜模糊。“夹心饼”征多见于恶性淋巴瘤和转移瘤。结论:CT对肠系膜肿瘤有较大的诊断价值,但对少数病例,其定位、定性诊断仍有一定的限度。

The value of CT diagnosis in mesenteric tumor

Objective:To evaluate CT in localization and qualitative diagnosis of mesenteric tumor.Methods:CT manifestations in 22 patients with pathologically-proved mesenteric tumor were retrospectively analyzed,a comparison with surgical,pathological findings was made.Results:Of 22 cases,the tumor was originated from small intestine in 18,from mesocolon in 4.The lesions included malignant lymphoma(n=9),leiomyosarcoma(n=3),metastatic tumor(n=4),leiomyma(n=2),liposarcoma(n=1),desmoid(n=1),malignant neurilemoma(n=1),teratoma(n=1).The CT manifestation in all cases was solitary mass of soft tissue density,which compressed adjacent loops or encased by loops."Sandwich" sign was seen in malignant lymphomas and metastatic tumor.Conclusion:CT is of great value in diagnosing mesenteric tumor,but in few cases,it has a limit.