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目的探讨CT定位诊断网膜囊内邻近脏器来源肿瘤的价值。资料与方法回顾性分析33例经手术病理证实的邻近脏器来源的网膜囊肿瘤的CT资料,主要观察肿瘤与胃小弯侧血管弓的关系,肿瘤与肝脏及其血管的关系以及肿瘤与胰腺及肠系膜上血管的关系。结果 33例中,肿块均与肝脏和/或胃壁和/或胰腺关系密切,缺乏明确的脂肪间隙。9例胃源性肿瘤中,8例肿块边缘显示胃小弯侧血管弓和拉直的属支血管,肿块与胃之间未显示血管弓;24例非胃源性肿瘤中,22例肿块与胃之间显示胃小弯侧血管弓。8例肝脏源性病变中,肝脏实质缺损4例,肝脏血管进入肿块6例,1例门静脉瘤栓形成。16例胰腺源性病变中,肠系膜上血管和/或分支前移15例,肿块包绕侵袭脾血管13例。结论根据肿瘤与胃小弯侧血管弓及其属支血管的关系、肿瘤与肝脏及其血管以及肿瘤与胰腺及肠系膜上血管的关系,CT检查可对网膜囊内邻近脏器来源肿瘤做出定位诊断。
Objective To investigate the value of CT in the diagnosis of neoplasms of the internal organs in the omental sac. Materials and Methods Retrospective analysis of CT data of 33 cases of omental cysts with adjacent organs confirmed by surgery and pathology mainly focused on the relationship between tumors and vascular bow of the lesser curvature of the stomach, the relationship between the tumor and the liver and its blood vessels, The relationship between pancreas and mesenteric vessels. Results In all 33 cases, the lumps were closely related to the liver and / or the stomach wall and / or the pancreas, lacking a definite fat gap. Of the 9 gastric tumors, the margins of the tumor showed the lesser curvature side of the vessel bow and straightened vessels, and no bow between the tumor and the stomach was found. Of the 24 non-gastric tumors, 22 Gastrocnemius shows lesser curvature of the vessel bow. Of the 8 cases of liver-derived lesions, 4 were liver parenchymal defects, 6 were hepatic vessels into the tumor and 1 was portal vein tumor thrombus. Among the 16 cases of pancreatic-derived lesions, 15 cases of superior mesenteric vessels and / or branches advanced and 13 cases of tumor-invading splenic vessels surrounded the tumor. Conclusions According to the relationship between the tumor and the lesser curvature side of the vessel bow and its branches, the relationship between the tumor and the liver, its blood vessels, and the tumors and the pancreas and the superior mesenteric vessels, the CT examination can make the tumor of the adjacent organ origin in the omental capsule Positioning diagnosis.