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本文分析了65例术前CT诊断为胰头癌的CT征象和其中18例的LADSA表现,手术、病理证实CT诊断正确率为91％,提出胰头肿块是CT诊断胰头癌的直接征象,但并非特异性表现,需与胰头炎性肿块鉴别;“双管征”及胰周大血管脂肪层消失可出现在肿瘤,炎症等病变中。通过比较分析12例胰头癌和CT误诊的5例胰头炎性肿块的LADSA表现,作者认为通过显示胰头癌的肿瘤区异常血管,不规则、不均匀的“肿瘤染色”,胰周血管破坏,对胰头癌的诊断和鉴别诊断具有重要意义。
This article analyzed 65 CT signs of CT diagnosis of pancreatic head cancer and 18 cases of LADSA manifestations. The correct rate of CT diagnosis was 91%. Surgical and pathological confirmed CT head mass was a direct sign of CT diagnosis of pancreatic head cancer. However, it is not a specific manifestation. It needs to be differentiated from the pancreatic head inflammatory mass. The disappearance of the “double tube sign” and the fat layer of the pancreatic perivascular vasculature may occur in the lesions such as tumors and inflammation. Through comparative analysis of LADSA manifestations in 12 cases of pancreatic head cancer and CT misdiagnosis of 5 cases of pancreatic inflammatory lumps, the authors believe that by showing abnormal blood vessels in the tumor area of the pancreatic head cancer, irregular, uneven “tumor staining”, pancreatic vasculature Destruction is of great significance in the diagnosis and differential diagnosis of pancreatic cancer.