Multi-Detector-Row Helical CT Features of Hepatic Metastases from Adenocarcinoma of Digestive Tract_CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY

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LI Ping ¹ , SONG Bin ¹ , WU Yinghua ¹ , WU Bi ¹ , XU Juan. ²

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Keywords：

AdenocarcinomaMetastatic hepatic tumor Tomography/X-ray computed

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【Abstract】Objective To investigate the CT imaging features of metastatic hepatic adenocarcinomas from the digestive tract by using multidetectorrow helical CT (MDCT) with pathological correlation.
Methods CT and clinical data of 36 patients with pathologically proven metastatic hepatic adenocarcinomas from the digestive tract were retrospectively reviewed. The primary tumors included 10 cases of gastric cancer, 1 duodenal cancer, 18 colonic carcinoma, 7 rectal cancer. All patients underwent MDCT plain scan and contrastenhanced dualphase scanning of upper or whole abdomen. The appearances of hepatic metastatic lesions on MDCT images at various enhancement phases were carefully observed.
Results On plain CT scan 32 cases （88.9%） presented multiple nodules of low density at different sizes, 3 cases （8.3%） showed a single low-density nodule, and 1 case presented with a cystic mass. On contrast-enhanced scan, 4 cases (11.1%) showed faintly enhanced rim around the nodules on arterial phase; on portal venous phase 29 cases (80.6%) presented slight ringlike enhancement at the periphery of the nodule while the nodule core was markedly hypodense with intermediate soft tissue density area in between, giving rise to the typical appearance of “bull’seye” sign. Three cases (8.3%) showed no enhancement on either phase images.
Conclusion The ring-like enhancement and the appearance of “bull’s-eye” on portal venous phase was characteristic CT features of metastatic hepatic adenocarcinoma from digestive tract.

Citation： LI Ping,SONG Bin,WU Yinghua,WU Bi,XU Juan.. Multi-Detector-Row Helical CT Features of Hepatic Metastases from Adenocarcinoma of Digestive Tract. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2005, 12(5): 518-520. doi: Copy

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1. Abrams HL, Spiro R, Goldstein N. Metastases in carcinoma; analysis of 1 000 autopsied cases [Ｊ]. Cancer, 1950; 3(1)∶ 74.
2. Kan Z, Ivancev K, Lunderquist A, et al. In vivo microscopy of hepatic tumors in animal models: a dynamic investigation of blood supply to hepatic metastases [Ｊ]. Radiology, 1993; 187(3)∶621.
3. Freeny PC, Marks WM. Hepatic perfusion abnormalities during CT angiography: detection and interpretation [Ｊ]. Radiology, 1986; 159(3)∶685.
4. Lin G, Hagerstrand I, Lunderquist A. Portal blood supply of liver metastases [Ｊ]. AJR Am J Roentgenol, 1984; 143(1)∶53.
5. Semelka RC, Hussain SM, Marcos HB, et al. Perilesional enhancement of hepatic metastases: correlation between MR imaging and histopathologic findingsinitial observations [Ｊ]. Radiology, 2000; 215(1)∶89.
6. 丁庆国，曹文洪，唐利吉，等. 肝转移瘤螺旋CT多期扫描 [Ｊ]. 实用医学影像杂志, 2002; 3(4)∶256.
7. 冯晓波，张彦，陈宪，等. 肝转移性肿瘤DSA表现分析 [Ｊ]. 临床放射学杂志, 2000; 19(10)∶637.
8. 吴沛宏，赵明，卢丽霞，等. 螺旋CT多期连续扫描在诊断肝多发性血管瘤及合并肝癌、肝转移瘤中的作用 [Ｊ]. 癌症, 2000; 19(2)∶162.

CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY

Multi-Detector-Row Helical CT Features of Hepatic Metastases from Adenocarcinoma of Digestive Tract

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