The Analysis Of CT Characteristic Of Hepatic Metastases In Different Organs Source

Objective: To analyze the CT features of hepatic metastases in different organs sources.Methods: Retrospective collected 749 cases of patients diagnosed with primary extrahepatic cancer, the 392 male,age range 28 to 94 years,mean age 62.10±11.37,357 female,aged range 26 to 85 years,mean age 56.69±11.55 years;Including gastric cancer180 cases,colorectal cancer 168 cases, pancreatic cancer 98 cases,breast cancer 92 cases,ovarian cancer 78 cases, lung cancer 75 cases,gallbladder cancer 58 cases.The analysis including the location of hepatic metastases, distribution, shape, size, number, density and enhancement features.Results:1.Collected 180 cases of gastric cancer hepatic metastasis: solitary metastasis 56 cases, multiple metastases 124 cases; 168 cases of colorectal cancer hepatic metastases: solitary metastasis 32 cases, multiple metastases 136 cases;98 cases of pancreatic cancer hepatic metastasis: solitary metastasis 11 cases,multiple metastases 87 cases;breast cancer hepatic metastasis 92 cases:solitary metastasis 20 cases,multiple metastases 72 cases;75 cases of lung cancer hepatic metastasis:solitary metastasis 7 cases,multiple metastases 68 cases;gallbladder cancer hepatic metastases 58 cases:solitary metastasis 4 cases,multiple metastases 54 cases;ovarian cancer hepatic metastasis 78 cases:hepatic metastases 95;44 of 68 perihepatic metastasis did not show signs of liver parenchymal invasion and 24 did.There are also other sources of organs metastases liver capsule and subcapsular transfer gap appears,eight cases of gastric cancer 8 cases,colorectal cancer 7 cases,pancreatic cancer 4 cases, lung cancer 3 cases,breast cancer 4 cases,There were significant difference between ovarian cancer perihepatic metastasis and other sources of perihepatic metastasis(χ2 = 89.403 P=0.000).21 cases of gastric cancer, 10 cases of gallbladder cancer and 5 cases of pancreatic cancer in direct violation of the liver. 2.The majority metastatic maximum diameter is 1~5cm,accounting for 69.39%(1342/1934). The siza of 36 cases of breast cancer hepatic metastases is the uniform,10mm-30 mm majority, accounting for 50%(92/184);3.The main form of hepatic metastases is round or oval accounted for 88.88%(1719/1934), irregular shape accounting for 8.89%(172/1934),sheet immersion accounted for 2.22%(43/1934); The majority of sheet immersion in lung cancer hepatic metastases accounted for 60.46%(26/43).4.The main hepatic metastatic is low-density lesions accounted for 86.81%(1679/1934), density lesions accounted for 5.17%(100/1934),slightly higher density lesions accounted for 2.63%(51/1934),cystic density lesions accounted for 5.37%(104/1934).5.The main strengthen the way of hepatic metastases is homogeneous or(and) heterogeneous accounted for 48.44%(937/1934),the edge of ring enhancement accounted for 19.80%(383/1934); 6.The specific signs of hepatic metastases: calcification occur in hepatic metastases of 35 casesgastric cancer 19 cases, colon cancer 9 cases, pancreatic cancer 3 cases,lung cancer,2 cases,ovarian cancer 2 cases, There were significant difference in different sources of hepatic metastases in calcification(χ2=29.136 P=0.000);Peritumoral abnormal perfusion 51 cases:gastric cancer 20 cases,pancreatic cancer 12 cases,colon cancer 9 cases,lung cancer 5 cases, gallbladder cancer 3 cases,breast cancer 2 cases,ovarian cancer 5 cases, There were no significant difference in different sources of hepatic metastases in peritumoral abnormal perfusion(χ2=9.005 P=0.173);The "bull’s-eye sign" 133 cases:gastric cancer 35 cases, colon cancer 27 cases, pancreatic cancer 19 cases, breast cancer 15 cases,lung cancer 12 cases,gallbladder cancer 10 cases,ovarian cancer 5 cases,there were no significant difference in different sources of hepatic metastases in "bull’s-eye sign"(χ2 =8.910 P=0.179); The "like cyst enhancement " 51 cases:gastric cancer 20 cases,colon cancer 13 cases,pancreatic cancer 10 cases,ovarian cancer 4 cases, gallbladder cancer 2 cases, lung cancer 2 cases,there were no significant difference in different sources of hepatic metastases in " llike cyst enhancement "(χ2 =23.442 P=0.001).The "Truncated bowel syndrome" :8 cases of colon cancer; "rosette-like" strengthening:4 cases of gallbladder; "liquid-liquid" yndrome: 3 cases of pancreatic cancer.Conclusion:1.The perihepatic metastasis is the main CT characteristics of ovarian cancer;2.The majority of sheet immersion in lung cancer hepatic metastases;3.The size of the hepatic metastases of breast cancer is the uniform;4.The pancreatic cancer liver metastases peritumoral abnormal perfusion the high than the surrounding normal liver parenchyma in the delay phase;5.The calcification more common in gastrointestinal cancer(stomach, colon).