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Biomedical subjects

K Sugiki

Publications and source records attributed to K Sugiki.

At least 73 records · Page 4Linked to original sources
PubMed1981

CT of hepatoma: effects of portal vein obstruction.

CT images were studied in five patients with hepatocellular carcinoma associated with obstruction of branches of the portal vein. Two were solitary tumors located near the porta hepatis and were seen as low density areas. In addition noncancerous areas with impaired portal drainage also had lower densities than normally perfused areas. In one instance, gross and histologic studies performed on the resected specimen showed atrophy of hepatic tissue. The other three patients had disseminated tumors with multiple low density areas on CT. Additional low density areas were seen in patients with concomitant obstruction of branches of the portal vein. A decrease in portal blood flow will change the appearance of hepatocellular carcinoma of CT.

Adult↗
PubMed1980

Computed tomography and angiography of hepatocellular carcinoma.

Thirty patients with primary hepatocellular carcinoma were studied by computed tomography (CT) and angiography. Tumor images on CT could be classified into four groups according to the differences between precontrast and postcontrast scans. In comparing the findings of angiography and CT, hypervascular tumor shadows on angiography were visualized as low density areas on CT. However, in several cases, the vessel character of the tumor, hypervascularity, and prolonged capillary staining may have been responsible for the CT tumor appearance after contrast medium administration. The studies of cases with therapeutic embolization of the hepatic artery showed a marked decrease in density on CT. Patients with obstruction of branches of the portal vein had homogeneous low densities in the areas drained by the obstructed branches. Although the characteristics of the hepatic artery played an important role, portal blood flow was as significant in determining equally or more noticeably the CT appearance of hepatocellular carcinoma.

Adult↗