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Biomedical subjects

K Takayasu

Publications and source records attributed to K Takayasu.

At least 127 records · Page 7Linked to original sources
PubMed1984

Hepatic arterial embolization for hepatocellular carcinoma. Comparison of CT scans and resected specimens.

Transcatheter hepatic arterial embolization (THAE) was performed in 18 patients with hepatocellular carcinoma (HCC) and the final CT scans (with and without contrast enhancement) compared with the resected specimen after a short interval (9.8 days +/- 9.9 S.D.). The necrotic area observed histologically corresponded closely to the constant low-density area seen on the CT scan (r = 0.959) in all but 2 cases. The authors conclude that CT closely reflects gross anatomical changes and is useful in assessing THAE as well as deciding if and when embolization should be repeated, especially in patients with negative serum alpha-fetoprotein.

Aged↗
PubMed1984

Splenic infarction, a complication of transcatheter hepatic arterial embolization for liver malignancies.

Splenic infarction was recognized in five of 37 patients who had hepatic neoplasms and who were being examined after transcatheter hepatic arterial embolization by CT during a follow-up study. CT images of the spleen showed multiple low density areas of a wedge or fused-wedge shape in most patients and of a rod or round shape in others. These low density areas decreased in size in time, and in two patients they disappeared in three months. Three of the five patients complained of a dull pain in the left upper quadrant that did not require any treatment. CT is effective in the diagnosis and assessment of splenic infarction. Awareness of this complication will help to avoid it when hepatic arterial embolization is being performed.

Adult↗
PubMed1984

Primary Budd-Chiari syndrome: ultrasonic demonstration.

Three cases of primary Budd-Chiari syndrome were found by ultrasonic examination. These were confirmed by hepatic venography and inferior vena cavography. The ultrasound findings in these patients included communicating vessels between hepatic veins, enlarged inferior right hepatic vein, reversed blood flow in the hepatic vein, and obstruction of the inferior vena cava. With these findings, ultrasound can be used to diagnose primary Budd-Chiari syndrome without hepatic venography or inferior cavography.

Aged↗
PubMed1984

Sonographic detection of large spontaneous spleno-renal shunts and its clinical significance.

The ultrasonographic findings of large spleno-renal shunts seen in five patients with liver cirrhosis and confirmed by CT and/or portography, are described. These spleno-renal shunts were seen in the left inter- or subcostal sections as transonic, mass-like lesions located between the splenic hilum and the left kidney, and by continuous scanning, they were found to be part of a tortuous, large tubular structure. Oesophageal varices were absent or minimal in these patients, and none of them had ever bled.

Aged↗
PubMed1983

False-positive liver scans due to portal hypertension: correlation with percutaneous transhepatic portograms in 33 patients.

Tc-99m-phytate scanning of the liver and percutaneous transhepatic catheterization of the portal vein were performed in 33 patients--26 with cirrhosis, 3 with chronic active hepatitis, 2 with idiopathic portal hypertension, and 2 with unresolved acute hepatitis. A discrete defect in the porta hepatis area was seen in 6 of 28 patients who had portal vein pressure above 200 mm H2O. In 5 of the 6 patients with a false-positive scan, the umbilical portion of the left portal vein branch was dilated (larger than 25 x 20 mm) on the portogram, with or without a patent paraumbilical vein. The anatomical basis of this phenomenon is discussed, and it is suggested that this area be given special attention.

Adult↗
PubMed1983

[Autopsy case of extra-neural metastasis of suprasellar pineal germinoma].

A 19-year-old boy was admitted with a suprasellar tumor. On May, 1980 he underwent craniotomy and subtotal tumor removal. The pathological diagnosis was germinoma. In July, 1981, a solitary angiomatous tumor appeared in the left back skin and was resected. The pathological diagnosis was choriocarcinoma, thus, a final diagnosis of suprasellar choriocarcinoma was made. At the first admission, his LH was 100 miu/ml; FSH, 2.4 miu/ml, while; at the second admission, LH was 500 miu/ml; FSH, 9.9 miu/ml, HCG, 13000 miu/ml. Irradiation combined with chemotherapy brought no improvement of his symptoms and he died. At autopsy, multiple metastatic foci were recognized in the lungs, liver, kidney, intestine, skin and brain.

Adult↗
PubMed1982

Spontaneous reversal of portal blood flow demonstrated by percutaneous transhepatic catheterization: report of two cases.

Two patients are described in whom percutaneous transhepatic catheterization of the portal vein for a hemodynamic study demonstrated a continuous reversed blood flow in the portal vein, entering into a large collateral. The measurements made of blood pressure in the superior mesenteric, splenic, and left gastric veins, and of ammonia, immunoreactive insulin, and C-peptide in blood taken from these and peripheral veins all indicated reversed portal vein blood flow. The evidence for retrograde portal vein blood flow was obtained in only 2 of 203 patients with cirrhosis in whom portal hemodynamics were studied by the same procedure. Thus, spontaneous reversal of portal vein blood flow does occur, but very rarely.

Blood Pressure↗