[Successful transcatheter embolization of pseudoaneurysm associated with pancreatic pseudocyst].

We reported the case of hemorrhage in the pancreatic pseudocyst and gastrointestinal tract caused by gastroduodenal artery pseudoaneurysm. Transcatheter embolization was done with stainless steel coils and pseudoaneurysm was successfully occluded. We recommend the embolization therapy as the alternative to surgery for high-risk patients.

[Long-term effects of partial splenic embolization (PSE) for hypersplenism].

24 cases of hypersplenism were treated by PSE using Gelfoam particles. In cases with 90% embolized, the mean WBC and platelet counts were improved for 5.0 and 3.

Intraarterial digital subtraction angiography for evaluation of internal mammary artery graft in coronary bypass surgery.

Digital subtraction angiography (DSA) was performed to evaluate graft patency in 60 patients who had undergone coronary artery bypass grafting with the internal mammary artery (IMA). Sixty IMA grafts with 62 distal anastomoses, and 84 saphenous vein grafts with 85 distal anastomoses were evaluated by intraarterial DSA with an image frequency of 4 frames/sec. A No.

Intrahepatic periportal abnormal intensity on MR images: an indication of various hepatobiliary diseases.

The frequency and degree of intrahepatic periportal abnormal intensity (PAI) on magnetic resonance images in patients with or without various hepatobiliary and pancreatic diseases were analyzed. In 63 patients without hepatobiliary disease, except for a small metastatic liver tumor or cavernous hemangioma, no definite PAI was seen. Definite PAI was seen in all patients with obstructive jaundice, cholangitis, and cholangiocellular carcinoma.

Resected case of hepatocellular carcinoma associated with lupoid hepatitis.

A 65 year old woman with lupoid hepatitis developed hepatocellular carcinoma which was diagnosed at an early stage. She had no history of blood transfusion and serum hepatitis B virus markers were negative. Prednisolone and 6-mercaptopurine were administered for the treatment of lupoid hepatitis.

Characterization of a parvovirus isolated from the diarrheic feces of a pig.

A small DNA virus was isolated from the feces of a sow with diarrhea and identified as a parvovirus on the basis of its properties. The virus replicated preferentially in cell cultures of swine origin, including primary porcine thyroid gland and kidney cell cultures in which the cytopathic effect developed. The virus agglutinated erythrocytes of guinea pig, mouse and human group O but not these of chicken.

CT characteristics of intrahepatic, periportal, extramedullary hematopoiesis.

A case of primary myelofibrosis that showed intrahepatic periportal extramedullary hematopoiesis on CT and sonography is presented. Pathological correlation of the autopsy material was obtained. It should be included in the differential diagnosis of periportal abnormality on CT.

[Imaging diagnosis of hepatocellular carcinomas].

With the rapid progress of various imaging methods, including ultrasonography (US), computed tomography. (CT), digital subtraction angiography (DSA) and magnetic resonance imaging (MRI), it has become possible to detect small liver cancer less than 2 cm in diameter, and the prognosis of hepatocellular carcinomas is now improving rapidly. However, the accurate detection of smaller lesions about 1 cm in diameter and their differential diagnosis are difficult by conventional imaging methods such as US, CT and arteriography.

Fatty metamorphosis in hepatocellular carcinoma: radiologic features in 10 cases.

We describe the sonographic, CT and angiographic findings in 10 cases of hepatocellular carcinoma in which extensive fatty metamorphosis occurred within the tumors. Fatty change was diffuse in smaller tumors (less than 3.5 cm) and focal in larger tumors (greater than 3.

Calcification in caval membrane causing primary Budd-Chiari syndrome: CT demonstration.

We report two cases of membranous obstruction of the inferior vena cava (MOIVC) in which we observed patchy calcification in the membrane. The location of the calcification in the membrane was confirmed histologically. This finding was found histologically in four of eight cases of MOIVC, and it is a useful finding in the CT diagnosis of MOIVC.

Liver metastases from colorectal cancers: detection with CT during arterial portography.

A total of 45 metastases to the liver from colorectal cancer were resected in 22 patients. The detectability of these lesions with the following modalities was determined: real-time ultrasound (US), computed tomography (CT), selective celiac arteriography (SCA), infusion hepatic angiography (IHA), CT during arterial portography (CTAP), and CT following intraarterial injection of iodized poppyseed oil (Lipiodol). The total detection rate (sensitivity) was 58% for US, 63% for CT, 27% for SCA, 50% for IHA, 84% for CTAP, and 38% for CT with iodized oil.

Focal fatty change of the liver adjacent to the falciform ligament: CT and sonographic findings in five surgically confirmed cases.

Five cases of surgically confirmed focal fatty infiltration of the liver were detected by CT and sonography. In all five cases, the abnormality was located at the anterolateral edge of the medial segment of the liver. It was seen as a small area of low attenuation adjacent to the falciform ligament on CT and as an echogenic area next to the ligamentum teres on sonography.