No abstract available.
Pancreatic Pseudocyst*

No abstract available.
Leukocytes*

Because primary lymphoma of the appendix is a very rare disorder and commonly presented as acute appendicitis,it is seldom diagnosed by preoperative imaging study. We encountered a patient with pathologically proved primaryappendiceal lymphoma associated with acute and chronic appendicitis. Ultrasonogram revealed a non-compressiblesausage-shaped hypoechoic mass with a linear hyperechoic center caused by mucosa-lumen interface in right lowerquadrant. Post-contrast CT examination showed a markedly enlarged target-like appendix with obliteration of thelumen; the outer layer showed higher attenuation than the central portion. There were also multiple strands in theperiappendiceal fat and thickening of adjacent lateroconal fascia and colonic wall, and this suggested acuteappendicitis associated with appendiceal lymphoma.
Appendicitis* ; Appendix ; Colon ; Fascia ; Humans ; Lymphoma* ; Ultrasonography

No abstract available.
Chloroquine* ; Edetic Acid* ; Glycine* ; Immunoglobulin G*

PURPOSE: We performed this study to evaluate the usefulness and the limitation of magnetic resonance angiography in imaging portal vein and hepatic vein. MATERIALS AND METHODS: Magnetic resonance portography was performed in five normal subjects and seven patients with hepatomas, two patients with Budd-Chiari syndromes, one patient with liver cirrhosis and one patient with hepatic metastasis from stomach cancer. Magnetic resonance angiography was done with a 1.5-T Scanner. Breath-hold two-dimensional time-of flight images with spoiled gradient echo technique were acquired. Scan parameters were 34/8/40degrees(TR ms/TE ms/flip angle). The portal vein and the hepatic vein were selectively imaged by applying two presaturation bands. These images were then postprocessed by a maximum intensity projection algorithm. MRA findings were compared with ultrasonography in all cases of the hepatic disease, and conventional angiography (SMA portography) in four cases. RESULTS: In normal subjects, the splenic vein, intrahepatic and extrahepatic portions of the portal vein, and the hepatic veins were well visualized. In the patients with hepatic diseases, the varices (4 cases), the splenorenal shunts (2 cases), and the recanalized umbilical vein (1 case) were demonstrated. There were portal vein thrombosis in the cases of hepatomas and hepatic metastasis. In the cases of Budd-Chiari syndrome, the hepatic veins were not visualized and there were inferior vena cava obstructions with multiple collateral vessels. CONCLUSION: Compared with ultrasonography, MRP may be useful in evaluation of varices, splenorenal shunts, and other collaterals, though less accurate than conventional angiography. MRP can be useful as a noninvasive screening alternative in the evaluation of portal vein and hepatic veins.
Angiography ; Budd-Chiari Syndrome ; Carcinoma, Hepatocellular ; Hepatic Veins ; Humans ; Liver Cirrhosis ; Magnetic Resonance Angiography ; Mass Screening ; Neoplasm Metastasis ; Portal Vein ; Portography* ; Splenic Vein ; Splenorenal Shunt, Surgical ; Stomach Neoplasms ; Ultrasonography ; Umbilical Veins ; Varicose Veins ; Vena Cava, Inferior ; Venous Thrombosis

PURPOSE: In order to evaluate microstructural changes after shock wave exposure, gross, light microscopic and transmission electron microscopic findings were analyzed with rabbit gallgladders. MATERIALS AND METHODS: A preliminary study(2 rabbits) was performed to determine the dosage intensity of shock waves needed to inflict damage, using a EDAP LT 01 piezoelectric extracorporeal shock wave Iothotriptor. The gallbladders of three different groups of rabbits were given shock waves of various intensity. A storage value of 100, 50, 25 at rate of 20/sec under 80% power were given to group I (4 rabbits), group II( 4 rabbits), and group III(3 tabits), respectively. The rabbits were sacrified 6--12 hours later. RESULTS: The observed pathologic changes in the transmission electron microscopy were vaculization of cytoplasm and swelling of epithelial cells with dilatation and structural alteration of intracellular organelles, especially endoplasmic reticulum. Cell membrane rupture and necrosis were observed at the markedly affected area. The structural changes of intracellular organelles were minimally found at a storage value of 25. However, above pathologeic changes with dilatation and structural alterations of endoplasmic reticulums were more profund at value of 100. CONCLUSION: Early histologic changes induced by shock waves are dose dependent and the findings of cellular damage caused by ESWL might be explained as above.
Cell Membrane ; Cytoplasm ; Dilatation ; Endoplasmic Reticulum ; Epithelial Cells ; Gallbladder* ; Microscopy, Electron, Transmission ; Necrosis ; Organelles ; Rabbits ; Rupture ; Shock*

This is to report the technique of reversed iliac leg stent-graft in endovascular treatment for isolated internal iliac artery (IIA) aneurysm, which had significant size discrepancy between the common iliac artery (CIA) and external iliac artery (EIA) in 3 patients from different hospitals. Three patients were a 85- and two 82-year-old men. Treated were right IIA aneurysms, sized 6.5x6.2 cm, 5.0x4.0 cm, and 4.1 cm in longest diameter, respectively. The diameters of the right CIA and right EIA measured 21 mm/11 mm, 15 mm/11 mm, and 20 mm/10 mm, respectively. In all cases, reversed iliac leg stent-grafts were prepared on-site; unsheathed and mounted upside-down manually, and deployed in each right CIA. Post-stent-graft angiograms showed complete exclusion of the aneurysms, except for minimal type 1 endoleak in one case. This technique is a useful treatment option in patients with isolated IIA aneurysm.
Aged, 80 and over ; Aneurysm* ; Endoleak ; Endovascular Procedures ; Humans ; Iliac Aneurysm ; Iliac Artery* ; Leg* ; Male

Cysticercosis infestation is a cosmopolitan disease. Recently we experienced six cases of intracranial cysticercosis in childhood, three of them were male and their age distributed from 2 to 15 years. Their main clinical manifestations were symptoms of increased intracranial pressure signs and other neurological sings as well, In diagnostic procedures, brain C-T scan was performed in all cases and Conray ventriculography was very helpful in cases of intra-ventricular location of cysticerci. By surgical exploration, single cysticerci were removed from 4 th ventricle in five cases, and cysticercus racemosus was found in subdural space in one cases. Five cases were successfully cured and one case was died of persistent brain swelling after surgical manipulation.
Brain ; Brain Edema ; Cysticercosis* ; Cysticercus ; Humans ; Intracranial Pressure ; Male ; Subdural Space

OBJECTIVE: This study aimed to investigate factors associated with incomplete occlusion of a cerebral aneurysm detected by indocyanine green videonangiography (ICG-VA) following aneurysm clipping. METHODS: We performed surgery on 135 patients with 151 intracranial aneurysms over a 1-year period. Included was an aneurysm more than 3 mm in size, the dome of which was sufficiently exposed and clipped permanently with one clip. Following ICG-VA, aneurysms were divided into a delayed-filling group and a no-filling group. Retrospective comparisons of the clip force, blade length and width, neck and dome size of the aneurysm, diameter of the parent artery, presence of atherosclerosis in the aneurysm neck, and systolic blood pressure during ICG-VA were made between the two groups. RESULTS: Eight of 31 aneurysms in 29 patients showed delayed filling of contrast. The clip force in the delayed-filling group was lower than in the no-filling group and the atherosclerosis of the aneurysm neck differed between the two groups (P<0.05). Blade width in the delayed-filling group was also significantly lower than in the no-filling group (P<0.05). Following adjustment for atherosclerosis of the aneurysm neck, clip force and blade width in the delayed-filling group was even lower. Incomplete passage of the clip tip was observed in four aneurysms, weak clip force in three, and a slit between clip blades in one. After booster clipping or clip reposition, neither aneurysm regrowth nor recanalization was observed during 6 months of follow-up. CONCLUSION: Closing force, blade width, tip position, and remnant slit are important for incomplete occlusion of an aneurysm.
Aneurysm ; Arteries ; Atherosclerosis ; Blood Pressure ; Humans ; Indocyanine Green ; Intracranial Aneurysm ; Neck ; Parents ; Retrospective Studies

We investigated the mechanism of Cl- secretion by fluoroaluminate(AlF4-) and sodium orthovanadate(vanadate) using the human colonic T84 cell line. T84 cell monolayers grown on collagen-coated filters were mounted in Ussing chambers to measure short circuit current(ISC). Serosal addition of AlF4- or vanadate to T84 monolayers produced a sustained increase in ISC. Removal of Ca2+ from the serosal bathing solution partially inhibited AlF4-(-)and vanadate-induced ISC, and readministration of Ca2+ restored AlF4-(-)and vanadate-induced ISC. Carbachol application in the presence of forskolin, AlF4- or vanadate induced a synergistic increase of ISC. Forskolin and vanadate significantly increased cellular cAMP level, while carbachol and AlF4- did not. Carbachol, AlF4- and vanadate significantly increased [Ca2+]i. After Na+ in mucosal bathing solution was replaced with K+, and the mucosal membrane of T84 cell was permeabilized with amphotericin B, AlF4-, vanadate, and carbachol increased K+ conductance, but forskolin did not. After sodium chloride in serosal bathing solution was replaced with sodium gluconate and the serosal membrane was permeabilized with nystatin, forskolin, AlF4-, and vanadate increased Cl- conductance, but carbachol did not. AlF4-(-)induced ISC was remarkably inhibited by the pretreatment of pertussis toxin(2 micrograms/ml) for 2 hours. These results indicate that AlF4- and vanadate can increase Cl- secretion via simultaneous stimulation of Cl- channel and K+ channel in T84 cells. However, the AlF4- action is mostly attributed to stimulation of pertussis toxin-sensitive G-proteins, whereas the vanadate action mostly results from G protein-independent mechanisms.
Aluminum/*pharmacology ; Amphotericin B/pharmacology ; Carbachol/pharmacology ; Cell Polarity ; Cells, Cultured/drug effects ; Chloride Channels/drug effects/*physiology ; Chlorides/*physiology ; Colon ; Electrophysiology ; Fluorine/*pharmacology ; Forskolin/pharmacology ; GTP-Binding Proteins/physiology ; Human ; Pertussis Toxin ; Potassium/pharmacology ; Potassium Channels/drug effects/physiology ; Second Messenger Systems ; Signal Transduction ; Support, Non-U.S. Gov't ; Vanadates/*pharmacology ; Virulence Factors, Bordetella/pharmacology