No abstract available.
Biopsy, Fine-Needle* ; Breast*

Transcatheter hepatic arterial embolization (THAE) is one of the treatment modalities that can be applied to hepatocellular carcinomas (HCC) and metastatic tumors of the liver. Complications such as cholecystitis and gallbladder necrosis, are common with THAE, but liver and peripheral bile duct necrosis are rare, and intrahepatic stones with main bile duct necrosis have never been reported. To prevent intrahepatic spread during operative manupulation and to decrease the vascularity and size of the tumor, we performed a THAE on a huge-sized HCC five times before performing the hepatectomy. We succesfully undertook a right lobectomy after the THAE with lipiodol, gelform, and adriamycin. However, severe bile duct stricture and intrahepatic stones were confirmed during the operation.
Bile Ducts* ; Bile* ; Carcinoma, Hepatocellular ; Cholecystitis ; Constriction, Pathologic* ; Doxorubicin ; Ethiodized Oil ; Gallbladder ; Hepatectomy ; Liver ; Necrosis

PURPOSE: The purpose of this study was to evaluate the CT findings of acute pyelonephritis (APN) in children and to assess the correlation between these findings, clinical parameters and renal scar development, as seen on follow-up CT scans. MATERIALS AND METHODS: Contrast-enhanced CT scans of thirty children in whom APN had been diagnosed were assigned to one of three groups according to whether an abscess had formed, and then to subgroups on the basis of the number of lesions in the renal parenchyme. Initial CT findings were retrospectively correlated with five clinical parameters (maximal body temperature, fever duration, leukocytosis, pyuria and admission period) and renal scar development, as seen on follow-up CT (n=12). RESULTS: CT scans demonstrated linear, wedge-shaped, low-density renal parenchymal lesions in 35 kidneys of 25 patients and abscesses in seven kidneys of seven patients, but no abnormal lesions in five patients. In the three groups there was correlation between these findings and some clinical parameters (maximal body temperature, fever duration and admission period), but no subgroup showed significant correlation with any clini-cal parameter. Renal cortical scars detected by follow-up CT were more prevalent in patients in whom initial CT demonstrated the presence of an abscess. CONCLUSION: Clinical parameters correlated with the presence of renal parenchymal hypoenhancing lesions and abscess formation, as seen on CT scans, rather than the number of renal parenchymal lesions. Renal cortical scars were more prevalent in patients in whom initial CT revealed the presence of an abscess. Enhanced CT is thought to be useful both for diagnosing APN and for predicting its clinical course in children.
Abscess ; Body Temperature ; Child ; Cicatrix ; Fever ; Follow-Up Studies ; Humans ; Kidney ; Leukocytosis ; Pyelonephritis* ; Pyuria ; Retrospective Studies ; Tomography, X-Ray Computed

PURPOSE: To evaluate diagnostic usefulness of ultrasonography(US) in pediatric patient with urinary tract infection. MATERIALS AND METHODS: Fifty-five children with urinary tract infection underwent renal ultrasonography and voiding cystourethrography(VCUG). The imaging findings were analyzed retrospectively. RESULTS: Renal sonograms were normal in 34 of 55 children(62%). Five of 34 patients with normal sonogram had vesicoureteral reflux of grade I to III on VCUG. Renal sonograms were abnormal in 21 of 55 children(38%). Sonographic findings included hydronephrosis, hyperechoic kidney, nephromegaly, atrophic kidney, renal abscess, and duplex ureter. Eleven of 21 patient with abnormal SOhogram had vesicoureteral reflux of grade I to IV on VCUG. CONCLUSION: Ultrasonography is an useful and reliable initial screening examination in the investigation of children with UTI. Unfortunately US is neither sufficiently sensitive nor specific for detecting VUR. VCUG provides confirmative and valuable information about vesicoureteral reflux, and VCUG should be considered as a next modality for UTI. The combined use of sonography and VCUG provides more valuable information in urinary tract infection.
Abscess ; Child* ; Humans ; Hydronephrosis ; Kidney ; Mass Screening ; Retrospective Studies ; Ultrasonography* ; Ureter ; Urinary Tract Infections* ; Urinary Tract* ; Vesico-Ureteral Reflux

PURPOSE: The purpose of the study was to compare CT with scintigraphy in the detection of parenchymal lesionsof acute pyelonephritis in children, and to assess the diagnostic value of CT. MATERIALS AND METHODS: This studyinvolved 32 children with acute pyelonephritis ; their ages ranged from 1 month to 10 years. Renal CT , TC-99mDMSA planar and SPECT images, and medical records were retrospectively reviewed. We evaluated the number, size,shape, density, and location of pyelonephritic lesions, as seen on CT and scintigraphic images. RESULTS: In 43involved kidneys, 193 parenchymal lesions of acute pyelonephritis were identified. The results of CT were abnormalin 42 kidneys (98%), and those of scintigraphy, in 39(91%). CT showed single or multiple hypoenhancing parenchymallesions ; these were streaky(n=151), wedge-shaped (n=34), or oval (n=8), and ranged from about 3-30mm in maximumdiameter. Abscess (n=5), renal fascial thickening (n=6) and thickening of the bridging septae (n=7) wereassociated. Scintigraphic findings were diffuse or localized area of varying degrees of diminished corticalactivity, and these were more precisely identified on SPECT than on planar images. For the detection of 55 of 193pyelonephritic lesions, CT was more sensitive than scintigraphy ; 29 of the 55 lesions were less than 5 mm indiameter. CONCLUSION: For the detection of pyelonephritic lesions, particularly smaller ones, and for theevaluation of complications such as abscess formation, CT is more sensitive than Tc-99m DMSA scintigraphy. Weconclude that in children with subtle scintigraphic findings who are in serious clinical condition or in whomcomplications are suspected, CT is a useful tool for assessing a therapeautic plan and the prognosis of acutepyelonephritis.
Abscess ; Child* ; Humans ; Kidney ; Medical Records ; Prognosis ; Pyelonephritis* ; Radionuclide Imaging* ; Retrospective Studies ; Succimer* ; Tomography, Emission-Computed, Single-Photon

Primary renal lymphoma is a rare tumor of the kidney that typically presents with bilateral nodular enlargement in the absence of extrarenal masses. We describe MR findings of a case of primary renal lymphoma along with ultrasound and CT findings. MR imaging demonstrated globular enlargement of both kidneys with multilobulated contour and multiple masses which had isosignal intensity on T1WI and low signal intensity on T2WI. The masses enhanced slightly on dynamic contrast enhanced scan.
Kidney ; Lymphoma* ; Magnetic Resonance Imaging ; Ultrasonography

Stress distribution on mandibular implants supporting overdentures were registered in vitro experimental model by means of 4 rosette gauges which were placed around the implant. The overdenture attachments used in this study were the Resilient Dolder bar, Rigid Dolder bar, Round bar, Hader bar&Dal-Ro attachment. An occlusal jig was placed on the overdenture and the loading sites were 3 points which mimicked working, balancing, and median relations. With 5 and 10kg loading, strains were measured by strain indicator(P-3500, Measurement group, Raleigh, USA), and using these data, maximum and minimum principal stresses and Von Mises stress were calculated and evaluated. The results were as follows: There was a tendency of high stress concentration in the lingual side of the implant, and in the buccal side low stress was developed regardless of the attachment systems. The resilient Dolder bar concentrated highest stress among the attachment systems, and the Round bar and the Dal-Ro attachment provided comparatively low stresses around the implant. The rigid Dolder bar concentrated high stress in the mesial side, and the Dal-Ro attachment developed tensile stress patterns in the lingual and distal sides of the implant at the balancing relation.
Denture, Overlay* ; Models, Theoretical

BACKGROUND: Patients infected with Staphylococcus aureus related to the use of propofol have been reported. The purpose of this study was to assess and compare the growth of S. aureus in propofol, thiopental, midazolam and ketamine. METHODS: These intravenous anesthetics were inoculated with S. aureus and they were plated onto blood agar at 0, 3, 6, 21, 24 and 27 hrs. The number of colony forming units (CFU) on the plate was counted after 24 hours of incubation. RESULTS: Samples from ketamine and midazolam showed no CFU at the 3 hr and thereafter. The 21hr, thiopental exhibited no CFU. The inoculated propofol emulsion showed a significant increase in number of CFU at the 21, 24 and 27hr compared with the zero time (P<0.05). CONCLUSIONS: This study shown that propofol was the only anesthetic that provided a medium for the growth of S. aureus. Therefore when handling propofol, meticulous sterile technique is advised.
Agar ; Anesthetics ; Anesthetics, Intravenous* ; Humans ; Ketamine ; Midazolam ; Propofol ; Staphylococcus aureus* ; Staphylococcus* ; Stem Cells ; Thiopental

A pair of eyes of a 18 year-old girl with advanced congenital glaucoma was examined by light and electron microscopy. Results were as follows: 1. Trabecular meshwork and iris root showed fibrosis. 2. Schlemm's canal was absent. 3. Endothelium of the trabecular meshwork was degenerated. 4. Ciliary body was atrophied. 5. Inner layer of retina showed degeneration with the loss of nerve fiber layer and ganglion cell layer, which was replaced by Mueller cells. 6. Optic nerve showed atrophy from a loss of nerve fibers and there was proli feration of collagen tissue.
Adolescent ; Atrophy ; Ciliary Body ; Collagen ; Endothelium ; Female ; Fibrosis ; Ganglion Cysts ; Glaucoma* ; Humans ; Iris ; Microscopy, Electron ; Nerve Fibers ; Optic Nerve ; Retina ; Trabecular Meshwork

BACKGROUND: The Cobas(R) Integra is a new automated chemistry analyzer with continuous and random-access features for routine chemistries, specific proteins, electrolytes, therapeutic drugs and drugs of abuse. The system maintains 68 test-specific reagent cassettes on board and have test principles of absorbance photometry, immunoturbidometry, fluorescence polarization and ISE measurements. We evaluated the usefulness of Cobas(R) Integra in the aspect of accuracy, precision, linearity, comparison study, test speed and general performance. METHODS: We evaluated the analytical performance of the Cobas(R) Integra for T. bilirubin, CRP, BUN, creatinine, sodium, potassium, chloride, valproic acid, phenytoin and carbamazepine according to NCCLS guidelines (EP5-T2, EP6-P, EP9-T and GP10-T). RESULTS: In accuracy study, error ranges(%) of most test items, except sodium and chloride, were within analytic goals. In within-run and between-run precision study, Coefficient of variation (CV, %) of most items, except sodium, were lower than limits suggested by College of American Pathologists Survey 1991. The linearities were maintained well in the range of medically significant levels and were statistically acceptable (p<0.001). The comparison study for most items, except sodium and chloride, indicated good correlation with Hitachi 747 and TDx FLx(TM) and correlation coefficients (r) were above 0.98. Throughput was about 450 tests/hr. CONCLUSIONS: Cobas(R) Integra showed satisfactory accuracy, precision, linearity, good correlation with other analyzers and high throughput. So, we concluded that Cobas(R) integra is highly suitable for not only routine use but also emergency tests in medium to large-sized hospitals because of its high productivity and reliability.
Bilirubin ; Carbamazepine ; Chemistry* ; Creatinine ; Efficiency ; Electrolytes ; Emergencies ; Fluorescence Polarization ; Phenytoin ; Photometry ; Potassium ; Sodium ; Street Drugs ; Valproic Acid