No abstract available.
Carcinoma, Renal Cell*

No abstract available.
Diagnosis* ; Maternal Age*

Sinus histiocytosis with massive lymphadenopathy(SHML) is a benign, generally selflimited pseudolymphomatous disease that typically appears with cervical massive lymphaclenopathy. Extranodal involvement including skin occurs in the 28% of the cases. We report a case af SHML in 51 year-old male who had several, prominent firm masses ranging from 1-10cm in the cervical, axillary, inguinal areas and multiple, plum colored nodules and plaques in the face, trunk for about 10 years. The histopathological findings of cervical lymph node, facial nodule showed dense heavy infiltration of large histiocytes with abundant pale eosinophilic cytoplasm in the subcapsular and medullary sinuses of lymph node and dermis of skin. No atypical cells suggesting malignancy is seen in the infiltrates. The patient had been treated with combination of prednisolone and vinblasstine, but he expired 1 month later.
Cytoplasm ; Dermis ; Drug Therapy ; Eosinophils ; Histiocytes ; Histiocytosis, Sinus* ; Humans ; Lymph Nodes ; Male ; Middle Aged ; Prednisolone ; Prunus domestica ; Skin

Proliferating cell nuclear ntigen (FCNA) iis a nuclear protein that is syntheaimd in late Gl and S phases of cell cycle and is correlated with the cell proliferative stale. The recent study demonstrated that FCNA functions in 13NA replication. The present study evaluated proliferetive iindices (PI) for the assessment of tumor proliferation and for investigating prognostic significancx, in cervical tumors. lmmunohiatoehemical PCNA staining was perfurmed in formalin-fixed paraffin-embedded cervical tissues via the avidin-biotin-complex immunoperoxidase methad. Mean PI was 36.03+/-5.14% in normaI controls, as compared to 66.19+/-11.36% in cerviml intraepithelial neoplasia. and 63.19+/-10.94% in invasive cervical cancer. Our results showed no significant correlation between Pll and histological type. Among invasive cervical cancer (24 cases), PI waa 64.43+/-10.94% in squamoua cell carcinoma and 59.00+/-4.10% in adenocarcinoma. There was no eipiifiant relationship between Fl and clinical etage, and between PI and lesion size. This study auggeste that Pl may not serve as a new prognostie factor in cervical tumors.
Adenocarcinoma ; Cell Cycle ; Nuclear Proteins ; Proliferating Cell Nuclear Antigen* ; S Phase ; Uterine Cervical Neoplasms

Psoriasis is characterized by disregulation of keratinocyte growth with profound epidermal hyperplasia. Keratinocyte hyperplasia in psoriasis may be expained in part by overproduction of growth factor, and by altered metabolism of the epidemal growth factor receptors (EGFR) in affected skin. The expression of epidermal growth f ictor receptor was investigated by Northern blot and slot-blot analysis of total RNA extrated from biopsies of normal skin and psoriatic lesions. In Northern blot analysis, EGFR-specific mRNA transcripts from psoriatic tissues demonstrated the specificity of hybridizarion with a EGFR mDNA probe. The size of EGFR mRNA transcript was 6.7kb in psoriasis lesions which showed no change of quality. In slot-blot analysis, the levels of EGFR mRNA in poriasis revealed a 1.2 fold to 4.1 fold elevation when compared to normal skin. EGFR were present in all epidermal layers by immunoperoxidase staining, whereas in normal skin they were primarily present in the stratum basalis. These results indicate that the increased expresion of the EGFR gene may be, in part, responsible for the hyperproliferation of the epider nis and that retained EGFR may reflect incomplet; abnormal differentiation in active porasis. This altered process of EGFR metabolism may be involved in the pathogenesis of psoriasis.
Biopsy ; Blotting, Northern ; Epidermal Growth Factor* ; Genes, erbB-1 ; Hyperplasia ; Keratinocytes ; Metabolism ; Psoriasis* ; Receptor, Epidermal Growth Factor* ; Receptors, Growth Factor ; RNA ; RNA, Messenger ; Sensitivity and Specificity ; Skin

The toxicity and adrenostatic effect of o,p'-DDD, a derivative of the insecticidal DDT, on the adrenal cortex were well known. It known that the toxicity was based on the blocking of steroid biopsynthesis when cholesterol was converted to pregnenolone. Lysodren(R) was also known to be capable of producing a regression of adrenocortical carcinoma and its metastases, and this drug became one of useful choice for the treatment of unoperable adrenocortical carcinomas. Recently, fine structural effect of o,p'-DDD on the adrenocortical carcinoma show that the mitochondria is the primary target organelle. o,p'-DDD was dissolved in corn oil and it was orally administered for 28 days to investigate the ultrastructural effects of zona fasciculata of rat adrenal cortex. The results obtained were as follow: 1) The body weight was decreased after feeding o,p'-DDD. 2) Light microscopic examination showed no remarkable change except increased fine lipid droplets of zona fasciculata in group I (o,p'-DDD 75 mg/kg feeding). Moderately increased intracytoplasmic lipid droplets and pyknotic nuclei bearing membrane indentations were seen in group II (o,p'-DDD 150 mg/kg feeding). Large sized lipid droplet aggregates, pyknotic nuclei with severe nuclear membrane indentations and karyorrhexis in focal area were evident in group III. 3) Immunohistochemical staining for ACTH in pituitary gland showed increasing number of ACTH secretory cell and increasing intensity of staining property according to the dosage of o,p'-DDD. 4) Ultrastructural examination showed increased intracytoplasmic lipid droplets and mild increased peroxisome. There was no remarkable ultrastructural changes in mitochondria in group I. Moderately increased lipid droplets and clusters formation, compressed mitochondria, partial disappearance of mitochondrial cristae, increased peroxisome and nuclear membrane indentations were seen in group II. In group III, nuclear membrane showed prominent indentation. Numberous cytoplasmic vacuolation, double membrane ring in mitochondria, disappearance of mitochondrial cristae, myelin figure formation in mitochondrial matrix, and fatty changes in mitochondrial matrix were seen. These findings showed that the primary target organelle of attack by o,p'-DDD on zona fasciculata of adrenal gland in rat is mitochondria and it was developed from double ring formation in mitochondrial matrix.
Rats ; Animals

BACKGROUND: The Histidine-Tryptophan-Ketoglutarate (HTK) solution has been shown to provide the excellent myocardial protection as a cardioplegia. The HTK solution has relatively low potassium as an arresting agent of myocardium, and low sodium content, and high concentration of histidine biological buffer which confer a buffering capacity superior to that of blood. Since HTK solution has an excellent myocardial protective ability, it is reported to protect myocardium from ischemia for a considerable time (120 minutes) with the single infusion of HTK solution as a cardioplegia. The purpose of this study is to evaluate the cardioprotective effect of HTK solution on myocardium when the ischemia is exceeding 120 minutes at two different temperature (10 to 12degrees C, 22 to 24degrees C) using the Langendorff apparatus. MATERIAL AND METHOD: Hearts from Sprague-Dawley rat, weighing 300 to 340 g, were perfused with Krebs-Henseleit solution at a perfusion pressure of 100 cm H2O. After the stabilization, the heart rate, left ventricular developed pressure (LVDP), and coronary flow were measured. Single dose of HTK solution was infused into the ascending aorta of isolated rat heart and hearts were preserved at four different conditions. In group 1 (n=10), hearts were preserved at deep hypothermia (10~12degrees C) for 2 hours, in group 2 (n=10), hearts were preserved at moderate hypothermia (22~24degrees C) for 2 hours, in group 3 (n=10), hearts were preserved at deep hypothermia for 3 hours, and in group 4 (n=10), hearts were preserved at moderate hypothermia for 3 hours. After the completion of the preservation, the heart rate, left ventricular developed pressure, and coronary flow were measured at 15 minutes, 30 minutes, and 45 minutes after the initiation of reperfusion to assess the cardiac function. Biopsies were also done and mitochondrial scores were counted in two cases of each group for ultrastructural assessment. RESULT: The present study showed that the change of heart rate was not different between group 1 and group 2, and group 1 and group 3. The heart rate was significantly decreased at 15 minutes in group 4 compared to that of group 1 (p<0.05 by ANCOVA). The heart rate was recovered at 30 minutes and 45 minutes in group 4 with no significant difference compared to that of group 1. The decrease of LVDP was significant at 15 minutes, 30 minutes and 45 minutes in group 4 compared to that of group 1 (p<0.001 by ANCOVA). Coronary flow was significantly decreased at 15 minutes, 30 minutes, and 45 minutes in group 4 compared to that of group 1 (p<0.001 by ANCOVA). In ultrastructural assessment, the mean myocardial mitochondrial scores in group 1, group 2, group 3, and group 4 were 1.02+/-0.29, 1.52+/-0.26, 1.56+/-0.45, 2.22+/-0.44 respectively. CONCLUSION: The HTK solution provided excellent myocardial protection regardless of myocardial temperature for 2 hours. But, when ischemic time exceeded 2 hours, the myocardial hemodynamic function and ultrastructural changes were significantly deteriorated at moderate hypotherma (22~24degrees C). This indicates that it is recommended to decrease myocardial temperature when myocardial ischemic time exceeds 2 hours with single infusion of HTK solution as a cardioplegia.
Animals ; Aorta ; Biopsy ; Cardioplegic Solutions ; Heart Arrest, Induced ; Heart Rate ; Heart* ; Hemodynamics ; Histidine ; Hypothermia ; Ischemia ; Myocardium ; Organ Preservation ; Perfusion ; Potassium ; Rats* ; Rats, Sprague-Dawley ; Reperfusion ; Sodium

The clinical diagnosis of ankylosis can be made only when the affected tooth gives positive evidence of an inability to move. The inability to move is demonstrated either as a failure of the tooth to move with normal vertical dental alveolar growth or a failure of the tooth to move when the tooth is subjected to an orthodontic force system. This case report describes the autotransplantation of an ankylosed maxillary canine.
Ankylosis ; Tooth

PURPOSE: To evaluate the degree of contrast enhancement of intracranial tumors on delayed (6-8min.) MR imaging after administration of Gd-DTPA. MATERIALS AND METHODS: Both immediate and delayed post-contrast MR imagings were studied prospectively in 35 patients. with brain tumors (11 gliomas, 6 meningiomas, 4 neurinomas, 5 parencymal metastases, 5 hemangioblastoma, 4 others) at either 0.5 T or 2.0 T unit. After precontrast TI-, proton-density, and T2-weighted spin echo images were obtained, each patient underwent Tl-weighted imaging immediately following infusion of 0.1 mmol/Kg of Gd-DTPA. Subsequently, the second postcontrast Tl-weighted images were obtained with no additional injection of the contrast media. Time-interval between the postcontrast immediate and the delayed images was approximately 6-8 minutes. Degree of contrast enhancement of the lesions was assessed both visually and quantitatively. For quantitative study, contrast enhancement ratio(CER) of tumors was calculated in both immediate and delayed post-contrast images. RESULTS: There was stronger visual enhancement in 7 of 11 cases with gliomas and 3 of 5 cases with parenchymal metastasis on delayed images when compared with immediate images, whereas all 10 cases of extraaxial tumors(meningiomas and neurinomas) showed decreased enhancement on delayed images. Quantitatively, mean CERs of gliomas and metastases were higher on delayed study than on immediate study by 20. 5% and 49.2%, respectively. Extraaxial tumors showed decrease of CER on delayed study by 19.7% as compared with that of immediate study. Hemangioblastomas showed visually poor enhancement on delayed image in 4 cases and equal enhancement on both immediate and delayed images in remaining one case, and quantitatively demonstrated decrease of CER on delayed study by 15.4%. CONCLUSION: Since there was more conspicuous contrast enhancement in many intraaxial tumors such as gliomas and metastases on 6-8 minutes delayed post-contrast MR study, the delayed post-contrast study may be needed in some intraaxial tumors for their characterization, and may also be helpful for the differential diagnosis between intraaxial and extraaxial tumors.
Brain Neoplasms* ; Brain* ; Contrast Media ; Diagnosis, Differential ; Gadolinium DTPA ; Glioma ; Hemangioblastoma ; Humans ; Magnetic Resonance Imaging* ; Meningioma ; Neoplasm Metastasis ; Neurilemmoma ; Prospective Studies

Many people who sustain injuries to the femur or muscles of thigh are handicapped for life by varing degree of limitation of motion of the knee joint flexion such as squatting or kneeling. Many surgical procedures were reported by Thompson (1944), Judet (1959), van Nes (1962), Nicoll (1963), Hesketh (1963), Jahng (1965), Han (1979, 1986), and Daoud (1982). During the period from March 1987 to August 1989, 12 cases of stiff knee joint were treated surgically in our clinics. l. 12 cases of stiff knee treated by modified Judet technique of quadricepsplasty and arthrolysis. 2. The stiff knee was corrected successfully without release of rectus femoris muscle in our cases. 3. The string tie was very useful in postoperative care. String tie was applied with the knee in a full flexed position and when it was discarded, knee was extended and quadriceps setting exercise was begun. 4. In 10 cases, plate removal was added, in two eases, combined bone surgery and quadricepsplasty for malunion or nonunion of the femur, which showed good results. 5. The average flexion achieved by operation was 119.6, the average flexion gain 70.8, while the average extension gain 8.8. 6. By Judet criteria, the result of 11 cases were excellent and one case showed fair result.
Disabled Persons ; Femur ; Humans ; Knee Joint ; Knee ; Muscles ; Postoperative Care ; Quadriceps Muscle ; Thigh