No abstract available.
Leukemia* ; Leukemia, Megakaryoblastic, Acute*

Turner's syndrome results from complete or partial monosomy of the X chromosome and is characterized by hypogonadism or related other congenital anomalies in phenotypic females. In these patients, there are failure to develop normal secondary sex characteristics, amenorrhea, or short stature at puberty and the ovaries are reduced to atrophic fibrous strands devoid of ova and follicles(streak gonads). Individuals with this condition are particularly prone to the development of gonadoblastoma. For this reason, the gonads should be early removed and supplemental estrogen therapy given. We experienced a case of Turner's syndrome, 45, XO/46, XY karyotype in a 20-year-old phenotypic female complained an amenorrhea. On the exploratory laparotomy, the right gonadal mass is sevearly adhered to the adjacent organs and measures 8 x 5 x 5 cm in dimension and 75gm in weight and shows multiple foci of hemorrhage with necrosis. The left streak gonad measures 3.5 x 2 x 1.5 cm in dimension and shows multiple foci of calcification. Microscopically, the right gonadal mass reveals malignant mixed germ cell tumor, composed of endodermal sinus tumor, composed of endodermal sinus tumor with dysgerminoma and gonadoblastoma. The left streak gonad consists of mainly dense fibrous connective tissue and shows some foci of calcification associated with gonadoblastoma. On immunohistochemical and special stainings, the cytoplasm and hyalin droplets of the endodermal sinus tumor component reveal strong positivity to the a-fetoprotein and PAS. After removal of both gonads, the serum level of the a-fetoprotein is markedly down from 1742ng/ml to 2.6 ng/ml.
Female ; Humans

The clinicopathology of nine cases of eccrine spiradenoma was examined. The ages of the patients ranged from 32 to 65 years, with an average age of 46 years. There were four males and five females. Eight tumors out of the nine presented on the ventral surface of the upper body. The tumors were solitary in seven cases and multiple in two cases(cases 8 and 9). Six tumors were either painful or tender to palpation. Histologically, two cases(cases 1 and 2) were adenomas with well developed tubular structures, while the remaining seven cases were epitheliomas with poor organization and prominent reticular pattern. All tumors were composed of two distinct cell types. Since four cases showed considerable edema with a lot of cystic change, it was difficult in some areas to differentiate these from other adnexal tumors or vascular tumors. Immunohistochemical staining was performed on paraffin-embedded sections of 5 eccrine spiradenomas. CEA and EMA were expressed in the cytoplasm of tumor cells in all cases. Cytokeratin was expressed in 4 out of 5 cases, and S-100 in 3 out of 5 cases. There has been no evidence of recurrence in 8 cases. In one case(case 9) the tumor recurred locally with carcinomatous transformation- characterized by the presence of solid areas of tumor which was composed of large cells with irregularly shaped nuclei and mitotic figures. There were foci of ductal differentiation, extensive areas of tumor necrosis and invasion into surrounding connective tissue. The carcinomatous portion revealed positive reaction for CEA, EMA, S-100 protein and cytokeratin.
Female ; Male ; Humans ; Adenoma

BACKGROUND: Single pass lead VDD pacing preserves atrioventricular synchrony with a single lead system which incorporates floating atrial electrodes. The objectives of this study were to measure whether different body postures and physical activities cause significant changes of the atrial electrogram amplitudes and to evaluate the effectiveness of its atrial sensing, ventricular sensing and pacing. METHOD: Prospective study was done in 7 patients with high degree AV block and normal sinus node function in whom a single lead VDD pacing system was implanted. The P wave amplitude was been measured in different condition during follow-up period. RESULTS: 1) During follow-up period, the P wave amplitude showed variation with changes in posture and respiration, but there was no consistent increase or decrease in amplitude. The lowest P wave amplitude was above the minimal atrial sensing value of 0.2 mV. 2) The percentage of atrial synchronous ventricular pacing recorded in Holter ECG and during Treadmill exercise test was more than 99%. 3) Atrial oversensing or VA cross sensing were not observed in any of the patients. CONCLUSIONS: Despite floating atrial electrode, the single pass lead VDD pacing maintains reliable atrial sensing and ventricular pacing in different body position and physical activity, so it may offer an excellent alternative in patients with high grade AV block and intact sinus node function.
Atrioventricular Block ; Electrocardiography ; Electrodes ; Electrophysiologic Techniques, Cardiac ; Exercise Test ; Follow-Up Studies ; Humans ; Motor Activity* ; Posture ; Prospective Studies ; Respiration ; Sinoatrial Node

BACKGROUND: Single pass lead VDD pacing preserves atrioventricular synchrony with a single lead system which incorporates floating atrial electrodes. The objectives of this study were to measure whether different body postures and physical activities cause significant changes of the atrial electrogram amplitudes and to evaluate the effectiveness of its atrial sensing, ventricular sensing and pacing. METHOD: Prospective study was done in 7 patients with high degree AV block and normal sinus node function in whom a single lead VDD pacing system was implanted. The P wave amplitude was been measured in different condition during follow-up period. RESULTS: 1) During follow-up period, the P wave amplitude showed variation with changes in posture and respiration, but there was no consistent increase or decrease in amplitude. The lowest P wave amplitude was above the minimal atrial sensing value of 0.2 mV. 2) The percentage of atrial synchronous ventricular pacing recorded in Holter ECG and during Treadmill exercise test was more than 99%. 3) Atrial oversensing or VA cross sensing were not observed in any of the patients. CONCLUSIONS: Despite floating atrial electrode, the single pass lead VDD pacing maintains reliable atrial sensing and ventricular pacing in different body position and physical activity, so it may offer an excellent alternative in patients with high grade AV block and intact sinus node function.
Atrioventricular Block ; Electrocardiography ; Electrodes ; Electrophysiologic Techniques, Cardiac ; Exercise Test ; Follow-Up Studies ; Humans ; Motor Activity* ; Posture ; Prospective Studies ; Respiration ; Sinoatrial Node

No abstract available.
Antibodies, Antineutrophil Cytoplasmic* ; Incidence*

BACKGROUND: Hyperlipidemia is the one of the major risk factors causing the atherosclerosis of coronary arteries. Treatment of hyperlipidemia with drugs has been confirmed the effects of therapy showing a decreased incidence of coronary artery disease. Pravastatin is one of the new HMG-CoA reductase inhibitors and we studied the short-term hypolipidemic effects and safety of pravastatin in patients with hyperlipidemia. METHODS: We studied 31 patients(7 males and 24 females ; range of age, 36-67 years) for 12 weeks whose plasma levels of total cholesterol were higher than 250mg% after one month period of diet therapy. Pravastatin was administered 10mg/day and measured lipid profiles at 4 week interval. RESULTS: Pravastatin reduced the plasma total cholesterol from 286.2mg% to 212.3mg% (25.9%), the LDL-cholesterol from 204.2mg% to 143.6mg% (29.7%), the triglyceride from 226.0mg% to 161.4mg% (28.6%) after 12 weeks treatment. The HDL-cholesterol increased from 25.8mg% to 46.4mg% (20.5%) after pravastatin therapy. These changes were disclosed all statistically significant compared to baseline levels(p<0.01). The clinical and laboratory examinations before and after pravastatin treatment showed no particular abnormal findings. CONCLUSIONS: These results suggested that short-term pravastatin therapy in patients with hyperlipidemia seems to be very effective and safe.
Atherosclerosis ; Cholesterol ; Coronary Artery Disease ; Coronary Vessels ; Diet Therapy ; Female ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Hyperlipidemias* ; Incidence ; Male ; Plasma ; Pravastatin* ; Risk Factors ; Triglycerides

Phenolate type siderophore was produced in Pseudomonas sp. PY002 (P. sp. PY002) which cultured in M9 minimal medium supplemented with 0 to 500 uM of dipyridyl. Pyochelin, a kind of siderophore, was detected as a single broad absorption band (280 nm) at pH 12.0, which is a characteristic of phenolate type siderophore. The 280 nm absorption spectrum of pyochelin was changed to 310 nm at pH 1.5. The pyochelin produced was a structurally unique phenolate siderophore, designated 2-[2-(o-hydroxyphenyl)-2-thiazolin-4-yl]-3-methyl-4-thiazolidine car- boxylic acid on the analysis of infrared radiation and 'H and ""C nuclear magnetic resonance spectroscopy. Additionally, purified pyochelin increased the cell growth rate, like as growth fac- tor. All these results suggest that phenolate type siderophore play an important role in cell growth of P. sp. PY002.
Absorption ; Hydrogen-Ion Concentration ; Magnetic Resonance Spectroscopy ; Phenol* ; Pseudomonas* ; Spectrum Analysis

OBJECTIVE: Flow cytometric deoxyribonucleic acid (DNA) content analysis has been shown to be of prognostic importance in some cancers. In this study, DNA patterns obtained by flow cytometry in patients with cervical cancer have been shown to be related to a prognostic importance in cervical carcinoma. METHODS AND MATERIALS: We retrospectively reviewed 59 cervical cancer patients who admitted to the department of obstetrics and gynecology, Samsung Medical Center firom January 1995 to May 1997. RESULTS: A total of 59 archival paraffin-embedded blocks were proc 42.4 percent were found to be DNA content aneuploid (DNA-A) and 57.6 percent DNA content diploid (DNA-D). The S-phase fraction was significantly increased with stage. The incidences of aneuploid and relative DNA index were not significantly increased with the stage(P=0.280) and age of patients(P=0.088). The results had no significant differences between the squamous cell carcinoma and adenocarcinoma, and no relationship between the groups with keratinizing cell type and nonkeratinizing type(P=0.409). The DNA ploidy patterns were not significantly correlated with metastasis to lymph node(P=0.179), tumor size(P=0.109), invasion depth(P=0.361) and recurrent group(P=0.285). High S-phase fraction had a tendency to correlate with the invasion depth(P=0,011), size(P=0.027), lymph node metastasis(P=0.039) and recurence(P=0.099) of cervical cancer. CONCLUSION: Flow cytometric DNA content analysis is being used more frequently in the management of different malignant tumors. Our study shows that DNA content analysis may not serve as an important biological indicator in determining the prognosis in cervical carcinoma, but High S-phase fraction has been connected with more aggressive tumors.
Adenocarcinoma ; Aneuploidy ; Carcinoma, Squamous Cell ; Cervix Uteri* ; Diploidy ; DNA* ; Female ; Flow Cytometry ; Gynecology ; Humans ; Incidence ; Lymph Nodes ; Neoplasm Metastasis ; Obstetrics ; Ploidies ; Prognosis ; Retrospective Studies ; Uterine Cervical Neoplasms

Gatric duplication is a rare congenital anomaly. Thus for about 90 cases of gastric duplication have been recorded in the literature. It is less frequent than small intestinal or eosphageal duplication, and accounts for only 3.8% of all gastrointestinal tract duplication. Most gastric duplications are seen during the first year of life. Palpable abdominal mass and gastric outlet obstruction in infancy are most common presentation. We experienced a case of non-communicating gastric duplication. A 12-year-old girl visited St. Mary's Hospital because of indigestion, intermittent vomiting, and left upper quandrant pain for about 40 days. She have had intemittent abdominal pain with concomitant increased level of amylase since 5 years old. Physical examination showed a hen's egg sized palpable mass on left upper quadrant of the abdomen. Upper GI series and barium enema revealed only indentation of duodenal C-loop, and sonogram and abdominal CT demonstrated isolated cystic mass along the greater curvature of gastric antrum. She had taken an operation under the impression of pancreatic pseudocyst. Operation revealed a cystic mass, located along the greater curvature. There was no pathologic change in the pancreas. Microscopic findings of the cyst wall revealed normal gastric mucosal lining and common muscle layer, shared with gastric antral muscle layer.
Cysts