Choriocarcinoma of the gastrointestinal tract is rare. Among them, that of the stomach is the most common. Six cases of choriocarcinoma of the colon were found in the review of the literature. All of these previously reported cases had multiple metastatic foci in the liver, lung, lymph nodes and the prognosis seemed to be very poor. Therefore we think that choriocarcinoma of the colon should be distinguished from conventional adenocarcinoma. A 66-year old female patient, described in this case, was operated on under the impression she was suffering from acute appendicitis. The resected ascending colon revealed extensive hemorrhagic necrosis and perforation with fibrous adhesion in the cecum. On the cut section, the mural tumorous thickening was not definite. Histologically, the tumor showed a focus of typical adenocarcinoma arising from glandular epithelial cells, which were transformed into highly anaplastic tumor cells. There were frequent vascular invasions of tumor cells, similar to syncytiotrophoblasts. In the immunohistochemical stains, both glandular and highly anaplastic tumor cells reacted with cytokeratin. The glandular cells were also reactive for carcinoembryonic antigen (CEA) and anaplastic tumor cells for human chorionic gonadotrophin (hCG). This is the first report of choriocarcinoma of the colon in Korea. We describe this case with a review of the literature.
Adenocarcinoma ; Aged ; Appendicitis ; Carcinoembryonic Antigen ; Cecum ; Choriocarcinoma* ; Chorion ; Colon* ; Colon, Ascending ; Coloring Agents ; Epithelial Cells ; Female ; Gastrointestinal Tract ; Humans ; Keratins ; Korea ; Liver ; Lung ; Lymph Nodes ; Necrosis ; Pregnancy ; Prognosis ; Stomach ; Trophoblasts

No abstract available.
Anxiety* ; Depression* ; Epilepsy, Temporal Lobe* ; Temporal Lobe*

The purpose of this study was to investigate children's nutrient intakes by school lunch. Evaluation of nutrient intakes by school lunch for three days was conducted with 86 children in urban and 64 children in rural of Jeonbuk area. The results of this study were as follows. 1) With respect to amounts of provided nutrients in school lunch, CPF (carbohydrate : protein : fat) energy ratio was 48.6 : 19.7 : 31.6 in urban and was 46.7 : 20.5 : 32.7 in rural. Compared to 1/3 RDA (RDA) of children for 10-12 years, folic acid and zinc were provided below 50 % of RDA. Protein, fat, phosphorus, vitamin B1, vitamin B2, niacin, vitamin C and vitamin E were provided above 125 % of RDA. There were no differences in amounts of provided nutrients-except calcium, vitamin A, vitamin B6, folic acid and zinc-between urban and rural. 2) With respect to amounts of nutrient intakes, CPF energy ratio was 51.1 : 17.4 : 31.5 in urban and 47.5 : 19.7 : 32.7 in rural. Compared to RDA, folic and zinc were below 50 % of RDA. Iron and vitamin B6 were below 75 % of RDA. Protein, fat, phosphorus and vitamin E were above 125 % of RDA. There were significant differences in nutrient intakes between urban and rural. The children in rural showed higher levels of nutrient intakes-energy, carbohydrate, protein, fat, calcium, phosphorus, iron, zinc, vitamins and folic acid-compared to those of children in urban. These results suggest that programs are needed for providing adequate nutrient intakes for children in school lunch and for improving nutrient intakes of children in urban.
Ascorbic Acid ; Calcium ; Child ; Folic Acid ; Humans ; Iron ; Jeollabuk-do* ; Lunch* ; Niacin ; Phosphorus ; Riboflavin ; Thiamine ; Vitamin A ; Vitamin B 6 ; Vitamin E ; Vitamins ; Zinc

Adenomatoid tumors are well-recognized neoplasms generally to be of mesothelial derivation. We experienced a case of an adenomatoid tumor of the tail of the epididymis in a 56-year-old male. Grossly the tumor was firm and whitish gray, and microscopically it consisted of glandular, cord-like, microcystic structures which were lined by flattened endothelial like to plump cuboidal cells. Immunohistochemical stains whowed positivity for keratin and negativity for facter VIII related antigen and carcinoembryonic antigen. Ultrastructually, there was many long microvilli projecting into the glandular lumina and intracytoplasmic luminal spaces, desmosomes, and prominent cytoplasmic tonofilaments. Those findings strongly support the mesothelial origin of the adenomatoid tumor especially in the glandular type. It also lead us to suggest that the term adenomatoid tumor should be remain in use for light microscopic diagnosis, and that the term adenomatoid mesothelioma should be applied when the mesothelial nature of an adenomatoid tumor is proven by electron microscopy and immunohistochemical stains.

No abstract available.
Adult* ; Humans ; Life Style*

The purpose of this study was to investigate the characteristics or the potassium channels existing in the rat urinary bladders. Smooth muscle strips of rat detrusor urinae were examined by isometric myography. Relaxation responses of detrusor muscle strips to the three potassium channel openers pinacidil, a cyanoguanidine derivative, BRL 38227, a benzopyran derivative and RP 52891, a tertrahydrothiopyran derivative were examined. The potassium channel openers reduced the basal tone, and the rank order of potency was RP 52891>pincidil>BRL 38227. Procaine, an inhibitor of the voltage-sensitive potassium channel tended to increase the basal tone, but it did not affect the relaxant effects of the calcium-activated potassium channel opener did not antagonize the relaxant effects, but it reduced the Emax of RP 52891 and BRL 38227. Glibenclamide, an inhibitor of the ATP-sensitive potassium channel, antagonized the relaxant effects of pinacidil, RP 52891 and BRL 38227 reducing the Emax of RP 52891 and BRl 38227. Galanin which inhibits secretion of insulin through opening the ATP-sensitive potassium channels in pancreatic β-cells rather increased the basal tone of the isolated detrusor strips. These results suggest that the urinary bladder of the rat has mainly the ATP-sensitive, glibenclamide sensitive potassium channel, which is a different type from that in the pancreatic β-islet cells.
Animals ; Cromakalim ; Galanin ; Glyburide ; Insulin ; KATP Channels ; Muscle, Smooth ; Myography ; Pinacidil ; Potassium Channels* ; Potassium Channels, Calcium-Activated ; Potassium* ; Procaine ; Rats* ; Relaxation ; Urinary Bladder

This study aimed to investigate the existence of GABA receptor and the mechanisms of action of GABA and diazepam of the trachealis muscle isolated from dog. Horizontal muscle strips of 2mm×15mm were prepared from canine trachea, and isometric myography in isolated muscle chamber bubbled with 95/5%-O₂/CO₂ at 36℃, at the pH of 7.4 was performed. Muscle strips contracted responding to the electrical field stimulation (ESP) by 2~20 Hz, 20 msec, monophasic square wave of 60 VDC. GABA and diazepam suppressed the EFS-induced contractions to the similar extent, significantly. (p<0.05). Bicuculline, a GABA(A) receptor antagonist blocked both GABA- and diazepam-inhibitions; but DAVA, a GABA(B) receptor antagoinst did not affect either of them. These results suggest than in the canine trachealis muscle, there may be only GABA(A) receptor, and GABA and diazepam inhibit the contractility via GABA(A) receptor.
Animals ; Bicuculline ; Diazepam ; Dogs ; gamma-Aminobutyric Acid* ; Hydrogen-Ion Concentration ; Myography ; Receptors, GABA ; Receptors, GABA-A ; Trachea

Auditory brainstem potentials were.recorded from scalp electrodes in neonates ranging in gestational age from 33 to 43 weeks, The latencies of the various potential component decreased with maturation, Wave V, evoked by 90-100dB sensation level clicks, changed in latency from 7.18 msec at 33 weeks of gestation to 6.93 msce at 43 weeks of gestation. Central condcuction times( I-V interpeak latency) in the auditory pathway also decreased with maturation from 5.65 msec at 3,3 weeks to 5,35 msec at 43 weeks, Several kinds of patholgic condition including hyperbilirubinemia, bacterial meningitis and respiratory difficulty syndrome were also evaluated with auditory brainstem potentials, the application of all of these techniques could permit an objective definition of normal and will be helpful in abnormal infants.
Auditory Pathways ; Brain Stem* ; Electrodes ; Evoked Potentials, Auditory* ; Gestational Age ; Humans ; Hyperbilirubinemia ; Infant ; Infant, Newborn* ; Meningitis, Bacterial ; Pregnancy ; Scalp ; Sensation

Intracerebral metastases are among the most feared complication of systemic malignant disease and most occur late in the course of the systemic cancer so often are viewed as a terminal maifestation for which diagnosis and treatment are neigher required nor desirable. However, this situation is changing. Improved survival rates with many kinds of cancer have led increasingly to instances where the neurologic complications themselves limit the quality of life, forcing physicians to assume a more active attitude toward the diagnosis and treatment of the neurologic disorder. The authors analysed 125 cases of intracerebral metastatic tumors which are diagnosed with the brain CT scan at Yonsei University, Severance Hospital from January, 1979 to December, 1984 and following results were obtained. 1. Intracerebral metastatic tumors are found in 125 cases(31.2%) of all intracranial neoplasm. 2. The most common primary tumor is lung ca. (50.4%) followed by chorioca. (8%), breast ca. (8%) and GI tract ca. (6.4%) in the order while 16 casese (12.8%) were of unknown primary tumor. 3. Chorioca. (14.9%), melanoma(5.6%), lung ca.(4.2%), kidney ca.(3.3%) and breast ca.(2.3%) exhibit relatively high rate of intracerebral metastasis in the order whereas stomach ca.(0.2%), hepatoma (0.3%) and cervix ca (0.1%), which constitute most common primary maliqnancies in Korea, revealed very low rate of intracerebral metastasis. 4. The youngest patient was 11 years old and the oldest 80. Most intracerebral metastatic tumors, 97%, occur above 30 years of age and peak in the 6th decade (32%). In age below 40, chorioca. Is the most common pimary tumor and the age above 40, lung ca. 5. There is no sexual difference between male and female. In male most conmon primary site is lung (64.6%) followed by GI tract(7.7%)and in female, lung (35%), chorioca. (16.7%) in the order. 6. The most common presenting symptom and sign is headache (58.4%) followed by motor deficit (48.0%), mental deterioration (43.2%) and nausea or vomiting (32.8%). 7. In most of intracerebral metastases the onset is gradual with duration of less than 3 months in 84% whereas in a few patients, 8 cases (6.4%), the onset is apoplectic and the primary sites that revealed apoplectic onset are lun. (3 cases), chorioca. (3 cases), liver (3 cases), unknown (1 cases). 8. Intracerebral metastases are detected simultaneously (50.5%), precociously (3.7%) or after (45.9%) diagnosis of the primary tumor. 9. Average interval between the diagnosis of primary tumor and development of intracerebral metastasis is 9.1 months in total and short in lung, stomach, kidney and liver cancer whereas and long in breast, rectum cancer and sarcoma. 10. In 96 cases who can be reevaluated with brain CT, the findings are as follows; 1) Metastatic lesions are multiple in 67.7% and single in 32.3%. 2) Most intracerebral metastases are located supratentorially (77.%), in 4.2%; infratentorially and in 18.8%; both. 3) Density of lesions are variable from hypodense to hyperdense and intracerebral metastases from chorioca., breast, kidney and nasopharynx ca. Are likely to iso to hyper than hypodense. Calcifications are rare and observed only in 2 cases (2%). 4) Most cases (98.5%) reveal perifocal edema of variable degree while a few patients (11.5%) reveal no edema. 5) Most metastatic lesions demonstrate variable contrast enhancement with nodular type (52.1%), rign type (25.0%), combined (15.6%) and a few patients (7.3%) fail to enhance. 6) Hemorrhages are found in 11 cases (11.5%) and chorioca. (4 cases), hepatoma 3 cases) and lung ca, (3 cases) are the most frequent offenders. 11. Radiation, surgery and chemotherapy seems to improve the prognosis.
Brain ; Brain Neoplasms ; Breast ; Carcinoma, Hepatocellular ; Cervix Uteri ; Child ; Criminals ; Diagnosis ; Drug Therapy ; Edema ; Female ; Gastrointestinal Tract ; Headache ; Hemorrhage ; Humans ; Kidney ; Korea ; Liver ; Liver Neoplasms ; Lung ; Male ; Nasopharynx ; Nausea ; Neoplasm Metastasis ; Neoplasms, Unknown Primary ; Nervous System Diseases ; Prognosis ; Quality of Life ; Rectal Neoplasms ; Sarcoma ; Stomach ; Survival Rate ; Tomography, X-Ray Computed ; Vomiting

No abstract available.
Child* ; Humans ; Melanoma*