Two hundreds and forty six preoperative endoseopic gastric biopsies from 236 conaecutive cases were subjected to the retrospective analyais of diagnostic accuracy among 597 tumor- bearing gastrectomy specimens confirmed by extended histotopographic investigations during a period of 1980 to 1981 at Seoul National University Hospital. The overall diagnostic accuracy of endoscopic gastric biopsy was 93.1% with 0.8% false positivity and 3.5% of false negative caaes; of those, the concordance rate of preoperative biopsy diagnosis based on the histotopographic investigation of the gastrectomy remained in 85.5%, whereas 75% of diagnostic discrepancy wae reaulted from inappropriate biopsy sampling or failure of neoplastic tissue obtainability; and the rest of 25% was mostly false negative cases. (continue...)
Biopsy* ; Diagnosis ; Gastrectomy ; Retrospective Studies ; Seoul

No abstract available.
Animals ; Carcinoma, Hepatocellular* ; Epidermal Growth Factor* ; Rats*

PURPOSE: To analyze the significance of interleukin-6 (IL-6) concentration and Ureaplasma urealyticum (UU) from tracheal aspirates (TA) taken immediately after birth in the development of chronic lung disease of prematurity (CLD), and to analyze the risk factors for CLD according to the preceding illnesses. METHODS: A retrospective cohort study was done in 75 inborn preterm infants admitted to a university hospital NICU and intubated at birth for the respiratory care. TA was taken to measure IL-6 by ELISA and to perform UU PCR. The patients were grouped into four, according to the history of respiratory distress syndrome (RDS) and chorioamnionitis (CA). RESULTS: PCR positive rate of UU was 25.3%. Positive PCR was significantly frequent in the patients with CLD or CA. IL-6 in TA was significantly higher with CLD, CA, or positive PCR. Risk factors for CLD were increased IL-6, positive UU PCR, and PDA in all patients. The risk factors for CLD were PDA in RDS(+)CA(-) group [OR 2.11; 95% CI 1.15-3.89]; PDA [OR 12.0; 95% CI 2.50-57.67] and IL-6 (>284.7 pg/mL) [OR 3.75; 95% CI 1.01-13.90] in RDS(+)CA(+) group; and IL-6 (>284.7 pg/mL) [OR 8.25; 95% CI 1.54-44.14] in RDS(-)CA(+) group. CONCLUSION: PDA was a risk factor for CLD following RDS and increased IL-6 for CLD following CA. Inflammatory response of fetal lung, measured by IL-6 and UU PCR in TA at birth in preterm infants, was associated with CA and might be a risk factor for the development of CLD.
Bronchopulmonary Dysplasia ; Chorioamnionitis ; Cohort Studies ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; Interleukin-6* ; Lung Diseases* ; Lung* ; Parturition* ; Polymerase Chain Reaction* ; Pregnancy ; Retrospective Studies ; Risk Factors* ; Ureaplasma urealyticum* ; Ureaplasma*

A review has been made of mortality trends in Korea from 1958 to 1907 analyzing the data by sex, age and cause of death. The crude death rates and age specific death rates were estimate6 by the model of N. Keyfitz life table which had teen developed by the data of the 1960's national census. The cause specific death rates shown in this article are based on the following: all deaths occurring in the death-registration are expressed as a numberator, while the denominator was estimated from the regular national census data by interpolation method. It is estimated that only an average of about 40% of deaths which occurred during a year were registered during 1958 to 1967. The validity and the reliability of the diagnosis of causes of death seem to be extremely poor in this country. Therefore the cause specific death rates in this article are aimed to reveal trends of causes of registered death and not for the actual level of death rates. For 10 years very interesting mortality trends were observed : 1. The trend in the crude death rates was downward slowly. 2. The estimated death rate for the infant in 1960 was still high up to 100 per 1,000. 3. The rates for mortality attributed to such infectious diseases as pneumonia, bronchitis, gastroenteritis and measles decreased an average 40-60%. 4. The death rates for over-all tuberculosis decreased only 9.8%. 50% of the decrease was contributed by those in the less-than-15 year age group. 5. The death rates for chronic diseases, such as vascular diseases affecting the central nervous system, malignant neoplasm, major heart diseases and all accidents rose about 40-60%. 6. The rank order of the 10 leading causes of death showed large changes over the years, except for pneumonia and tuberculosis which occupyed 1st and End places respectively. Vascular diseases affecting the central nervous system moved from 5th to 3rd place and malignant neoplasm from 6th to 4th palace. The major heart diseases moved from 10th to 6th place and all accidents from 10th to 7th place. On the other hand, gastroenteritis moved from 3rd to 5th place and influenza from 4th to 8th place.
Adolescent ; Bronchitis ; Cause of Death ; Censuses ; Central Nervous System ; Chronic Disease ; Communicable Diseases ; Diagnosis ; Gastroenteritis ; Hand ; Heart Diseases ; Humans ; Infant ; Influenza, Human ; Korea* ; Life Tables ; Measles ; Mortality* ; Pneumonia ; Tuberculosis ; Vascular Diseases

For sequential phenotypic changes including enzyme altered hepatocytic foci, hyperplastic nodules, hepatocellular adenomas and carcinomas were produced in Sprague-Dawley rats by Solt-Farber method (administration of diethylnitrosamine and acetylaminofluorene (AAF), and partial hepatectomy). The immunohistochemical expressions of glutathione S transferase P (GST-P) and bromodeoxyuridine (BrdU) were assessed for selective proliferative activity in the enzyme altered foci and the subsequently developed lesions by double immunohistochemical staining technique. Immunoreactive areas against GSTP gradually increase from early period of carciogenesis. BrdU labeling in such areas remained high during the first week. but decreased thereafter. BrdU labeling index remained low in the GSTP negative area throughout the experimental period. This suggests that cells in the enzyme altered foci keep away from the suppressor effect of AAF in contrast to the normal cells in which their growth are inhibited by AAF. BrdU labeling index remained very low in both hyperplastic nodule and adenoma which were prevalent during the mid-experimental period, but increase markedly in carcinoma. The long period of low BrdU labeling index seems to correspond to the "slowly growing step of persistent nodule" during hepatocarcinogenesis. The differentiation index, a ratio of S phase fraction between GSTP positive and negative areas, was low in adenoma-developing period and high in carcinoma-developing period. C-Ha-ras p21 was not expressed in foci of enzyme altered hepatocyte and hyperplasia, but highly positive in carcinoma. This indicates that the c-Ha-ras may involve the late step of hepatocarcinogenesis.
Rats ; Animals ; Adenoma ; Carcinoma, Hepatocellular

No abstract available.
Animals ; Mucous Membrane* ; Nucleolus Organizer Region* ; Rats*

Calcification and ossification of colon cancer is frequently encountered, especially in the mucinous carcinoma. However, cartilage formation or enchondral ossification has rarely been described in human colon cancer. This report describes a case of a 59-year-old man with retroperitoneal metastasis of mucinous adenocarcinoma of colon, which showed a widespread heterotopic ossification through membranous or enchondral ossification. The ossification appeared in apposition to tumor cell nests and in the organized mucin pool. In our knowledge, this is the first case showing enchondral ossification in gastrointestinal carcinoma in Korea.
Adenocarcinoma* ; Adenocarcinoma, Mucinous ; Cartilage ; Colon* ; Colonic Neoplasms ; Humans ; Korea ; Middle Aged ; Mucins ; Neoplasm Metastasis ; Ossification, Heterotopic

This study was undertaken to characterize the clinicopathologic features of smooth muscle tumors of the stomach with additional regard to recent controversy over the gastrointestinal smooth mscle tumors. A total of 46 consecutive cases(47 tumors) of surgically resected or excised gastric smooth muscle tumors, were assessed for review. The criteria for malignancy applied in this study were one of the followings; (1) 5 or more mitoses/10 HPF or (2) 1-4 mitoses/10 HPF with tumor cell necrosis and 5 cm or greater in tumor size. The tumors were classified as ordinary leiomyoma in 24 cases(25 tumors), epithelioid leiomyoma in 3, cellular leiomyoma in 6, ordinary leiomyosarcoma in 10, myxoid leiomyosarcoma in 2, and epithelioid leiomyosarcoma in 1. Of the 46 cases, 13 cases(28%) were categorized as malignant smooth muscle tumor. But immunohistochemical study for S-100 protein, desmin and vimentin(5 cases), and ultrastructural study(2 cases) support that myogenic or neurogenic differentiation is evident simultaneously within the same tumor, regardless of malignancy, and that even the differentiated tumor cells seem to express such direction toward immature smooth muscle cell or nerve cell.

The authors developed a computer program for use in report printing as well as data storage and retrieval system at the surgical pathology and its efficacy was evaluated at the Department of Pathology, Seoul National University Hospital. This program used IBM PC XT and was written in DBASE III plus language. The main features of the program included an automatic coding and decoding of the diagnosis, automatic searching of the previous biopsy during gross dictation, powerful word processing function and flexibility of the program. The data storage was carried out during the typewriting of the report, so that the typist's workload became markedly reduced. Two kinds of data files wer stored in the hard disk ; the temporary file contained full informations and the permanent file contained the core data only. Searching of a specific case was performed by pathology accession number, chart number, patient's name or by SNOMED code within a second. All the cases were arranged by copied to the diskette during the daily service automatically, with which data were easily restored in case of hard disk failure. The advantages of this program using a persosnal computer were discussed with comparison to those of larger computer system. Based on the experience of 8 months usage in Seoul National University, we assume that this program gives a sufficient solution to the surgical pathology service of many institutes where a large computer system with well designed software is not available yet.
Biopsy

Gastric lesion in familial polyposis coli is commonly presented with fundic gland hyperplastic polyps, but duodenal and gastric adenomas together with their carcinomatous transformation have been rarely described in familial polyposis coli mostly by case reports. We present three cases of gastric adenomas in familial polyposis coli with one in synchronous development of gastric adenocarcinoma in Korea. All three cases had the family history related to familial polyosis coli and received proctocolectomy because of synchronous development of colonic adenocarcinoma. One patient developed gastric polyposis and adenocarcinoma 8 years after colectomy, and the remaining two presented with multiple polyps either in the stomach or duodenum synchronously at the time of the diagnosis of familial polyposis coli with colonic adenocarcinoma. None disclosed any evidence of Gardner's syndrome. We conclude that association of gastric adenomas in familial oplyposis coli is not uncommon and gastric adenoma-carcinoma sequence is an another important participating mechanism to understand the histogenesis of gastric carcinoma in Korea.
Adenocarcinoma ; Adenoma