The majority of cystic lesions of the pancreas are psudocysts and a small fraction neoplastic. Failure to recognize the true nature of neoplastic cyst will lead to an incorrct treatment strategy. Ultrasonography, computerized tomography and angiography were used to distingish these lesions, but diagnostic value of ERCP is in controversy. To evaluate the diagnostic value of ERCP in cystic lesions of the pancreas, we analysed 33 cases of pancreatic cystic lesions (pseudocyst 18 cases, retention cyst 3 cases and cystic, neoplasm l2 cases) between Apr. 1985 and June 1993. In 18 cases of pseudocysts, ERP findings were communication with cyst in 8 cases (44.4%), chronic pancreatitis in 8 cases (44.4%), obstruction in 4 cases (22.2%) and displscement of pancreatic duct in 2 cases (11.1%), and ERC findings, which were perfomed in 8 cases, showed cholangitis in 3 cases (37.5%), CBD stone in 2 cases (25%), mass effect in 1 case (12.5%) and normal in 2 cases (25%). There was no communication with the cyst and pancreatic duct, except two mucinous ductal ectasia, in 12 cases of cystic neoplasms, and the other findings were displacement of pancreatic duct in 4 cases (33.3%), obstruction in 2 cases (16.7%) and normal in 4 cases (33.3%). ERC findings of cystic neoplasm were almost normal (85.7%) except 1 case of cholangitis. In conclusion, ERCP findings of pseudocysts were communication with pancreatic duct, chronic pancreatitis and biliary tract abnormality. In contrast, ERCP findings of cystic neoplasms were displacement or obstruction of pancreatic duct without communication and chronic pancreatitis, and biliary tract abnormality were rare.
Angiography ; Biliary Tract ; Cholangiopancreatography, Endoscopic Retrograde* ; Cholangitis ; Dilatation, Pathologic ; Mucins ; Pancreas ; Pancreatic Cyst* ; Pancreatic Ducts ; Pancreatitis, Chronic ; Ultrasonography

Gastritis cystica polyposa(GCP) is a polypoid cystic lesion showing all the histological features of the hyperplastic polyps and the cysts penetrating through the mucularis mucosae. Most reported GCP lesions were developed at gastraenterostomy stomas. It is rare that GCP develops without history of previous gastroenterostomy. In 1990, however, Kim et al reported a GCP presenting as a submucosal tume-like lesion in a 69-year-old man. Recently, we had experienced two consecutive cases of GCP diagnosed by endoscopic polypectomy. The first case was 49-year-old housewife without history of previous gastric surgery. Esophagogastroduodenoscopy(EGD) showed a 2.0x1.5x1.5cm sized lobulated polypoid lesion with a broad stalk on the anterior wall of the distal antrum. The second case was 45-year-old woman without history of previous gastric surgery. EGD revealed a 1.0 x 1.0 x l.0 cm sized polypoid lesion with a pedicle on the greater curvature aspect of the upper body and two duodenal ulcers with pseudodiverticulum formation. These lesions were endoscopically polypectomized and diagnosed as GCP by the histologic examination.
Aged ; Duodenal Ulcer ; Female ; Gastritis* ; Gastroenterostomy ; Humans ; Middle Aged ; Mucous Membrane ; Polyps

This study was carried out to investigate the mechanisms of acinar cell deletion, leading to the pancreatic atrophy of rat pancreas after experimental duct ligation. Fifty-seven male Sprague-Dawley rats, maintained on a stock diet, weighing 200 gm, in average, were divided into 2 experimental groups. Group 1. Control group. Six rats. Abdominal cavity was opened and closed without further treatment. Group 2. Fifty-one rats. Animals were treated with partial ligation of the pancratic ducts according to the procedure developed by Hultquist followed by sequential sacrifices at: 1 hour (3 rats), 3 hours (3 rats), 6 hours (6 rast), 12 hours (3 rats) and 24 hours (8 rats); 2 days (8 rats), 3 days (3 rats), 4 days (3 rats) and 5 days (5 rats); 1 week (3 rats), 2 weeks (3 rats) and 8 weeks (3 rats); after partial ligation was extirpated and examined by both light and electron microscopy. The results obtained were as follows: Light microscopically, noted were an interstitial edema and focal necrosis of the pancreatic tissue along with fine vacuolization and depletion of the zymogen granules in the acinar cell cytoplasms and condensation of the acinar cell nucleus. These changes were observed by 2 days after ligation. At about the same time, one can observe the dense body, identified to be apoptotic body, in the acinar cell which were found to be decreased in quantity. By 5 days after ligation, no recognizable acinar cells left in the collagenous stroma except intercalated ducts. Conspicuous stroma except intercalated ducts. Conspicuous stromal hyalinization, thereafter. Electron microscopically (TEM and SEM), nuclear condensation and margination toward the nuclear membrane was noted by 6 hours after duct ligation. By 24 hors sporadic membrane-bounded apoptotic bodies appeared in the acinar cells, the number of which reaching to the peak by 3 days after ligation. These apoptotic bodies were found to be phagocytosed by either intraepithelial mononuclear phagocytes or adjoining acinar cells. It can be concluded, therefore: That orderly remodeling of pancreatic exocrine tissue during atrophy is effected by rapid deletion of acinar cells by apoptosis.
Male ; Humans ; Rats ; Animals

The purpose of this study is to analyze occupational history of coal miners with pnemoconiosis. In this study, occupational chracteristics of 49 coal miners with pneumoconiosis were compared with those of 45 coal miners without pneumoconiosis but in similar age category (43-52 years of age) based on interview survey. Various indices on occupational characteristics were developed for the following areas: duration of employment, perception of working condition, working density, dust concentration, temperature, humidity, and experience of respirator wearings. Perception of working condition were measured in 5 points scales but experiences of respirator wearing was measured in 3 points scale. Each index was multiplied by duration of employment. From the analysis, only the experience of respirator wearing showed statistically significant difference between the two groups. Therefore, respirator wearing seemed to be effective in reducing occurrence of pneumoconiosis.
Coal* ; Dust ; Employment ; Humidity ; Pneumoconiosis* ; Ventilators, Mechanical ; Weights and Measures

No abstract available.
Animals ; Fibroblasts* ; Fluorouracil* ; Rats*

In order to evaluate the confounding factors of neurobehavioral tests and the neurobehavioral effects in the workers exposed to organic solvents, NCTB was carried out on 100 workers. 46 workers had never been exposed to neurotoxic substances, and the others were being exposed to the solvents, mainly toluene. Simple reaction time, digit symbol, Santa Ana dexterity test and persuit aiming were different with age in non exposure group. Simple reaction time was carried out well in males, and digit symbol and persuit aiming were in females. There was no difference at educational level when the subject was educated over 12 years. Santa Ana dexterity and Benton visual test differed according to exposure level to toluene, however simple reaction time didn't. The acute neurotoxic effect was not excluded in this study. But, NCTB could be used to evaluate and prevent neurobehavioral changes in workers exposed to neurotoxic solvents in Korea.
Female ; Humans ; Korea ; Male ; Reaction Time ; Solvents* ; Toluene

No abstract available.
Braces*

No abstract available.
Abortion, Habitual* ; Female ; Immunization* ; Lymphocytes* ; Pregnancy

After pantethine in doses of 540 mg per day was administered for 8 weeks in 20 patients with hyperlipidemia, the serum levels of total cholesterol, triglyceride and HDL-cholesterol were compared with the pretreatment level. The serum level of total cholesterol decreased to 240+/-52 mg%[mean+/-standard deviation] after 4 weeks and 223+/-41 mg% after 8 weeks from the pretreatment level of 293+/-38 mg%(p<0.01). The serum triglyceride level also decreased to 254+/-109 mg% after 4 weeks and 239+/-114 mg% after 8 weeks from the pretreatment level of 375+/-126 mg%(p<0.01). But, there was no significant change in the serum levels of HDL-cholesterol before and after treatment (56+/-27 mg% beforAfter pantethine in doses of 540 mg per day was administered for 8 weeks in 20 patients with hyperlipidemia, the serum levels of total cholesterol, triglyceride and HDL-cholesterol were compared with the pretreatment level. The serum level of total cholesterol decreased to 240+/-52 mg%[mean+/-standard deviation] after 4 weeks and 223+/-41 mg% after 8 weeks from the pretreatment level of 293+/-38 mg%(p<0.01). The serum triglyceride level also decreased to 254+/-109 mg% after 4 weeks and 239+/-114 mg% after 8 weeks from the pretreatment level of 375+/-126 mg%(p<0.01). But, there was no significant change in the serum levels of HDL-cholesterol before and after treatment (56+/-27 mg% before treatment, 56+/-18 mg% after 4 weeks and 59+/-22 mg% after 8 weeks). Pantethine was well tolerated in most patients.
Cholesterol ; Humans ; Hyperlipidemias* ; Triglycerides

To evaluate the clinical significance of anomalous pancreaticobiliary ductal union(PBDU), we analysed 11 cases(0.19%) of anomalous PBDU among 5675 cases performed ERCP from Jan. 1973 to Aug. 1992. According to the classification of Kimura et al., 4 cases were type 1(P-C union) and 7 cases type 2(C-P union). The length of common channel ranged from 1.5 cm to 3.1 cm(mean 1.9 cm). The common associated disease were choledochal cyst(7 cases), carcinoma of the gallbladder(5 cases) and biliary stone(3 cases). Four cases of carcinoma of the gallbladder were type 1. The incidence of anomalous PBDU was significantly higher in cases with carcinoma of the gallbladder(5 cases among 49 cases) than in case without carcinoma of the gallbladder(6 cases among 5626 cases). And the incidence of gallbladder carcinoma(45%) among the 11 cases of anomalous PBDU was significantly higher than that(0.78%) among those who did not have anomalous PBDU. In conclusion, the common associated diseases with the anomalous PBDU were choledochal cyst, carcinoma of the gallbladder and stone, and the anomalous PBDU may be risk factor in the development of carcinoma of the gllbladder.
Cholangiopancreatography, Endoscopic Retrograde* ; Choledochal Cyst ; Classification ; Gallbladder ; Incidence ; Risk Factors