Three external quality assesment trials which composed of 16 control materials (12 chemical materials and four microscopic photographs of urinary sediment) for interlaboratory quality control assesment in urinalysis were performed with 451, 452, and 476 participants, in each, in the year of 2005. The response rate were 95.6% (451/472), 91.9% (452/492) and 95.6% (476/498), in the first , the second and the third trials, in each. The test items include pH, glucose, protein, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte estrase, specific gravity and four microscopic photographs of urinary sediment. The survey results are summarized as follows: 1. The chemical quality control test in urinalysis revealed generally good concordance. 2. The percentage of using urinalysis analyzer was slightly increased as 91.2% and the distribution of using reagent strip was similar to the previous year. 3. The percentage of response rate of microscopic photographs of urinary sediment was 76.5%(387/498) and the percentage of good performance of these tests ware 63.6% to 86.5%.
Bilirubin ; Equidae ; Glucose ; Hydrogen-Ion Concentration ; Korea* ; Leukocytes ; Quality Control ; Reagent Strips ; Specific Gravity ; Urinalysis* ; Urobilinogen

Three external quality assesment trials which composed of 16 control materials(12 chemical materials and four microscopic photographs of urinary sediment) for interlaboratory quality control assesment in urinalysis were performed with 446, participants, in each, in the year of 2004. The response rate were 93.4% (422/452), 91.7% (411/448) and 91.7% (410/447), in the first , the second and the third trials, in each. The test items include pH, glucose, protein, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte estrase, specific gravity and four microscopic photographs of urinary sediment. The survey results are summarized as follows: 1.The chemical quality control test in urinalysis revealed generally good concordance. 2.The percentage of using urinalysis analyzer was slightly increased as 87.9% and the distribution of using reagent strip was similar to the previous year. 3.The percentage of response rate of microscopic photographs of urinary sediment was 80.7% and the percentage of good performance of these tests ware 85.8% to 95.8%.
Bilirubin ; Equidae ; Glucose ; Hydrogen-Ion Concentration ; Korea* ; Leukocytes ; Quality Control ; Reagent Strips ; Specific Gravity ; Urinalysis* ; Urobilinogen

Three external quality assesment trials which composed of 12 control materials(12 chemical materials) for interlaboratory quality control assesment in urinalysis were performed with 446, participants, in each, in the year of 2003. The response rate were 92.4% (414/448), 91.9% (419/456) and 91.3% (408/447), in the first, the second and the third trials, in each. The test items include pH, glucose, protein, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte estrase and specific gravity. The survey results are summarized as follows: 1. The chemical quality control test in urinalysis revealed generally good concordance. 2. The percentage of using urinalysis analyzer was slightly increased as 86.8% and the distribution of using reagent strip was similar to the previous year.
Bilirubin ; Equidae ; Glucose ; Hydrogen-Ion Concentration ; Korea* ; Leukocytes ; Quality Control ; Reagent Strips ; Specific Gravity ; Urinalysis* ; Urobilinogen

Three external quality assesment trials which composed of 12 control materials(12 chemical materials) for interlaboratory quality control assesment in urinalysis were performed with 446, participants, in each, in the year of 2002. The response rate were 91.5% (408/446), 90.8% (405/445) and 90.4% (403/446), in the first , the second and the third trials, in each. The test items include pH, glucose, protein, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte estrase and specific gravity. The survey results are summarized as follows: 1.The chemical quality control test in urinalysis revealed generally good concordance. 2.The percentage of using urinalysis analyzer was slightly decreased as 79.0% and the distribution of using reagent strip was similar to the previous year.
Bilirubin ; Equidae ; Glucose ; Hydrogen-Ion Concentration ; Korea* ; Leukocytes ; Quality Control ; Reagent Strips ; Specific Gravity ; Urinalysis* ; Urobilinogen

The prevalence of intestinal tuberculosis has been markedly decreased with the development of anti-tuberculous chemotherapy, preventive medicine, vaccinations, early detection and treatment of pulmonary tuberculosis, and improved eeonomic conditions. Nowadays, intestinal tuberculosis is a disease that should be differentiated from the inflammatory bowel diseases such as Crohn's disease and ulcerative colitis, Behcet's disease, and colon cancer and amebic colitis. This disease also has a new clinical significance in that it has an increased infection rate and unfavorable outcomes in patients infected by HIV or in those who undergo organ transplantation or receive immunosuppressive agents. Tuberculosis of the duodenum was a rare disease and was not reported in the last decade. Moreover Intestinal tuberculosis extensively involving the small bowel including the duodenum and colon was very rarely reported in the various relateid literature. Recently we experienced a case of advanced intestinal tuberculosis involving the duodenum, jejunum, ileum, and colon accompanied by tuberculous cervical and abdominal lymphadenopathies, in a 49-year-old woman who manifested profound general weakness, diarrhea, and marked weight loss. She was diagnosed pathologically by upper gastrointestinal endoscopy, colonoscopy, and fine needle aspiration cytology as well as by roentgenologic examination. The patient was given antituberculous medication which resulted in dramatic clinical improvement. In this report, we present this case with review of the related literature.
Biopsy, Fine-Needle ; Colitis, Ulcerative ; Colon ; Colonic Neoplasms ; Colonoscopy ; Crohn Disease ; Diarrhea ; Drug Therapy ; Duodenum ; Dysentery, Amebic ; Endoscopy, Gastrointestinal ; Female ; HIV ; Humans ; Ileum ; Immunosuppressive Agents ; Inflammatory Bowel Diseases ; Jejunum ; Middle Aged ; Organ Transplantation ; Prevalence ; Preventive Medicine ; Rare Diseases ; Transplants ; Tuberculosis* ; Tuberculosis, Lymph Node* ; Tuberculosis, Pulmonary ; Vaccination ; Weight Loss

Carcinoid tumor of the ampulla of Vater comprises about 2.0-8.9% of the gastrointestinal earcinoid tumors and 3-5.5% of the duodenal tumor. The climcal manifestations of the carcinoid tumor of the ampulla of Vater are jaundice, hemorrhage, obstruction of duodenurn, or carcinoid syndrome. But the symptoms of carcinoid tumor are nonspecific and diagnosis is delayed until far advanced state, usually. Recently we experienced one case of carcinoid tienor in a 33-year-old woman who had epigastric pain and intermittent melena, so we report it with a review of the literature
Adult ; Ampulla of Vater* ; Carcinoid Tumor* ; Diagnosis ; Esophagus* ; Female ; Hemorrhage ; Humans ; Intestines* ; Jaundice ; Melena ; Stomach*

OBJECTIVES: Recently, the studies for oncogene and tumor marker have been actively performed to investigate the carcinogenesis of gastric carcinoma, but it is not clearly understood. We investigated the expression of tumor suppressor gene and proliferation activity in gastric carcinoma. METHODS: Immunohistochemistry for p53 protein (wild and mutant type), retinoblastoma protein(wild type), and PCNA was performed in 131 cases of formalin fixed paraffin embedded tissue sections of gastric carcinoma. We compared that expression with tissue invasiveness, lymph node metastasis, staging and, Lauren classification, and that expression with each other. RESULTS: 1) The positive ratio of p53 protein, Rb protein, also PCNA in gastric carcinoma was 64.9%, 98.5%, 99.2%, 2) The expression of p53 protein was related to invasiveness, lymph node metastasis, staging, and Lauren classification(p<0.05). 3) The positive reaction for Rb gene was identified in tumor cells as well as proliferating cells. 4) There was a close relationship between Rb gene expression and PCNA in gastric carcinoma (p<0.05). CONCLUSION: Theses results suggested that the expression of p53 gene is related to invasiveness, lymph node metastasis, staging and Lauren classification in gastric carcinoma. Expression of retinoblastoma gene is a closely related to proliferating activity.
Carcinogenesis ; Classification ; Dronabinol* ; Formaldehyde ; Genes, p53 ; Genes, Retinoblastoma ; Genes, Tumor Suppressor ; Immunohistochemistry ; Lymph Nodes ; Neoplasm Metastasis ; Oncogenes ; Paraffin ; Proliferating Cell Nuclear Antigen* ; Retinoblastoma ; Retinoblastoma Protein

To examine the relationship between gastric ulcer and gastric cancer, we investigated petients with gastric ulcer diagnosed from 1986 to l993. We reviewed the endoscopic reports and films of patients with gastric ulcer retrospectively. We excluded the patients who was diagnosed as gastric cancer in two years follow-up. The results were as follaws; 1) During follow-up of the original cohort, there were 5 patients(0.5~%) in whom gastric cancer developed at the same site initially diagnosed as gastric ulcer. The gross type of the lesion was early gastric cancer in two and advanced gastric cancer in three patients 2) The time interval between the initial diagnosis of gastric ulcer and cancer development was from 31 months to 70 months (average 51 months). 3) At the initial examination of 5 gastric cancer patients, the diagnosis was active gastric ulcer in four, multiple gastric ulcer in one, and linear gastrie ulcer in one patient. Characteristic endoscopic findjngs were gastric ulcer with clubbing mucosal folds in three and gastric ulcer with bleeding in one patient. 4) During the follow-up period, endoscopicailly and histologically healing of gastric uleer was observed in one patient and histologic finding showed chronic superficial gastritits with intestinal metaplasia. These results suggest that gastric ulcers rarely progress to gastric cancer. However if the endoscopic findings are suspicious for malignancy, then follow-up endoscopy until complete healing should be done.
Cohort Studies ; Diagnosis ; Endoscopy ; Follow-Up Studies* ; Hemorrhage ; Humans ; Metaplasia ; Stomach Neoplasms* ; Stomach Ulcer* ; Ulcer

The aim of the present study was to evaluate the ability of Tl-201 abdominal SPECT to differentiate between chronic focal pancreatitis and pancreatic malignancy. Seventeen patients (12 men, 5 women; mean age, 56 years; 9 pancreatic cancer, 8 chronic pancreatitis) with pancreatic mass were prospectively investigated with Tl-201 abdominal SPECT. In all patients, CT and/or US could not clarify the nature of the pancreatic mass. Focal hot uptake was present in 8 of 9 patients with pancreatic cancer, while it was present in 2 of 8 patients with chronic pancreatitis. Therefore, the sensitivity and specificity of the present study were 89% and 75%, respectively. A significant difference of Tl-201 uptakes was noted between benign and malignant masses (p& 0.05). Therefore, we concluded that Tl-201 abdominal SPECT was a useful test in differentiation of malignant from benign pancreatic mass, especially when the differentiation could not be made by other imaging modalities
Abdomen/*radionuclide imaging ; Chronic Disease ; Diagnosis, Differential ; Evaluation Studies ; Female ; Follow-Up Studies ; Human ; Male ; Middle Age ; Pancreatic Neoplasms/*radionuclide imaging ; Pancreatitis/*radionuclide imaging ; Prospective Studies ; Reproducibility of Results ; Sensitivity and Specificity ; Support, Non-U.S. Gov't ; Thallium Radioisotopes/*diagnostic use ; Tomography, Emission-Computed, Single-Photon/methods

Leiomyosarcoma of the duodenum is an uncommon tumor and have not specific symptoms and signs, almost all cases of tumor were diagnosed in operating room. This tumor is generally firm, relatively well encapsulated, lobulated and often soft if they undergo hemorrhagic necrosis. Most authors emphasized the relative number of mitosis as the most reliable findings of leiomyosarcoma. Recently, we experienced a case of leiomyosarcoma of duodenum which was confirmed by operative and pathological diagnosis.
Diagnosis ; Duodenum* ; Leiomyosarcoma* ; Mitosis ; Necrosis ; Operating Rooms