1.Correlation of Tumor Angiogenesis and nm23-H1 Expression with Lymph Node Metastasis in Proper Muscle Gastric Cancer.
Eun Sook NAM ; Gu KANG ; Hyung Sik SHIN ; Young Eui PARK
Korean Journal of Pathology 1997;31(5):410-416
We studied clinicopathologic features of 44 cases of PM (proper muscle) gastric cancer, correlated the lymph node metastasis and found the result of immunohistochemical staining for tumor angiogenesis using antibodies to Factor VIII-related antigen and nm23-H1, known as meatastasis inhibitory substance. The results were as follows: 1) The average age of these 44 cases of PM gastric cancer was 55.1 years old (range 35-81). The ratio of male to female was 2.2 : 1. The tumor was located at the antrum of stomach in 72.7% of the cases. The average size of the tumor was 4.1 cm (range 0.6-9). The gross features were comprised of Borrmann type I (6.8%), II (29.6%), III (56.8%), IV (6.8%), respectively. The microscopic type was a diffuse type in 70.5% and an intestinal type in 29.5%. There were lymph node metastasis in 25 of the 44 cases (56.8%). 2) The microvessel count was higher in the lymph node positive group (average 69.3) than in the lymph node negative group (average 45.6) (P=0.004). There was a higher microvessel density in diffuse type, over 4 cm of tumor size, proximally located tumor, older than 50 years, Borrmann type II and IV, but there was no statistically significant correlation. 3) The more decreased expression of nm23-H1 was found in the lymph node positive group (56.0%) than in the lymph node negative group (31.6%), but showed no statistical significance (P=0.0142). There was no significant correlation between the expression of nm23-H1 and the other clinicopathologic factors. We suggest that the microvessel count of the tumor angiogenesis may be a prognostic factor for predicting lymph node metastasis and also help to determine the therapeutic modalities of PM gastric cancer.
Antibodies
;
Female
;
Humans
;
Lymph Nodes*
;
Male
;
Microvessels
;
Neoplasm Metastasis*
;
Stomach
;
Stomach Neoplasms*
;
von Willebrand Factor
2.Cytologic Findings of Epithelial-Myoepithelial Carcinoma of the Salivary Gland: A Case Report.
Eun Sook NAM ; Gu KANG ; Hyung Sik SHIN
Korean Journal of Cytopathology 1996;7(1):64-68
The report of aspiration cytologic findings of epithelial-myoepithelial carcinoma(EMC) in the salivary gland is extremely rare. We present a case of fine needle aspiration cytology(FNAC) from EMC in the right submandibular gland of a 46 years old male patient. Neck CT scan revealed a confined lesion in the submandibular gland without enlargement of the regional lymph node. FNAC from the tumor showed several three-dimensional cellular clusters with admixed normal acinar cells. They frequently formed branching tubular structures composed of two type of cells; darker cells having eosinophilic scanty cytoplasm with round dense nuclei and clear cells having abudant pale cytoplasm with vesicular nuclei at the periphery of clusters. The tumor cells of both types did not show pleomorphism or mitoses. The resected submandibular gland showed an ill-defined whitish firm tumor, measuring 2 X1.5X2cm. The histology revealed an infiltrative tumor showing characteristic two cell types in a duct-like arrangement surrounded by thin basement menbrane. An inner layer of darker cells and outer layer of clear cells were postive for cytokeratin in the former and S-100 protein in the latter on the immunohistochemical stain.
Acinar Cells
;
Biopsy, Fine-Needle
;
Cytoplasm
;
Eosinophils
;
Humans
;
Keratins
;
Lymph Nodes
;
Male
;
Middle Aged
;
Mitosis
;
Neck
;
S100 Proteins
;
Salivary Glands*
;
Submandibular Gland
;
Tomography, X-Ray Computed
3.Pathologic Classification of the Resected Gastric Carcinoma.
Gu KANG ; Hyung Sik SHIN ; Min Chul LEE ; Young Euy PARK ; Joo Seop KIM ; Chul Jae PARK ; Soo Tong PAI
Korean Journal of Pathology 1992;26(1):17-27
A total of 212 cases of gastric carcinoma resected at Kang-Dong Sacred Heart Hospital during the period of 4 years from December 1986 to December 1990 were examined according to Borrmann, Mulligan-Rember, Ming and WHO methods based on histopathological investigations. In Mulligan-Rember (M-R) classification, intestinal cell type (IC) was frequently seen in Borrmann type I and II; pyloro-cardiac gland cell type (PC) in II and III, and mucous cell type (MC) in IV and III. Expanding growth pattern was more frequent in IC, infiltrative growth pattern in MC, and PC showed less infiltrative growth than MC. In gross type, the most expanding growth pattern was seen in Advanced gastric carcinoma type (AGC) I and the next one was in AGC II; the ratio of infiltrative versus expanding type was highest in AGC IV and next in AGC resembling early gastric carcinoma (EGC) and AGC III in order. On WHO classification except squamous type, all the papillary type showed expanding growth and infiltrative growth was frequently seen in signet-ring cell, undifferentiated, tubular and mucinous types in order. Lymphoid stroma was more frequently found in expanding type than infiltrative type. The frequency of angioinvasion of tumor cells observed was high in AGC resembling EGC, AGC II, III, IV, I and EGC in order. In WHO classification excluding squamous type, undifferentiated and signet-ring cell types occurred more frequently under the age of 60 and papillary type were more frequnetly seen over the age of 60. But tubular type had no difference between the two age groups. In Ming's classification, expanding type was more frequently seen than infiltrative type over the age of 60.
4.The Relationship of AgNORs to the Survival Rate of Patients with Invasive.
Gu KANG ; Eun Sook NAM ; Hyung Sik SHIN ; Soon Ran KIM
Journal of the Korean Society of Coloproctology 1997;13(1):43-50
Nucleolar organizer regions(NORs) are argyrophilic and have a loops of DNA that tran scribes to ribosomal RNA by RNA Polymerase I and are involved in formation of nucleolus. They are used in measuring proliferative activity of cells. Mean AgNORs count is increased or large and NORs are irregular in shape in malignant tumors. To examine the relationship of AgNORs to the survival rate of the patients with invasive colorectal adenocarcinoma, we counted mean AgNORs in 200 tumor cells and mean AgNORs#(mean AgNORs in counting AgNORs of the upper 40 nuclei after sorting AgNORs counts of 200 cell nuclei in descending order) after AgNOR staining using 45 cases of formalin-fixed, paraffin-embedded tissue surgically excised at Kang-Dong Sacred heart hospital. The survival rates were not related to age, sex, locations, differentiation, mAgNORs and mAgNORs# except Dukes'stages. There were only statistical significances in AgNORs# between high and low age group(p=0.0001), and between colon and rectum(p=0.005). But it is known that there could be different results according to staining time, fixation and preservation of tissues, counting methods in measuring AgNORs. There might be clinical usefulness of AgNOR if more cases are examined together with better tissue processing and staining methods.
Adenocarcinoma
;
Cell Nucleus
;
Colon
;
Colorectal Neoplasms
;
DNA
;
Heart
;
Humans
;
Nucleolus Organizer Region
;
RNA Polymerase I
;
RNA, Ribosomal
;
Survival Rate*
5.Metastatic Alveolar Soft Part Sarcoma.
Se Hyuck PARK ; Kyu Ho LEE ; Hyo Keun RHIM ; Kil Woo LEE ; Hyung Sik SHIN ; Gu KANG ; Bo Chul SHIN
Journal of Korean Neurosurgical Society 1991;20(1-3):116-123
A case of metastatic alveolar soft part sarcoma is presented with clincal, pathological and radiological features. Alveolar soft part sarcoma is a rare soft-tissue neoplasm that is malignant and invariably fatal. It was first described and named by Christopherson, et al. in 1952. Since 1952 numerous examples of this tumor have been reported and have been studied with the electron microscope, but there is still considerable uncertainty as to the exact histogenesis of the tumor. Most cases occur in young females involving the lower extrimities especially in the right side. The most initial presenting symptom is a slowgrowing painless mass and the principal metastatic sites are the lungs, followed by the brain and skeleton. Cerebral metastasis, in fact, may be the first manifestation of the disease. Treatment is radical surgical excision but radiotherapy and chemotherapy are less effective. We present the reported case of metastatic alveolar soft pat sarcoma with electron microscopic findings.
Brain
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Drug Therapy
;
Female
;
Humans
;
Lung
;
Neoplasm Metastasis
;
Radiotherapy
;
Sarcoma
;
Sarcoma, Alveolar Soft Part*
;
Skeleton
;
Uncertainty
6.Comparison of the Efficacy between Risperidone and Quetiapine in Elderly Patients with Delirium.
Han Seok KIM ; Young Cho CHUNG ; Kang Joon LEE ; Gu Hyung KWON ; Hyung Seok SEO ; Young Min PARK
Journal of Korean Geriatric Psychiatry 2007;11(1):29-34
OBJECTIVES: Many studies showed that risperidone and olanzapine in the treatment of delirium were similar to haloperidol, in side effects were superior to that. Quetiapine is frequently used in delirious patients. However, the studies of quetiapine in the treatment of delirium are very few. This study was designed to compare the efficacy of risperidone and quetiapine in elderly patients with delirium. METHODS: We divided 2 groups (risperidone and quetiapine) of elderly patients with delirium. We compared the two groups of elderly patients with delirium by Korean Version of Delirium Rating Scale (K-DRS) and Korean Mini-Mental State Examination (K-MMSE) at baseline and 1 week later. RESULTS: Our results showed that risperidone and quetiapine were efficacious in the treatment of elderly patients with delirium according to using K-DRS and K-MMSE. There were no significant differences in the degree of effects in both drugs. CONCLUSION: We compared the efficacy of risperidone and quetiapine in the treatment of delirium. Quetiapine was as efficacious as risperidone in the treatment of the elderly patients with delirium. In future, the sample size need to be increased in the studies of delirium. And the evaluation of long-term side effects related to quetiapine need to be performed.
Aged*
;
Delirium*
;
Haloperidol
;
Humans
;
Risperidone*
;
Sample Size
;
Quetiapine Fumarate
7.Evaluating the Quality of Basic Life Support Information for Primary Korean-Speaking Individuals on the Internet
Hee Do KANG ; Hyung Jun MOON ; Jung Won LEE ; Jae Hyung CHOI ; Dong Wook LEE ; Hyun Su KIM ; In Gu KANG ; Doh Eui KIM ; Hyung Jung LEE ; Han You LEE
Health Communication 2018;13(2):125-132
PURPOSE: The aim of this study is to investigate the quality of basic life support (BLS) information for primary Korean-speaking individuals on the internet.METHODS: Using the Google © search engine, we searched for the terms ‘CPR’, ‘cardiopulmonary resuscitation (in Korean)’ and ‘cardiac arrest (in Korean)’. The accuracy, reliability and accessibility of web pages was evaluated based on the 2015 American heart association(AHA) guidelines for CPR & emergency cardiovascular care, the health on the net foundation code of conduct and Korean web content accessibility guidelines 2.1, respectively.RESULTS: Of the 178 web pages screened, 50 met criteria for inclusion. The overall quality of BLS information was not enough (median 5/7, IQR 4.75-6). 23(36%) pages were created in accordance with 2010 AHA guidelines. Only 24(48%) web pages educated on how to use the automated electrical defibrillator. The attribution and transparency of the reliability of pages was relatively low, 20(40%) and 16(32%). The web accessibility score was relatively high.CONCLUSION: A small of proportion of internet web pages searched by Google have high quality BLS information for a Korean-speaking population. Web pages based on past guideline were still being searched. The notation of the source of CPR information and the transparency of the author should be improved. The verification and evaluation of the quality of BLS information exposed to the Internet are continuously needed.
Cardiopulmonary Resuscitation
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Defibrillators
;
Education
;
Emergencies
;
Heart
;
Heart Arrest
;
Internet
;
Resuscitation
;
Search Engine
8.Self Induced Foreign Body Injection Patient: A Case Report.
Hyung Keun KANG ; Hyo Seok SEO ; Min Gu KANG ; Choong Hyun CHANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2008;35(5):622-625
PURPOSE: In the past, laymen or beauty parlor employees commonly injected people with unproven foreign material such as paraffin, silicone, and cooking oil. We have treated a patient who injected foreign material into her face and neck. METHODS: For the last 20 years, a 43-year-old woman has been injecting herself in the face and neck with foreign material. There was no tenderness, erythema, pain, ulceration, or necrosis. However many visible, touchable subcutaneous masses were found. Her face was extremely ugly and disfigured by the foreign material. We could not recognize the boundary between her neck and mandible. The occipital scalp drooped extremely. Over the past 3 years, from February 2005 to October 2007, we performed 15 operations. RESULTS: We conducted a cephalometric facial analysis to compare preoperative and postoperative facial diameter. The patient's upper face diameter decreased from 67cm to 60 cm, the mid face diameter from 82cm to 59cm, the lower face diameter from 63 cm to 50cm, and the neck circumference diameter from 53cm to 44cm, respectively. The mid sagittal diameter decreased from 26 cm to 23cm. The total excised tissue weight was 4023.7 gram after 15 operations. CONCLUSION: Serial excision of face and neck masses in a patient who injected herself with foreign material resulted in a satisfactory outcome.
Adult
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Beauty
;
Cooking
;
Erythema
;
Female
;
Foreign Bodies
;
Humans
;
Mandible
;
Neck
;
Necrosis
;
Paraffin
;
Scalp
;
Silicones
;
Ulcer
9.Tumor-Specific Immunity Induced by Cryoablation in a Murine Renal Cell Carcinoma Model.
Hyung Keun KIM ; Jong Hyun PYUN ; Seok CHO ; Sung Gu KANG ; Jeong Gu LEE ; Je Jong KIM ; Jun CHEON ; Hong Seok PARK ; Seok Ho KANG
Korean Journal of Urology 2014;55(12):834-840
PURPOSE: To evaluate tumor-specific immunity and define the mechanisms involved in the cryoimmunologic response, we compared the tumor control efficacy and immunologic responses of cryoablation with those of surgical excision in a tumor rechallenge model. MATERIALS AND METHODS: Sixty BALB/c mice with RENCA tumors that were generated in the left flank area underwent cryoablation or radical excision. The mice successfully treated were rechallenged with RENCA or an undifferentiated colon carcinoma cell line, CT26, in the contralateral right flank area. The recurrence rate after tumor rechallenge in each group was then observed. To assess the immunologic response of each treatment modality, fluorescent-activated cell sorting (FACS) analysis and a cytotoxicity assay using 51Cr release were performed. RESULTS: After reinoculation of the RENCA cells, the rate of tumor growth was significantly higher in the surgical excision group than in the cryoablation group (94.4% vs. 11.1%, p=0.001). In the cryoablation group, the tumor growth rate was significantly increased after rechallenge of CT26 cells compared with RENCA (94.1% vs. 11.1%, p=0.001). The cryoablation group showed an elevated CD3, CD4, CD8 T, and natural killer cell count in the FACS analysis and also showed significantly increased cytotoxicity in the 51Cr release assay compared with the excision group. CONCLUSIONS: These results showed that cryoablation, compared to surgical resection, was more effective in preventing tumor growth after rechallenge with RENCA cells and that this response was tumor-specific, because the CT26 cells did not have the same effect.
Animals
;
CD4-Positive T-Lymphocytes/immunology
;
CD8-Positive T-Lymphocytes/immunology
;
Carcinoma, Renal Cell/*immunology/pathology/*surgery
;
Cell Death
;
Cryosurgery/*methods
;
Cytotoxicity, Immunologic
;
Disease Models, Animal
;
Kidney Neoplasms/*immunology/pathology/*surgery
;
Lymphocyte Count
;
Lymphocytes, Tumor-Infiltrating/immunology
;
Mice, Inbred BALB C
;
Neoplasm Recurrence, Local/immunology
;
Neoplasm Transplantation
10.Renal cryoablation of small renal masses: A Korea University experience.
Hyung Keun KIM ; Jong Hyun PYUN ; Jae Yoon KIM ; Seung Bin KIM ; Seok CHO ; Sung Gu KANG ; Jeong Gu LEE ; Je Jong KIM ; Jun CHEON ; Seok Ho KANG
Korean Journal of Urology 2015;56(2):117-124
PURPOSE: To evaluate the perioperative, functional, and oncological outcomes of renal cryoablation (RC) of small renal masses (SRMs) performed in Korea University Hospital. MATERIALS AND METHODS: We reviewed an Institutional Review Board-approved database of 70 patients who underwent RC and were followed up for a minimum of 3 months by a single surgeon in Korea University Hospital from August 2007 to May 2014. Among these patients, 68 patients (79 renal masses) were enrolled in our research. We evaluated perioperative, functional, and oncologic outcomes of RC. RESULTS: A total of 68 patients (79 renal masses) underwent RC in our institution. The mean age of the patients was 62.0 years. The mean tumor size was 2.25 cm. Among the 59 patients who underwent laparoscopic surgery, only 1 patient (1.47%) was converted to open surgery. No other perioperative complications occurred. The mean preoperative and 1-month postoperative estimated glomerular filtration ratio (eGFR) were 71.8 and 68.3 mL/min/1.73 m2, respectively (p=0.19). The mean 1-year postoperative eGFR was 65.0 mL/min/1.73 m2 (p=0.25). The mean follow-up period was 59.76 months (range, 3-119 months). Local tumor recurrence occurred in eight tumors (15.4%; a total of 52 renal cell carcinomas). Concerning treatment in the patients with recurrence, five patients underwent re-treatment and three patients are under active surveillance. None of the eight patients who experienced local recurrence had additional recurrence or tumor progression during the follow-up period. In our study, the recurrence-free rate was 83.0% and the cancer-specific survival rate was 100%. Moreover, the 5- and 10-year overall survival rates were both 100%. CONCLUSIONS: Long-term experience with RC in our institution demonstrates that RC is a safe and effective treatment for patients with SRMs.
Adult
;
Aged
;
Aged, 80 and over
;
Biopsy
;
Carcinoma, Renal Cell/pathology/radiography/*surgery
;
Cryosurgery/adverse effects/*methods
;
Follow-Up Studies
;
Glomerular Filtration Rate
;
Humans
;
Kidney Neoplasms/pathology/radiography/*surgery
;
Laparoscopy/adverse effects/methods
;
Middle Aged
;
Neoplasm Recurrence, Local
;
Tomography, X-Ray Computed
;
Treatment Outcome
;
Young Adult