1.Osteochondroma in the Soft Tissue: A case report.
Suk Woong YOON ; Tae Sung HWANG ; Hee Cho JAE ; Mi Kyung SHIN ; Bo Keun JEON
The Journal of the Korean Orthopaedic Association 1997;32(7):1817-1820
The diagnosis of soft tissue osteochondroma should be considered when a well-defined osseous mass is located in the soft tissues. The differential diagnosis includes myositis ossificans, tumoral calcinosis, synovial chondromatosis, and soft tissue osteosarcoma, true osteochondroma which arises from bone. One case of soft tissue osteochondroma in the knee, a lesion of uncertain pathogenesis is reported.
Calcinosis
;
Chondromatosis, Synovial
;
Diagnosis
;
Diagnosis, Differential
;
Knee
;
Myositis Ossificans
;
Osteochondroma*
;
Osteosarcoma
2.Direct Percutaneous Needle Puncture and Intrapulmonary Lymphatic Embolization for Treatment of Chylothorax in a Patient with Lymphoma
Bo Lee HWANG ; Hoon KWON ; Chang Ho JEON ; Chang Won KIM
Journal of the Korean Radiological Society 2020;81(5):1222-1226
Lymphoma is a common cause of nontraumatic chylothorax. Clinical success rates of thoracic duct embolization are lower in patients with nontraumatic chylothorax compared to patients with traumatic chylothorax. Herein, we report a case of nontraumatic chylothorax and lymphoma in a 77-year-old man managed with thoracic duct embolization. The chest tube drainage decreased but not was sufficient to enable removal of the chest tube. Therefore, a second embolization was performed through a direct puncture of the lymphatic mass in the lung, following which the chyle leakage ceased, and the chest tube was removed. The treatment strategy discussed in this report may be an effective therapeutic option for select patients with nontraumatic chylothorax.
3.Clinical Features and Significance of Screening Test in Distant Metastases of Head and Neck Squamous Cell Carcinomas.
Eui Gee HWANG ; Beom Gyu KIM ; Bo Seong SIM ; Sea Yuong JEON ; Tae Gee JUNG
Korean Journal of Otolaryngology - Head and Neck Surgery 1997;40(8):1133-1138
BACKGROUND: As treatment of head and neck cancer has improved, the trend showed that distant metastases(DMs) have become an increasingly common cause of death. Knowing about the presence of DMs is important for deciding treatment protocol. OBJECTIVES: The purpose of this study was to identify tumor characteristics(site of primary tumor, TNM staging, tumor differentiation) of head and neck squamous cell carcinoma related to higher incidence of DMs and determine the accuracy of blood test(alkaline phosphatase, calcium, LFT) in detection of DMs. MATERIALS AND METHODS: A retrospective review was carried out on 74 patients of 134 patients admitted to department of Otolaryngology, Gyeongsang National University Hospital from January 1987 to June 1994. RESULTS: The review revealed 21 DMs in 18 patients. DMs occurred in 18(24.3%) of 74 patients. Lung(47.6%) and bone(42.9%) were common DM site. As site of primary tumor, pharynx increased the incidence of DMs more than larynx, PNS & nasal cavity and oral caity. The incidence of DMs was increased in patients who had tumors of advanced T stage, N stage, Stage(statistically significant, p<0.05) and poor histologic differentiation(statistically insignificant, p=0.11). CONCLUSION: Abnormal alkaline phosphatase and hypercalcemia showed low sensitivity(56% and 0%) for detection of bone metastases. So blood tests(alkaline phosphatase, calcium) may be not useful for screening test for bone metastases. But the sensitivity of abnormal LFT was insignificant due to only one case of liver metastases in our study.
Alkaline Phosphatase
;
Calcium
;
Carcinoma, Squamous Cell*
;
Cause of Death
;
Clinical Protocols
;
Head and Neck Neoplasms
;
Head*
;
Humans
;
Hypercalcemia
;
Incidence
;
Larynx
;
Liver
;
Mass Screening*
;
Nasal Cavity
;
Neck*
;
Neoplasm Metastasis*
;
Neoplasm Staging
;
Otolaryngology
;
Pharynx
;
Retrospective Studies
4.A Case of Recurrent Subacute Necrotizing Lymphadenitis with Pancytopenia.
Bo Kwon HWANG ; Jin Seok JEON ; Jae Ho BYUN ; Gyu Taeg LEE ; Jin Woo JEON ; Sung Gyu PARK ; Jong Ho WON ; Seung Ho BAICK ; Dae Sik HONG ; Hee Sook PARK
Korean Journal of Hematology 1997;32(2):318-323
We report a case of recurrent subacute necrotizing lymphadenitis with pancytopenia in 21-years-old-woman. She was admitted to our hospital 4-years interval with fever and abdominal pain. Laboratory findings of the last admission showed pancytopenia, such as WBC 700/microliter, hemoglobin 6.0mmol/L (9.7g/dL), hematocrit 28.8%, and platelet 54,000/microliter. Abdominal CT showed hepatosplenomegaly, enlarged conglomerated lymph nodes in splenic hilum, lesser sac, celiac root, and paraaortic areas. Bone marrow biopsy showed hypocellular marrow (20%) with increased number of megakaryocyte, myeloid hyperplasia, and hemophagocytic histiocytes suggesting infectious process. We performed exploratory laparotomy, and pathologic finding revealed subacute necrotizing lymphadenitis-Kikuchi disease-. She was recovered on 26th hospital day with conservative treatment.
Abdominal Pain
;
Biopsy
;
Blood Platelets
;
Bone Marrow
;
Fever
;
Hematocrit
;
Histiocytes
;
Histiocytic Necrotizing Lymphadenitis
;
Hyperplasia
;
Laparotomy
;
Lymph Nodes
;
Lymphadenitis*
;
Megakaryocytes
;
Pancytopenia*
;
Peritoneal Cavity
;
Tomography, X-Ray Computed
5.Enhancement of Protein Productivity of Recombinant Hepatitis A Virus VP1 in Stably Transfected Drosophila melanogaster S2 Cells.
Hwang Bo JEON ; Jong Hwa PARK ; Hyun Ho LEE ; Do Hyung KIM ; Hee Young LEE ; Dong Hwa SHON ; Wonyong KIM ; In Sik CHUNG
Journal of Bacteriology and Virology 2012;42(1):69-75
The effect of DMSO and sodium butyrate on the production of recombinant hepatitis A virus (HAV) capsid protein VP1 was evaluated and optimized in the culture of stably transfected Drosophila melanogaster S2 cells using culture plates and spinner flasks. The effect of DMSO and sodium butyrate was also evaluated to improve the recombinant VP1 production in stably transfected Drosophila S2 cells. A production level of 0.88 mg of recombinant VP1/liter was obtained in the culture-plate culture of stably transfected S2 cells at 6 days after induction with 0.5 mM CuSO4. The supplements of 2% DMSO and 10 mM sodium butyrate at 4 days post-inoculation increased recombinant VP1 accumulation by 141 and 104%, respectively, resulting in 2.17 and 1.7 mg/liter of recombinant VP1 production. In spinner flasks, recombinant VP1 production reached maximum level at 9 days after induction with 0.5 mM CuSO4, with approximately 4.96 mg/liter of recombinant VP1 production level. When 2% DMSO or 10 mM sodium butyrate was added at 5 days post-inoculation, the recombinant VP1 production was increased to 8.35 and 5.85 mg/liter, respectively. However, the synergistic effects of DMSO and sodium butyrate were not observed. These results indicate that DMSO and/or sodium butyrate can be successfully used to improve the recombinant HAV VP1 production in culture plates and spinner flasks.
Butyrates
;
Capsid Proteins
;
Dimethyl Sulfoxide
;
Drosophila
;
Drosophila melanogaster
;
Efficiency
;
Hepatitis
;
Hepatitis A
;
Hepatitis A virus
;
Sodium
6.Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea.
Pyo Yeon CHO ; Jung Min PARK ; Myeong Ki HWANG ; Seo Hye PARK ; Yun Kyu PARK ; Bo Young JEON ; Tong Soo KIM ; Hyeong Woo LEE
The Korean Journal of Parasitology 2017;55(3):357-361
During civil engineering construction near Sejong-ro, Jongro-ku, Seoul, cultural sites were found that are thought to have been built in the 15th century. This area was home to many different people as well as the leaders of the Yi dynasty. To gain further insight into the life styles of the inhabitants of the old capital, soil samples were collected from various areas such as toilets, water foundations, and drainage ways. Parasite eggs were examined by microscopy after 5 g soil samples were rehydrated in 0.5% trisodium phosphate solution. A total of 662 parasite eggs from 7 species were found. Species with the highest number of eggs found were Ascaris lumbricoides (n=483), followed by Trichuris trichiura (138), Trichuris vulpis (21), Fasciola hepatica (8), Clonorchis sinensis (6), Paragonimus westermani (4), and Metagonimus yokogawai (2). These findings indirectly indicate the food habits of the people in Yi dynasty.
Ascaris lumbricoides
;
Clonorchis sinensis
;
Drainage
;
Eggs*
;
Fasciola hepatica
;
Food Habits
;
Foundations
;
Heterophyidae
;
Korea*
;
Life Style
;
Microscopy
;
Ovum*
;
Paragonimus westermani
;
Parasites*
;
Seoul*
;
Soil
;
Trichuris
;
Water
7.Induction of Melanoma Cell-Selective Apoptosis Using Anti-HER2 Antibody-Conjugated Gold Nanoparticles
Hyeon Jun JEON ; Byul Bo Ra CHOI ; Kwang Ha PARK ; Dae Seok HWANG ; Uk Kyu KIM ; Gyoo Cheon KIM
Yonsei Medical Journal 2019;60(6):509-516
PURPOSE: This study was conducted to verify the induction and mechanism of selective apoptosis in G361 melanoma cells using anti-HER2 antibody-conjugated gold nanoparticles (GNP-HER2). MATERIALS AND METHODS: Following GNP-HER2 treatment of G361 cells, cell cycle arrest and apoptosis were measured by WST-1 assay, Hemacolor staining, Hoechst staining, immunofluorescence staining, fluorescence-activated cell sorting analysis, and Western blotting.
Actins
;
Apoptosis Inducing Factor
;
Apoptosis
;
Blotting, Western
;
Caspase 3
;
Caspases
;
Cell Adhesion
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Cell Death
;
Cyclin A
;
Cyclin D1
;
Cyclin E
;
Cyclins
;
Cytochromes c
;
Cytoplasm
;
DNA Fragmentation
;
Down-Regulation
;
Flow Cytometry
;
Fluorescent Antibody Technique
;
Focal Adhesions
;
Melanoma
;
Mitochondria
;
Nanoparticles
;
Phosphotransferases
;
Receptor, Epidermal Growth Factor
;
Up-Regulation
8.Lymphomatoid Granulomatosis Involving the Lung and Brain in a Child: A Case Report
Sook Min HWANG ; So-Young YOO ; Ji Hye KIM ; Tae Yeon JEON ; Sae Lin OH ; Eun Yoon CHO ; Bo-Kyung JE
Journal of the Korean Radiological Society 2021;82(1):267-273
Lymphomatoid granulomatosis (LG) is a rare B-cell type angiocentric lymphoproliferative disease that can progress to extranodal lymphoma with high mortality. It most commonly affects the lungs, although extrapulmonary systems, including the brain and skin, can also be involved. LG in pediatric patients has been very rarely reported in the literature with limited imaging features. Herein, we report a pediatric case of LG involving the lung and brain with characteristic imaging findings.
9.Two Cases of Pregnancies Complicated with Central Diabetes Insipidus.
Seung Ho LEE ; Jin A KIM ; Yong Jin KIM ; Yu Kyung LEE ; Kyu Ri HWANG ; Soon Sup SHIM ; Hye Won JEON ; Joong Shin PARK ; Jong Kwan JUN ; Kwang Bum BAI ; Bo Hyun YOON ; Hee Chul SYN
Korean Journal of Obstetrics and Gynecology 2006;49(3):667-673
Diabetes insipidus is an unusual cause of urinary frequency during pregnancy. It occurs in 2 to 6 per 100,000 pregnancies. It is a disorder in which the abnormal secretion, degradation, or activity of vasopressin cause hypotonic polyuria, polydipsia, and dehydration. And this syndrome appears to be associated with multiple gestations, preeclampsia, and abnormal liver function. We report two cases of pregnancies complicated with diabetes insipidus. One patient was diagnosed during pregnancy and DDAVP (L-deamino-8-d-arginine vasopressin) was used to manage diabetes insipidus. The other patient was diagnosed before pregnancy and DDAVP was not used.
Deamino Arginine Vasopressin
;
Dehydration
;
Diabetes Insipidus
;
Diabetes Insipidus, Neurogenic*
;
Humans
;
Liver
;
Polydipsia
;
Polyuria
;
Pre-Eclampsia
;
Pregnancy*
;
Vasopressins
10.Single Blinded, Randomized, Active Drug Comparative, Multi-center Study to Evaluate the Therapeutic Efficacy of Gliptide(R)Tab (Sulglycotide 200 mg) in Gastritis Patients; Phase IV Study.
Jeong Jo JEONG ; Myung Gyu CHOI ; Hwang CHOI ; Jae Myung PARK ; Jung Hwan OH ; Eun Jeong JEON ; Bo In LEE ; In Seok LEE ; Sang Woo KIM ; Sang Wook CHOI ; Gyu Yong CHOI ; In Sik CHUNG
Korean Journal of Gastrointestinal Endoscopy 2007;35(3):125-132
BACKGROUND/AIMS: Sulglycotide is a sulphoglycopeptide with antiulcer and cytoprotective activity that is derived from the porcine duodenal mucosa. This study carried out a 3-week single blinded, randomized, multicenter, noninferiority trial to compare the efficacy of oral sulglycotide in treating symptomatic erosive gastritis with that of rebamipide. METHODS: Seventy-three patients with symptomatic erosive gastritis were randomized to receive 3 weeks of treatment with either sulglycotide or rebamipide. The primary efficacy parameter was the endoscopic cure rate and the endoscopic improvement rate, and the secondary parameter was the improvement rate in the dyspepsia symptom scores. RESULTS: Of the 73 patients recruited, 36 received sulglycotide and 37 received rebamipide. The endoscopic cure rate in the sulgycotide and rebamipide group was 29.6% and 25.0% according to per protocol (PP) analysis, respectively (p=0.69). The endoscopic improvement rate in the sulglycotide and rebamipide group was 63.0% and 62.5% according to PP analysis, respectively (p=0.97). The symptomatic improvement rate in the sulgycotide and rebamipide group was 51.9% and 53.1% according to PP analysis, respectively (p=0.74). The result of 90% CIs for the difference in endoscopic cure rate, endoscopic improvement rate and symptom improvement rate between the two groups met the criteria for the non-inferiority of sulglycotide to rebamipide. CONCLUSIONS: Sulglycotide was not inferior to rebamipide in both erosion healing and symptom relief in patients with acute and chronic gastritis.
Dyspepsia
;
Gastritis*
;
Humans
;
Mucous Membrane