1.The current status of blood component transfusion at the armed forces general hospital.
Jong Weon CHOI ; Young Chul OH ; Jin Tae SUH
Korean Journal of Blood Transfusion 1993;4(1):7-13
No abstract available.
Arm*
;
Blood Component Transfusion*
;
Hospitals, General*
2.A study on the rapid development of ciprofloxacin resistane in methicillin-resistant staphylococcus aureus.
Chul Weon CHOI ; Hee Jin JUNG ; Heung Jung WOO ; Sei Yong KANG ; Woo Joo KIM ; Seung Chul PARK
Korean Journal of Medicine 1993;45(1):92-98
No abstract available.
Ciprofloxacin*
;
Methicillin Resistance*
;
Methicillin-Resistant Staphylococcus aureus*
3.Three Cases of Reconstructive Rhinoplasty Using a Local Flap or a Split Calvarial Bone Graft.
Dong Hak JUNG ; Jong Chul CHOI ; Weon Seog CHOI ; Yeong Seok YUN
Korean Journal of Otolaryngology - Head and Neck Surgery 1998;41(6):799-803
The nose is located centrally in the face and occupy an important place in the harmonic architecture of the face. Also, it plays important functions such as respiraton, olfaction and phonation. Therefore, reconstructive rhinoplasty is dealt with both cosmetic and functional aspect in mind. We have recently experienced three cases of reconstructive rhinoplasty for seborrheic keratosis of the nose, traumatic nasal defect, and basal cell carcinoma of the nose. Local flap and split calvarial bone graft were used for the reconstruction of the nose.
Carcinoma, Basal Cell
;
Keratosis, Seborrheic
;
Nose
;
Phonation
;
Rhinoplasty*
;
Smell
;
Transplants*
4.A Case of Collagenous Colitis.
Jae Seon KIM ; Chul Weon CHOI ; Gwan Gyu SONG ; Jae Myung YU ; Young Tae BAK ; Jin Ho KIM ; Jong Guk KIM ; Chang Hong LEE ; Nam Hee WON
Korean Journal of Gastrointestinal Endoscopy 1993;13(2):405-409
Collagenous colitis is an uncommon condition charaeterized clinically by diarrhea and weight loss and histologically by thickening of the subepithelial collagen band with chromic inflammation. Laboratory tests of blood, urine and stool, and colonscopic findings are usually normal. The etiology of collagenous colitis is unknown. We report a case of collagenous colitis improved after treatment with sulfasalazine with review of literatures.
Colitis, Collagenous*
;
Collagen*
;
Diarrhea
;
Inflammation
;
Sulfasalazine
;
Weight Loss
5.Immunohistochemical Analysis of Transforming Growth Factor-beta Expression in Gastric Adenocarcinoma.
Young Hee CHOI ; Seoung Wan CHAE ; Min Chul LEE ; Jung Weon SHIM ; Hye Kyung AHN ; Hye Rim PARK ; Gu KANG ; Hyung Sik SHIN ; Young Euy PARK
Korean Journal of Pathology 1994;28(3):272-281
Thirty cases of gastric adenocarcinoma were examined immunohistochemically for expression of transforming growth factor-beta(TGF-beta) in order to analyze significant correlation with clinical stage and pathologic grade of gastric adenocarcinoma. Specific immunostaining was clearly detected in the cytoplasm of the neoplastic cells. The TGF-,6 expression in the gastric adenocarcinoma is closely related to the depth of invasion, the degree of invasiveness and the presence of metastasis. Thus, we observed the stronger immunohistochemical. expression of TGF-beta in the deeper portion of invasion and in the invasive gastric adenocarcinomas with the lymph nodal metastasis than in the superficial portion of invasion and in those without the lymph nodal metastasis. There results suggest that the transforming growth factors expression in carcinoma cells may play an important role in the carcinomatous invasion resulting in metastasis.
Adenocarcinoma
;
Neoplasm Metastasis
6.Experimental study of survival of arterialized venous flap.
Hyun Soo KIM ; Bom Joon HA ; Joon Young CHOI ; Sang Eun KIM ; Jae Jung KIM ; Weon Jin PARK ; Jae Seung LEE ; Myoung Soo SHIN ; In Chul SONG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(6):978-987
To increase the survival area of the venous flap, we studied the arterialized venous flap in a rabbit ear model. The ears of 12 New Zealand white rabbits(n=24) were randomized into three groups, group A receiving arterio-venous anastomosis 14 days before the arterialized venous flap elevation; group B receiving bipedicled flap elevation 14 days before arterialized venous flap elevation; group C receiving no pretreatment before the arterialized venous flap elevation. Tc -pertechnetate scan was performed on all groups immediately after the arterialized venous flap elevation to evaluate the blood flow of the flap. The survival area of the flap was measured 14 days after the arterialized venous flap elevation. Average ratio of survival area was 92% in Group A, 88% in group B, which were comparatively higher than the 12% in group C. The entire flap was visualized in groups A and B on scan images, however, only the proximal area of the anterior and posterior marginal vein was visualized in group C. Flap survival pattern was similar to that of the scan image and the slope of time-activity curve of groups A and B was much steeper than that of group C. High survival rate of group A, which received the arterio-venous anastomosis as a pretreatment, may be due to the decrease of resistance of outflow during the 14 days. Anticipated mechanisms involved are, valve insufficiency due to high pressure arterial inflow, development of vascular collaterals in the flap, and opening of arteriovenous(A-V) shunt. Bipedicled flap elevation as a pretreatment may not effect on valves, however, may impair the sympathetic nerve and cause ischmic stimuli which in turn may develop vascular collaterals and make an opening of the A-V shunt.
Ear
;
New Zealand
;
Survival Rate
;
Veins
7.The distribution of C-shaped canal system in Korean population with CT image.
Rok Weon JUN ; Kyung Hoe HUH ; Won Jin YI ; Min Suk HEO ; Sam Sun LEE ; Soon Chul CHOI
Korean Journal of Oral and Maxillofacial Radiology 2009;39(2):75-79
PURPOSE : To investigate the incidence and prevalence of C-shaped root canal using computed tomographic images of head and neck in Korean population. MATERIALS AND METHODS : Regardless of each examination purpose, randomly selected 268 examples which have serial axial computed tomographic images with 8 normal molars in maxilla and mandible were selected and investigated. Defined C-shaped root canal and we could get 82 proper image examples in view of this definition. These were detected and investigated of incidence and prevalence of C-shaped root canal. RESULTS : C-shaped root canals were found in 82 examples among 268 (30.6%) and 147 teeth. They were only found on molar area, and the highest incidence was 37.41% of left mandibular second molars, and the lowest was 2.04% of right maxillary second molars. On prevalence of tooth position, mandibular second molar was the highest, 65% of C-shaped root canal teeth and maxillary second molar was 6% the lowest. CONCLUSION : 31% of randomly selected CT images no considering check-up reason have C-shaped root canals. The C-shaped root canals of mandibular second molar are found most frequently and they are also detectable on maxilla. On Korean population, C-shaped root canals are one of conditions that have to concern with dental treatment for it appears at a high prevalence relatively.
Dental Pulp Cavity
;
Head
;
Incidence
;
Mandible
;
Maxilla
;
Molar
;
Neck
;
Prevalence
;
Tooth
8.Clinicopathological Analysis of Solid Pseudopapillary Tumor (SPT) of the Pancreas.
Jun Chul CHUNG ; Seong Ho CHOI ; Kee Taek JANG ; Weon Young CHANG ; Sung Ho JO ; Jin Seok HEO ; Dong Wook CHOI ; Yong Il KIM
Journal of the Korean Surgical Society 2006;70(5):385-389
PURPOSE: Solid pseudopapillary tumor (SPT) of the pancreas is a rare benign or low-grade pancreatic neoplasm with distinct clinicopathologic features. The purpose of this study was to evaluate the clinical presentation of SPT and to examine the etiology of this tumor by performing immunohistochemical staining. METHODS: From October 1994 to March 2005, 35 cases of SPT who underwent operations were retrospectively reviewed. The clinicopathologic findings and late results of treatment were studied in 7 cases of borderline malignant SPT and in 28 cases of the benign SPT. Immunohistochemical staining was performed for alpha1-antitrypsin, alpha1-antichymotrypsin, neuron specific enolase, chromogranin, synaptophysin, vimentin and cytokeratin. RESULTS: The mean age of the patients was 31.8 years. SPT's were more common in women (77.1%) and the tumors were usually located in the body and the tail of the pancreas (68.6%). There were statistically significant differences in the men (P=0.016), for the masses with calcification (P=0.029), and for the solid masses (P=0.018) between the malignant SPT (including the borderline malignant SPT) and the benign SPT (P=0.014). The SPTs stained positive for alpha1-antitrypsin, neuron specific enolase, and vimentin in all cases, and they were alpha1-antichymotrypsin positive in 94.1% (16/17), chromogranin positive in 18.8% (3/16), synaptophysin positive in 12.5% (2/16), and cytokeratin positive in 18.2% (2/11). All 35 patients underwent curative resection and they are all alive without any evidence of recurrence at a mean follow-up of 44.2 months. CONCLUSION: SPT is a rare tumor that behaves less aggressively than other pancreatic tumors, and surgical resection can result in cure. This tumor thought to originate from a stem cell capable of differentiating into endocrine cells or exocrine cells.
Endocrine Cells
;
Female
;
Follow-Up Studies
;
Humans
;
Keratins
;
Male
;
Pancreas*
;
Pancreatic Neoplasms
;
Phosphopyruvate Hydratase
;
Recurrence
;
Retrospective Studies
;
Stem Cells
;
Synaptophysin
;
Vimentin
9.Patient Characteristics in Cases of Misdiagnosed Delirium upon Psychiatric Consultation in a University Hospital: A Pilot Study.
Jung Won CHOI ; Hanson PARK ; Jae Hong RYOO ; Kyu Wol YUN ; Young Chul KIM ; Weon Jeong LIM ; Eui Jung KIM ; Soo In KIM
Journal of Korean Neuropsychiatric Association 2010;49(4):383-387
OBJECTIVES: The misdiagnosis of delirium may result in a delay of correct diagnosis and appropriate treatment of the delirium. Additionally, aggravation of physical illnesses can occur. The objective of this study was to investigate patient characteristics in cases of misdiagnosed delirium upon psychiatric consultation in a university hospital. METHODS: Subjects included patients with delirium among all who we had consulted over a 12 week span. Psychiatric diagnosis was made by two well-trained psychiatrists by means of the DSM-IV-TR. Cognitive function, level of delirium, and physical function were evaluated by the Korean version of Mini Mental Status Examination (MMSE-K), the Delirium Rating Scale-Revised-98 (DRS-R-98), the Clinical Global Impression-Severity (CGI-S), the Eastern Cooperative Oncology Group Performance Status (ECOG-PS), and the Global Assessment of Functioning Scale (GAF). In addition, we collected socio-demographic information, date of admission and consultation, present causes of consultation, and speculated psychiatric diagnoses made by referring physicians. RESULTS: Among 45 subjects with delirium, only 28 patients (62%) were diagnosed with delirium by referring physicians at the time of consultation. The remaining 17 patients (38%) had been diagnosed with other illnesses. The group of misdiagnosed patients tended to have a longer duration of formal education than those that had been correctly diagnosed. CONCLUSION: Early diagnosis and intervention of delirium can minimize subsequent problems related to delayed diagnosis. Therefore, it is vital to identify the factors related to misdiagnoses by referring physicians. This study showed that a longer duration of formal education is a contributing factor for the misdiagnosis of delirium. Longer education may cover up the typical symptoms of delirium. This can keep referring physicians from making a correct diagnosis. This study was a pilot study investigating diagnostic accuracy of delirium by referring physicians. Additional, well-controlled studies are warranted.
Delayed Diagnosis
;
Delirium
;
Diagnostic Errors
;
Early Diagnosis
;
Humans
;
Mental Disorders
;
Pilot Projects
;
Psychiatry
10.Expression of CD43 in Colorectal Adenocarcinom.
Kyeong Cheon JUNG ; Youngmee BAE ; Hyekyung AHN ; Hye Eun KIM ; Myung Chul JANG ; Hye Rin ROH ; Gi Bong CHAE ; Won Jin CHOI ; Woo Jin KIM ; Weon Seo PARK
Korean Journal of Pathology 2004;38(1):8-14
BACKGROUND: CD43 is a sialoglycoprotein that is highly expressed on most leukocytes, except on B lymphocytes and dendritic cells. CD43 has been reported to be involved in the adhesion and apoptosis of lymphocytes. Although the aberrant expression of CD43 antigen in non-lymphoid tissues has been reported, the expression of the CD43 antigen in gastrointestinal malignancies is not well studied. Here, we studied the expression of CD43 in colon adenocarcinoma using the anti-CD43 monoclonal antibody developed in our laboratory. METHODS: Thirty patients who had undergone surgical resection for colorectal carcinoma were recruited. The expression of CD43 molecule was determined by analyzing the formalin-fixed, paraffin-embedded specimens immunohistochemically using our newly developed anti-CD43 mAb (K06). The results obtained by the immunohistochemical analysis correlated to the clinicopatho-logical parameters. RESULTS: The expression of CD43 were found in 20 out of 30 colorectal carcinoma cases. The expression of CD43 antigen is higher in well differentiated adenocarcinomas than poorly or moderately differentiated adenocarcinomas. CONCLUSIONS: The new anti-CD43 mAb might be helpful for the detection of the expression of CD43 on colorectal carcinoma cells. Further studies are required to assess the relationship between the CD43 expression and the colorectal carcinogenesis.
Adenocarcinoma
;
Antigens, CD43
;
Apoptosis
;
B-Lymphocytes
;
Carcinogenesis
;
Colon
;
Colorectal Neoplasms
;
Dendritic Cells
;
Humans
;
Immunohistochemistry
;
Leukocytes
;
Lymphocytes