1.SPARC Expression in Thyroid Follicular Adenomas and Carcinomas.
Chung Yeul KIM ; Seong Jin CHO ; Min Kyung KIM ; Yang Seok CHAE
Korean Journal of Pathology 2000;34(12):1016-1021
SPARC, secreted protein acidic and rich in cysteine, is a extracellular matrix-associated protein implicated in the modulation of cell adhesion, migration, cell cycle regulation, and angiogenesis. SPARC is expressed in fibrocytes and endothelial cells involved in tissue repair and invasive malignant tumors in the gastrointestinal tract, breast, lung, kidney, adrenal cortex, ovary, and brain. This study was aimed to characterize the different expression of SPARC in the thyroid follicular adenomas and follicular carcinomas. Immunohistochemical staining was performed in paraffin-embedded tissues of 25 follicular adenomas and 15 follicular carcinomas of the thyroid gland. Immunohistochemically, SPARC was not expressed in the 19 follicular adenoma and 2 follicular carcinoma but highly expressed in the 6 follicular adenoma and 13 follicular carcinoma. These findings suggest that SPARC is a potential diagnostic marker of follicular carcinoma and is helpful to distinguish follicular carcinoma from follicular adenoma without vascular or capsular invasion.
Adenoma*
;
Adrenal Cortex
;
Brain
;
Breast
;
Cell Adhesion
;
Cell Movement
;
Cysteine
;
Endothelial Cells
;
Female
;
Gastrointestinal Tract
;
Kidney
;
Lung
;
Ovary
;
Thyroid Gland*
2.Fit analysis of CAD-CAM custom abutment using micro-CT.
Gwang Seok MIN ; Chae Heon CHUNG ; Hee Jung KIM
The Journal of Korean Academy of Prosthodontics 2016;54(4):370-378
PURPOSE: The purpose of this study was to investigate screw joint stability and sagittal fit between internal connection implant fixtures of two different manufacturers and customized abutments. MATERIALS AND METHODS: Internal connection implant systems from two different manufacturers (Biomet 3i system, Astra Tech system) were selected for this study (n=24 for each implant system, total n=48). For 3i implant system, half of the implants were connected with Ti ready-made abutments and the other half implants were connected with Ti CAD-CAM custom ones of domestic-make (Myplant, Raphabio Co., Seoul, Korea) and were classified into Group 1 and Group 2 respectively. Astra implants were divided into Group 3 and Group 4 in the same way. Micro-CT sagittal imaging was performed for fit analysis of interfaces and preloading reverse torque values (RTV) were measured. RESULTS: In the contact length of fixture-abutment interface, there were no significant differences not only between Group 1 and Group 2 but also between Group 3 and Group 4 (Mann-Whitney test, P>.05). However, Group 2 and Group 4 showed higher contact length significantly than Group 1 and Group 3 in abutmentscrew interface as well as fixture-screw one (Mann-Whitney test, P<.05). In addition, RTV was lower in CAD-CAM custom abutments compared to ready-made ones (Student t-test, P<.05). CONCLUSION: It is considered that domestically manufactured CAD-CAM custom abutments have similar fit at the fixture abutment interface and it could be used clinically. However, RTV of CAD-CAM custom abutments should be improved for the increase of clinical application.
Computer-Aided Design*
;
Joints
;
Seoul
;
Torque
3.Extragastrointestinal stromal tumor presenting as a scrotal mass: an unusual case.
Seok-Ho KANG ; Myung-Joon KIM ; Min-Gu PARK ; Hong-Seok PARK ; Du-Geon MOON ; Deuk-Jae SUNG ; Hyun-Chul KIM ; Yang-Seok CHAE ; Jun CHEON ; Je-Jong KIM
Asian Journal of Andrology 2007;9(2):275-279
We describe an unusual case of extragastrointestinal stromal tumor (EGIST) presenting as a scrotal mass. A 71-year-old man presented with a gradually enlarging scrotal mass with a 20-year duration. Physical examination revealed a huge (as large as volleyball), round, nontender mass occupying the whole scrotum, which was resected completely. Clinical and radiological findings did not comply with any other primary site disease. Under histological examination, the tumor showed a spindle cell pattern with low cellularity, absence of necrotic and mitotic features. immunohistochemical analysis revealed the tumor reactive for CD117 and CD34, while negative for smooth muscle actin, desmin and S-100 protein. To our knowledge, this is the first reported case of an EGIST involving the scrotum.
Aged
;
Antigens, CD34
;
analysis
;
Gastrointestinal Stromal Tumors
;
diagnosis
;
Humans
;
Immunohistochemistry
;
Male
;
Proto-Oncogene Proteins c-kit
;
analysis
;
Scrotum
;
pathology
;
Sex Cord-Gonadal Stromal Tumors
;
chemistry
;
pathology
4.Massive Subcutaneous Emphysema and Hypercarbia during Endoscopic Thyroidectomy: A case report.
Woo Kyoung LEE ; Young Soon CHOI ; Young Keun CHAE ; Yong Ho KIM ; Yoon Seok CHAE ; Jong Hoon LEE ; Hyun Min LEE
Korean Journal of Anesthesiology 2004;47(6):898-901
Endoscopic thyroidectomy is being performed increasingly, because it is less invasive and more cosmetically advantageous, and thus improves the postoperative quality of life. However, the technical aspects of this procedure can increase the risk of certain complications, which include subcutaneous emphysema, hypercarbia, pneumothorax, and pneumomediastinum. This report describes the case of a 37-year-old female patient who had subcutaneous emphysema and hypercarbia due to increased carbon dioxide absorption during endoscopic thyroidectomy. After increasing minute ventilation, paying cautious attention to signs of other complications, the operation proceeded and blood gas findings improved. The operation ended successfully and she showed no further problems.
Absorption
;
Adult
;
Carbon Dioxide
;
Female
;
Humans
;
Mediastinal Emphysema
;
Pneumothorax
;
Quality of Life
;
Subcutaneous Emphysema*
;
Thyroidectomy*
;
Ventilation
5.A Case of Phaeohyphomycosis Caused by Exophiala lecanii-corni.
Kyou Chae LEE ; Min Ji KIM ; Soo Yuhl CHAE ; Hae Sook LEE ; Yong Hyun JANG ; Seok Jong LEE ; Do Won KIM ; Weon Ju LEE
Annals of Dermatology 2016;28(3):385-387
No abstract available.
Exophiala*
;
Phaeohyphomycosis*
6.Can clinical scoring systems improve the diagnostic accuracy in patients with suspected adult appendicitis and equivocal preoperative computed tomography findings?.
Min Seok CHAE ; Chong Kun HONG ; Young Rock HA ; Minjung Kathy CHAE ; Young Sik KIM ; Tae Yong SHIN ; Jung Hwan AHN
Clinical and Experimental Emergency Medicine 2017;4(4):214-221
OBJECTIVE: Adult appendicitis (AA) with equivocal computed tomography (CT) findings remains a diagnostic challenge for physicians. Herein we evaluated the diagnostic performance of several clinical scoring systems in adult patients with suspected appendicitis and equivocal CT findings. METHODS: We retrospectively evaluated 189 adult patients with equivocal CT findings. Alvarado, Eskelinen, appendicitis inflammatory response, Raja Isteri Pengiran Anak Saleha Appendicitis (RIPASA), and adult appendicitis score (AAS) scores were evaluated, receiver operating characteristic analysis was conducted, and the optimal, low, and high cut-off values were determined for patient classification into three groups: low, intermediate, or high. RESULTS: In total, 61 patients were included in the appendicitis group and 128 in the non-appendicitis group. There were no significant differences between the area under the curve of the clinical scoring systems in the final diagnosis of AA for equivocal appendicitis on CT (Alvarado, 0.698; Eskelinen, 0.710; appendicitis inflammatory response, 0.668; RIPASA, 0.653; AAS, 0.726). A RIPASA score greater than 7.5 had a high positive predictive value (90.9) and an AAS score less than or equal to 5 had a high negative predictive value (91.7) in the diagnosis of AA. CONCLUSION: The accuracy of clinical scoring systems in the diagnosis of AA with equivocal CT findings was moderate. Therefore, a high RIPASA score may assist in the diagnosis of AA in patients with equivocal CT findings, and a low AAS score may be used as a criterion for patient discharge. Most patients presented with intermediate scores. The patients with equivocal CT findings may be considered as a third diagnostic category of AA.
Adult*
;
Appendicitis*
;
Classification
;
Clinical Decision-Making
;
Diagnosis
;
Diagnostic Tests, Routine
;
Humans
;
Multidetector Computed Tomography
;
Patient Discharge
;
Retrospective Studies
;
ROC Curve
;
Skates (Fish)
7.The Common NF-kappaB Essential Modulator (NEMO) Gene Rearrangement in Korean Patients with Incontinentia Pigmenti.
Min Jung SONG ; Jong Hee CHAE ; Eun Ae PARK ; Chang Seok KI
Journal of Korean Medical Science 2010;25(10):1513-1517
Incontinentia pigmenti (IP) is a rare X-linked dominant disorder characterized by highly variable abnormalities of the skin, eyes and central nervous system. A mutation of the nuclear factor-kappa B essential modulator (NEMO) located at Xq28 is believed to play a role in pathogenesis and the mutation occurs mostly in female patients due to fatal consequence of the mutation in males in utero. This study was designed to identify the common NEMO rearrangement in four Korean patients with IP. Deletion of exons 4 to 10 in the NEMO, the most common mutation in IP patients, was detected in all of the patients by the use of long-range PCR analysis. This method enabled us to discriminate between NEMO and pseudogene rearrangements. Furthermore, all of the patients showed skewed XCI patterns, indicating pathogenicity of IP was due to cells carrying the mutant X chromosome. This is the first report of genetically confirmed cases of IP in Korea.
Alleles
;
Asian Continental Ancestry Group/*genetics
;
Chromosomes, Human, X
;
Exons
;
Female
;
Humans
;
I-kappa B Kinase/*genetics
;
Incontinentia Pigmenti/*genetics/pathology
;
Polymerase Chain Reaction
;
Republic of Korea
;
*Sequence Deletion
8.Inflammatory Reponse of the Lung to Hypothermia and Fluid Therapy after Hemorrhagic Shock in Rats.
Won Chae JANG ; Min Sun BEOM ; In Seok JEONG ; Young Ju HONG ; Bong Suk OH
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(12):879-890
BACKGROUND: The dysfunction of multiple organs is found to be caused by reactive oxygen species as a major modulator of microvascular injury after hemorrhagic shock. Hemorrhagic shock, one of many causes inducing acute lung injury, is associated with increase in alveolocapillary permeability and characterized by edema, neutrophil infiltration, and hemorrhage in the interstitial and alveolar space. Aggressive and rapid fluid resuscitation potentially might increased the risk of pulmonary dysfunction by the interstitial edema. Therefore, in order to improve the pulmonary dysfunction induced by hemorrhagic shock, the present study was attempted to investigate how to reduce the inflammatory responses and edema in lung. MATERIAL AND METHOD: Male Sprague-Dawley rats, weight 300 to 350 gm were anesthetized with ketamine (7 mg/kg) intramuscular. Hemorrhagic Shock (HS) was induced by withdrawal of 3 mL/100 g over 10 min. through right jugular vein. Mean arterial pressure was then maintained at 35~40 mmHg by further blood withdrawal. At 60 min. after HS, the shed blood and Ringer's solution or 5% albumin was infused to restore mean carotid arterial pressure over 80 mmHg. Rats were divided into three groups according to rectal temperature level (37 degrees C [normothermia] vs 33degrees C [mild hypothermia]) and resuscitation fluid (lactate Ringer's solution vs 5% albumin solution). Group I consisted of rats with the normothermia and lactate Ringer's solution infusion. Group II consisted of rats with the systemic hypothermia and lactate Ringer's solution infusion. Group III consisted of rats with the systemic hypothermia and 5% albumin solution infusion. Hemodynamic parameters (heart rate, mean carotid arterial pressure), metabolism, and pulmonary tissue damage were observed for 4 hours. RESULT: In all experimental groups including 6 rats in group I, totally 26 rats were alive in 3rd stage. However, bleeding volume of group I in first stage was 3.2+/-0.5 mL/100 g less than those of group II (3.9+/-0.8 mL/100 g) and group III (4.1+/-0.7 mL/100 g). Fluid volume infused in 2nd stage was 28.6+/-6.0 mL (group I), 20.6+/-4.0 mL (group II) and 14.7+/-2.7 mL (group III), retrospectively in which there was statistically a significance between all groups (p <0.05). Plasma potassium level was markedly elevated in comparison with other groups (II and III), whereas glucose level was obviously reduced in 2nd stage of group I. Level of interleukine-8 in group I was obviously higher than that of group II or III (p <0.05). They were 1,834+/-437 pg/mL (group I), 1,006+/-532 pg/mL (group II), and 764+/-302 pg/mL (group III), retrospectively. In histologic score, the score of group III (1.6+/-0.6) was significantly lower than that of group I (2.8+/-1.2)(p <0.05). CONCLUSION: In pressure-controlled hemorrhagic shock model, it is suggested that hypothermia might inhibit the direct damage of ischemic tissue through reduction of basic metabolic rate in shock state compared to normothermia. It seems that hypothermia should be benefit to recovery pulmonary function by reducing replaced fluid volume, inhibiting anti-inflammatory agent (IL-8) and leukocyte infiltration in state of ischemia-reperfusion injury. However, it is considered that other changes in pulmonary damage and inflammatory responses might induce by not only kinds of fluid solutions but also hypothermia, and that the detailed evaluation should be study.
Acute Lung Injury
;
Animals
;
Arterial Pressure
;
Edema
;
Fluid Therapy*
;
Glucose
;
Hemodynamics
;
Hemorrhage
;
Humans
;
Hypothermia*
;
Jugular Veins
;
Ketamine
;
Lactic Acid
;
Leukocytes
;
Lung*
;
Male
;
Metabolism
;
Neutrophil Infiltration
;
Permeability
;
Plasma
;
Potassium
;
Rats*
;
Rats, Sprague-Dawley
;
Reactive Oxygen Species
;
Reperfusion
;
Reperfusion Injury
;
Resuscitation
;
Retrospective Studies
;
Shock
;
Shock, Hemorrhagic*
9.Cerebral Syphilitic Gumma Mimicking a Brain Tumor in the Relapse of Secondary Syphilis in a Human Immunodeficiency Virus-Negative Patient.
Young Kyung YOON ; Min Ja KIM ; Yang Seok CHAE ; Shin Hyuk KANG
Journal of Korean Neurosurgical Society 2013;53(3):197-200
Diagnosis of cerebral syphilitic gumma is frequently determined at the time of surgery, because imaging and laboratory findings demonstrate the elusive results. A 59-year-old woman presenting dysarthria showed a mass on her brain computed tomography. She was first suspected of brain tumor, but histological results from surgical resection revealed cerebral gumma due to neurosyphilis. After operation, she presented fever and rash with an infiltration on a chest X-ray. Histological assessment of skin was consistent with syphilis. Fluorescent treponemal antibody absorbed test IgG in cerebrospinal fluid was positive. She was successfully treated with ceftriaxone for 14 days.
Brain
;
Brain Neoplasms
;
Ceftriaxone
;
Dysarthria
;
Exanthema
;
Female
;
Fever
;
Humans
;
Immunoglobulin G
;
Neurosyphilis
;
Recurrence
;
Skin
;
Syphilis
;
Syphilis, Latent
;
Thorax
10.Disseminated Eczema Herpeticum Transmitted by Self-inoculation.
Chan Seok OH ; Chung Eui YOU ; Kyung Ok CHAE ; Young Min PARK ; Sang Hyun CHO
Korean Journal of Dermatology 2002;40(12):1568-1570
Eczema herpeticum is a widespread Herpes simplex virus(HSV) infection, which usually develops in patients with atopic dermatitis. Because pruritus in patients with atopic dermatits leads them to scratch their bodies, it causes the dissemination of Herpes simplex virus. A delay in diagnosing this condition may result in intense and rapid spread of the cutaneous lesions. We report a patient who underwent a prolonged friction with a rough nylon towel while bathing and developed eczema herpeticum. We suspect a bath with a rough nylon towel as a possible route of spread.
Baths
;
Dermatitis, Atopic
;
Eczema*
;
Friction
;
Herpes Simplex
;
Humans
;
Kaposi Varicelliform Eruption*
;
Nylons
;
Pruritus
;
Simplexvirus