1.A Case of Intramedullary Myelitis due to Bacterial Meningitis with Cervical Epidural Abscess.
Go Un YUN ; Jung Hwa SEO ; Jong Kuk KIM ; Kyung Won PARK ; Sang Ho KIM
Journal of the Korean Geriatrics Society 2005;9(1):62-65
Intramedullary myelitis due to bacterial meningitis associated with cervical epidural abscess is very rare. Its cause and clinical features are non-specific, therefore exact diagnosis is often missed or mistaken for other disease and immediate treatment may be delayed. We report a case of intramedullary myelitis due to epidural abscess presented with prominent symptoms of meningitis and manifestations of acute cerebrovacular accident. A 69 -year-old man was admitted due to right hemicranial headache with pain on right posterior neck and febrile sensation. At first, the patient's headache was improved by conservative therapy. Three weeks later, the patient showed abrupt right hemiparesis (MRC grade 2/5) with drowsy mentality. The CSF findings of the patient were compatible with acute bacterial meningitis. Cervical spine MRI showed cervical epidural abscess and extensive intramedullary myelitis from cervical to lumbar spinal cord. After antibiotic therapy, mentality of the patient became to be alert and right hemiparesis was improved to MRC grade 4/5. Follow up cervical spine MRI after several weeks represented that the lesions of cervical epidural abscess and intramedullary myelitis were significantly diminished.
Diagnosis
;
Epidural Abscess*
;
Follow-Up Studies
;
Headache
;
Humans
;
Magnetic Resonance Imaging
;
Meningitis
;
Meningitis, Bacterial*
;
Myelitis*
;
Neck
;
Paresis
;
Sensation
;
Spinal Cord
;
Spine
2.Acute Necrotizing Esophagitis: An Autopsy Case Report and Literature Review.
Minsung CHOI ; Go Un JUNG ; Yun Teak SHIM ; Hyung Nam KOO ; Byung Ha CHOI ; Nak Eun CHUNG ; Young Shik CHOI ; Yi Suk KIM
Korean Journal of Legal Medicine 2014;38(1):30-33
Acute necrotizing esophagitis (AEN), also called "black esophagus," is a rare disorder with an unknown pathogenesis. Endoscopic findings generally show black pigmentation throughout the esophagus. This case also offered rare views of the gross anatomy of this disorder. Histological examination revealed that the mucosal and submucosal layers of the esophagus were involved in the severe necrotizing inflammation. The chief manifestation of this disease is hematemesis from hemorrhage of the upper gastrointestinal tract with a typically multifactorial etiology. AEN is also characterized by a clear boundary at the gastroesophageal junction where the necrosis stops. In this study, we report an autopsy case of a 61-year-old man with necrotizing inflammation throughout the esophagus and esophageal necrosis from the laryngopharynx to the gastroesophageal junction. The patient was a disabled person with a history of alcohol abuse who was also diagnosed with mild coronary arteriosclerosis and fatty liver on the basis of the underlying diseases. In this case, the main etiology for poor perfusion from the distal esophageal area was likely underlying illness, history of alcoholism, and malnutrition.
Alcoholism
;
Autopsy*
;
Coronary Artery Disease
;
Disabled Persons
;
Esophagitis*
;
Esophagogastric Junction
;
Esophagus
;
Fatty Liver
;
Hematemesis
;
Hemorrhage
;
Humans
;
Hypopharynx
;
Inflammation
;
Malnutrition
;
Middle Aged
;
Necrosis
;
Perfusion
;
Pigmentation
;
Upper Gastrointestinal Tract
3.A Case of Neuro-Behcet's Disease Presenting as Anterograde Amnesia.
Jung Hwa SEO ; Go Un YUN ; Min Jeong PARK ; Kyung Won PARK ; Jae Woo KIM
Journal of the Korean Neurological Association 2006;24(4):367-371
Anterograde amnesia in Behcet's disease is a rare occurrence. A 50-year-old man presented with anterograde amnesia. He had been suffering multiple oral aphthous ulcers and genital ulcers with erythema nodosum. A neurological examination revealed prominent anterograde memory disturbance. Brain MRI revealed high signal intensity lesions involving the anterior thalamus, posterior part of the basal ganglia and the mesial temporal lobe. We report a rare case of Behcet's disease manifesting severe anterograde amnesia resulting from thalamic and mesial temporal lesions.
Amnesia, Anterograde*
;
Basal Ganglia
;
Brain
;
Erythema Nodosum
;
Humans
;
Magnetic Resonance Imaging
;
Memory
;
Middle Aged
;
Neurologic Examination
;
Stomatitis, Aphthous
;
Temporal Lobe
;
Thalamus
;
Ulcer
4.The Difference of Platelet Aggregability in Patients with Cerebral Infarction accordigng to Type of Anti-platelet Agents.
Sang Myung CHEON ; Go Un YUN ; Kyung Won PARK ; Sang Ho KIM ; Jae Woo KIM ; Hyun Chul SHIN ; Jae Kwan CHA
Journal of the Korean Neurological Association 2004;22(1):11-15
BACKGROUND: Platelets play a key role in many occlusive vascular disorders and anti-platelet agents are the most important therapeutic strategy in preventing the recurrence of cerebral infarction. In order to know the platelet aggregability according to the strategy of anti-platelet agents, we measured platelet aggregability in patients who were taking anti-platelet agents for cerebral infarction. METHODS: Platelet aggregability in response to adenosine diphosphate (ADP) or collagen was measured in whole blood samples from 175 patients (48 females and 137 males). It was analyzed according to the type of cerebral infarction, vascular risk factors, and each anti-platelet agent. RESULTS: Platelet aggregability induced by ADP or collagen was significantly increased in patients with large artery atherosclerotic infarction compared to those with small vessel disease. Among anti-platelet regimens, combined therapy with aspirin and clopidogrel decreased platelet aggregability most effectively. CONCLUSIONS: These findings suggest that anti-platelet treatment should be tailored to the vascular status of each patient, and that combination therapy with aspirin and clopidogrel can effectively modulate platelet aggregability in preventing the recurrence of cerebral infarction.
Adenosine Diphosphate
;
Arteries
;
Aspirin
;
Atherosclerosis
;
Blood Platelets*
;
Cerebral Arterial Diseases
;
Cerebral Infarction*
;
Collagen
;
Female
;
Humans
;
Infarction
;
Recurrence
;
Risk Factors
5.Relationship between handwashing practices and infectious diseases in Korean students.
Dong Fang ZHANG ; Moo Sik LEE ; Sujin HONG ; Nam Young YANG ; Hae Jung HWANG ; Byung Hee KIM ; Hyun Soo KIM ; Eun Young KIM ; Yun Jin PARK ; Go Un LIM ; Young Tek KIM
Journal of Agricultural Medicine & Community Health 2015;40(4):206-220
OBJECTIVES: The purpose of this study was to investigate the association between practice and infectious diseases in elementary, middle and high school students. METHODS: In 16 metropolitan cities and province of the Korea, the students who from fourth grade of elementary school to third grade of high school were surveyed by personal interviews and an web-based online survey from 5 to 25 September, 2014. We analyzed data with chi-square test and logistic regression analysis. RESULTS: Common cold, diarrhea, and eye infections were more prevalent among students in higher grade than lower grade. In particular, common cold was more prevalent among girls than boys, using hand sanitizer than washing with soaps, and students who wash the dorsal side of hand than not wash the dorsal side of hand. CONCLUSIONS: Higher-grade students showed low status of hand washing practice. Hand washing was determined as the fact which influences to increase the prevention of communicable disease such as common cold. Considering the fact that youth groups have higher risk of being infected due to their group life, schools are recommended to provide adequate educations regarding proper hand washing practice with soap.
Adolescent
;
Common Cold
;
Communicable Diseases*
;
Diarrhea
;
Eye Infections
;
Female
;
Hand
;
Hand Disinfection*
;
Humans
;
Korea
;
Logistic Models
;
Soaps
6.Behavioral Changes as the Earliest Clinical Manifestation of Progressive Supranuclear Palsy.
Hyun Jeong HAN ; Hyeyun KIM ; Jong Ho PARK ; Hyung Woo SHIN ; Go Un KIM ; Dong Sun KIM ; Eun Ja LEE ; Hwa Eun OH ; Seung Hye PARK ; Yun Jung KIM
Journal of Clinical Neurology 2010;6(3):148-151
BACKGROUND: The clinical and pathological heterogeneity of progressive supranuclear palsy (PSP) is well established. Even with a well-defined clinical phenotype and a thorough laboratory workup, PSP can be misdiagnosed, especially in its early stages. CASE REPORT: A 52-year-old woman, who we initially diagnosed with a behavioral variant of frontotemporal dementia developed parkinsonian features, which then progressed to gait instability and gaze abnormality. CONCLUSIONS: We report herein a pathologically confirmed case of PSP presenting with behavioral changes including agitation and irritability, which eventually led to the cardinal symptoms of progressive supranuclear palsy.
Dihydroergotamine
;
Female
;
Frontotemporal Dementia
;
Gait
;
Humans
;
Middle Aged
;
Parkinsonian Disorders
;
Phenotype
;
Population Characteristics
;
Supranuclear Palsy, Progressive
7.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.
8.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.
9.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.