1.Acute Motor Axonal Neuropathy Accompanied with Delayed Facial Diplegia
Byeol-A YOON ; Hyein CHUNG ; Ja Hyeon CHO ; Jong Kuk KIM
Korean Journal of Neuromuscular Disorders 2021;13(2):40-43
Facial nerve palsy is one of major accompanying features in Guillain-Barré syndrome (GBS). In most of the cases, facial weakness develops simultaneously with other symptoms such as motor weakness, sensory change and other cranial neuropathies. However, facial palsy also occurs after the nadir of neurological deficits or even after the beginning of limb weakness improvement, called delayed facial palsy (DFP). DFP has been reported in Miller Fisher syndrome, but it rarely found from the acute motor axonal neuropathy subtype of GBS. Recently, we experienced a patient who diagnosed acute motor axonal neuropathy accompanying with delayed facial diplegia.
2.Association between green tea consumption and metabolic syndrome among Korean adults: results from the Health Examinees study
Hyeonjin CHO ; Sunwoo HAN ; Jiwon JEONG ; Hyein JUNG ; Sangah SHIN
Journal of Nutrition and Health 2023;56(1):70-85
Purpose:
Several studies have been conducted on the relationship between green tea intake and metabolic syndrome. However, compared to the studies carried out internationally, there is inadequate research on the relationship between domestic green tea consumption and metabolic syndrome. Therefore, in this study, the general characteristics of Koreans according to their green tea intake and its association with metabolic syndrome were examined.
Methods:
A total of 44,611 subjects were included in the study, and analysis was carried out using data from the Korean Genome and Epidemiology Study (KoGES) for Korean adults aged 40 or older. Green tea consumption was estimated using 106 verified food frequency questionnaires (FFQ). Metabolic syndrome was defined using the National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III) parameters. After adjusting for confounding variables by performing a Cox regression analysis, the association between green tea consumption and metabolic syndrome was confirmed through the hazard ratio (HR) and 95% confidence interval (CI).
Results:
The average incidence of metabolic syndrome was 18.7% (20.8% in men and 17.8% in women). Compared to those who drank almost no green tea, in subject groups consuming more than one cup of green tea a day, the metabolic syndrome incidence was significantly reduced by 15% (HR, 0.85; 95% CI, 0.74–0.96; p trend = 0.0200) among men and by 19% (HR, 0.81; 95% CI, 0.73–0.90; p trend < 0.0001) among women. In addition, the biomarkers related to metabolic syndrome also tended to decrease overall in these groups.
Conclusion
This study concluded that as the intake of green tea increased, the incidence of metabolic syndrome and related indicators decreased. Therefore, green tea intake is believed to have a positive effect on the prevention and management of the metabolic syndrome.
3.Lymphoepithelioma-like Carcinoma of the Renal Pelvis: A Case Report and Review of the Literature.
Hyein AHN ; Jongmin SIM ; Hyunsung KIM ; Kijong YI ; Hulin HAN ; Yumin CHUNG ; Abdul REHMAN ; Seung Sam PAIK
Korean Journal of Pathology 2014;48(6):458-461
No abstract available.
Kidney Pelvis*
4.Osteosarcomatous Differentiation in Rebiopsy Specimens of Pulmonary Adenocarcinoma with EGFR-TKI Resistance
Hyein AHN ; Hyun Jung KWON ; Eunhyang PARK ; Hyojin KIM ; Jin Haeng CHUNG
Journal of Pathology and Translational Medicine 2018;52(2):130-132
No abstract available.
Adenocarcinoma
5.A Case Report of Male Occult Breast Cancer Manifested as Superior Vena Cava Syndrome
Hyein KANG ; Su Min HA ; Hye Shin AHN ; Hee Sung KIM ; Hee Jun KIM
Journal of the Korean Radiological Society 2018;79(4):204-207
Occult breast cancer (OBC) is an asymptomatic condition. We report a case of OBC in a 72-year-old male patient who presented with severe dyspnea and upper extremity swelling. Computed tomography scan showed multiple lymph node enlargements in the supraclavicular and infraclavicular areas, and ultrasound scan showed multiple axillary lymph node enlargements. Based on the radiological findings, clinicians suspected lymphoma or disseminated metastasis from unknown primary malignancies. However, the axillary biopsy specimen revealed invasive breast cancer with hormonal receptor positivity.
6.Abdominal Digital Radiography with a Novel Post-Processing Technique: Phantom and Patient Studies
Hyein KANG ; Eun Sun LEE ; Hyun Jeong PARK ; Byung Kwan PARK ; Jae Yong PARK ; Suk-Won SUH
Journal of the Korean Radiological Society 2020;81(4):920-932
Purpose:
The aim of this study was to evaluate the diagnostic image quality of low dose abdominal digital radiography processed with a new post-processing technique.
Materials and Methods:
Abdominal radiographs from phantom pilot studies were post-processed by the novel and conventional post-processing methods of our institution; the proper dose for the subsequent patient study of 49 subjects was determined by comparing image quality of the two preceding studies. Two radiographs of each patient were taken using the conventional and derived dose protocols with the proposed post-processing method. The image details and quality were evaluated by two radiologists.
Results:
The radiation dose for the patient study was derived to be half of the conventional method. Overall half-dose image quality with the proposed method was significantly higher than that of the conventional method (p < 0.05) with moderate inter-rater agreement (κ = 0.60, 0.47).
Conclusion
By applying the new post-processing technique, half-dose abdominal digital radiography can demonstrate feasible image quality compared to the full-dose images.
7.The Role of a Preoperative CT for the Accurate Diagnosis of a Lingual Osteoma: A Case Report
Hyein KANG ; Mi Sun CHUNG ; Jun Soo BYUN ; Eun Jung LEE ; Hee Sung KIM ; Sei Young LEE
Journal of the Korean Radiological Society 2019;80(5):953-957
An osteoma of the tongue is a rare benign tumor, typically located in the posterior one-third of the tongue. Several etiological hypotheses have been proposed in previous literature reviews. Herein, we report the case of a lingual osteoma in a 39-year-old woman, who complained of a lump in the throat. The lesion presented as a homogeneously hyperdense submucosal mass without any enhancement in the base of the tongue on CT, consistent with previous image findings of lingual osteoma. After surgical resection, the mass was pathologically proven to be a lingual osteoma. The patient no longer complained of the sensation of a lump. Typical CT findings of a lingual osteoma—a well-circumscribed hyperdense submucosal mass seen around the foramen cecum—could be helpful in the diagnosis of lingual osteoma and the prevention of further unnecessary work-up.
8.High MicroRNA-370 Expression Correlates with Tumor Progression and Poor Prognosis in Breast Cancer.
Jongmin SIM ; Hyein AHN ; Rehman ABDUL ; Hyunsung KIM ; Ki Jong YI ; Yu Min CHUNG ; Min Sung CHUNG ; Seung Sam PAIK ; Young Soo SONG ; Kiseok JANG
Journal of Breast Cancer 2015;18(4):323-328
PURPOSE: Deregulation of microRNA-370 (miR-370) has been reported in various cancers, in which it can act as either an oncogene or a tumor suppressor gene. However, the clinicopathologic significance of miR-370 expression in breast cancer has not been studied. METHODS: The expression of miR-370 was determined with quantitative real-time polymerase chain reaction in 60 formalin-fixed, paraffin-embedded primary breast cancer tissues. Additionally, the protein expression levels of previously known targets of miR-370, such as FOXM1, FOXO1, and FOXO3a, were detected using immunohistochemistry. Finally, we analyzed its correlation with target protein expression, clinicopathologic features, and clinical outcome. RESULTS: High levels of miR-370 expression correlated with lymph node metastasis (p=0.009), advanced stage (p=0.002), and frequent perineural invasion (p=0.042). Moreover, patients with high miR-370 expression had poor disease-free survival compared with the low-expression group. However, no correlation was observed between miR-370 and its target protein expression. CONCLUSION: Our results indicate that upregulation of miR-370 in breast cancer is correlated with breast cancer progression and that it might be a potential biomarker for predicting clinical outcomes.
Breast Neoplasms*
;
Breast*
;
Disease-Free Survival
;
Genes, Tumor Suppressor
;
Humans
;
Immunohistochemistry
;
Lymph Nodes
;
Neoplasm Metastasis
;
Oncogenes
;
Prognosis*
;
Real-Time Polymerase Chain Reaction
;
Up-Regulation
9.Clinicopathological Significance of Dual-Specificity Protein Phosphatase 4 Expression in Invasive Ductal Carcinoma of the Breast.
Hyunsung KIM ; Se Min JANG ; Hyein AHN ; Jongmin SIM ; Kijong YI ; Yumin CHUNG ; Hulin HAN ; Abdul REHMAN ; Min Sung CHUNG ; Kiseok JANG ; Seung Sam PAIK
Journal of Breast Cancer 2015;18(1):1-7
PURPOSE: Dual-specificity protein phosphatase 4 (DUSP4), also known as mitogen-activated protein kinase phosphatase (MKP) 2 is a member of the inducible nuclear MKP group. The role of DUSP4 in cancer development and progression appears to vary with the type of malignancy. The purpose of this study was to investigate DUSP4 expression in a case series of invasive ductal carcinoma of the breast. METHODS: We constructed tissue microarrays consisting of 16, 14, 47, and 266 cases of normal breast tissue, usual ductal hyperplasia, ductal carcinoma in situ, and invasive ductal carcinoma, respectively. DUSP4 expression was investigated by immunohistochemistry. RESULTS: Cytoplasmic DUSP4 expression was observed. DUSP4 was more frequently expressed in malignant than in benign cases (p=0.024). The mean DUSP4 expression score was significantly higher in malignant tumors than in benign lesions (p=0.019). DUSP4 expression was significantly correlated with a larger tumor size (>2 cm, p=0.015). There was no significant correlation between overall survival or disease-free survival and DUSP4 expression in all 266 patients. We evaluated the impact of DUSP4 expression on the survival of 120 patients with T1-stage tumors. Interestingly, Kaplan-Meier survival curves revealed that DUSP4 expression had a significant effect on both overall patient survival (p=0.034, log-rank test) and disease-free survival (p=0.045, log-rank test). In early T-stage breast cancer, DUSP4 expression was associated with a worse prognosis. CONCLUSION: DUSP4 is frequently upregulated in breast malignancy, and may play an important role in cancer development and progression. In addition, it may be a marker of adverse prognosis, especially in patients with early T1-stage cancer.
Breast Neoplasms
;
Breast*
;
Carcinoma, Ductal*
;
Carcinoma, Intraductal, Noninfiltrating
;
Cytoplasm
;
Disease-Free Survival
;
Humans
;
Hyperplasia
;
Immunohistochemistry
;
Kaplan-Meier Estimate
;
Prognosis
;
Protein Kinases
10.Clinicopathologic Correlations of E-cadherin and Prrx-1 Expression Loss in Hepatocellular Carcinoma.
Kijong YI ; Hyunsung KIM ; Yumin CHUNG ; Hyein AHN ; Jongmin SIM ; Young Chan WI ; Ju Yeon PYO ; Young Soo SONG ; Seung Sam PAIK ; Young Ha OH
Journal of Pathology and Translational Medicine 2016;50(5):327-336
BACKGROUND: Developing predictive markers for hepatocellular carcinoma (HCC) is important, because many patients experience recurrence and metastasis. Epithelial to mesenchymal transition (EMT) is a developmental process that plays an important role during embryogenesis and also during cancer metastasis. Paired-related homeobox protein 1 (Prrx-1) is an EMT inducer that has recently been introduced, and its prognostic significance in HCC is largely unknown. METHODS: Tissue microarray was constructed using surgically resected primary HCCs from 244 cases. Immunohistochemical staining of E-cadherin and Prrx-1 was performed. The correlation between E-cadherin loss and Prrx-1 expression, as well as other clinicopathologic factors, was evaluated. RESULTS: E-cadherin expression was decreased in 96 cases (39.4%). Loss of E-cadherin correlated with a higher recurrence rate (p < .001) but was not correlated with patient's survival. Thirty-two cases (13.3%) showed at least focal nuclear Prrx-1 immunoreactivity while all non-neoplastic livers (n = 22) were negative. Prrx-1 expression was not associated with E-cadherin loss, survival or recurrence rates, pathologic factors, or the Ki-67 labeling index. Twenty tumors that were positive for E-cadherin and Prrx-1 had significantly higher nuclear grades than the rest of the cohort (p = .037). In Cox proportional hazard models, E-cadherin loss and large vessel invasion were independent prognostic factors for shorter disease-free survival. Cirrhosis and high Ki-67 index (> 40%) were independent prognostic factors for shorter overall survival. CONCLUSIONS: Prrx-1 was expressed in small portions of HCCs but not in normal livers. Additional studies with a large number of Prrx-1-positive cases are required to confirm the results of this study.
Cadherins*
;
Carcinoma, Hepatocellular*
;
Cohort Studies
;
Disease-Free Survival
;
Embryonic Development
;
Epithelial-Mesenchymal Transition
;
Female
;
Fibrosis
;
Genes, Homeobox
;
Humans
;
Liver
;
Neoplasm Metastasis
;
Pregnancy
;
Proportional Hazards Models
;
Recurrence