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Article ; Online: Myxoid Liposarcoma of the Breast Mimicking Phyllodes Tumor: A Case Report.

Lee, Se Jin / Ryu, Jung Kyu / Won, Kyu Yeoun / Han, Sang-Ah

Journal of the Korean Society of Radiology

2023 Volume 84, Issue 4, Page(s) 952–957

Abstract: Myxoid liposarcoma is an extremely rare malignant breast tumor. We report the case of a 44-year-old woman who had myxoid liposarcoma of the breast with a history of phyllodes tumor and describe the imaging findings on US, mammography, and MRI. Before ... ...

Abstract	Myxoid liposarcoma is an extremely rare malignant breast tumor. We report the case of a 44-year-old woman who had myxoid liposarcoma of the breast with a history of phyllodes tumor and describe the imaging findings on US, mammography, and MRI. Before surgery, the mass was considered to be a recurrent phyllodes tumor. However, using US, we retrospectively identified some differences between myxoid liposarcomas and phyllodes tumors.
Language	English
Publishing date	2023-07-14
Publishing country	Korea (South)
Document type	Case Reports
ISSN	2951-0805
ISSN (online)	2951-0805
DOI	10.3348/jksr.2022.0146
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Article ; Online: Bicameral Gallbladder With Chronic Cholecystitis on Hepatobiliary Scintigraphy.

Won, Kyu Yeoun / Kim, Chanwoo

Clinical nuclear medicine

2020 Volume 46, Issue 1, Page(s) 78–80

Abstract: Bicameral gallbladder, also known as segmental adenomyomatosis, is not a rare benign condition with the lumen divided into 2 interconnected chambers. Here we present 2 interesting cases of the bicameral gallbladder, which shows unremarkable findings on ... ...

Abstract	Bicameral gallbladder, also known as segmental adenomyomatosis, is not a rare benign condition with the lumen divided into 2 interconnected chambers. Here we present 2 interesting cases of the bicameral gallbladder, which shows unremarkable findings on hepatobiliary scintigraphy at first appearance. However, the CT scan revealed that the fundal chamber was not visualized on the scintigraphy unlike the ductal chamber. These cases suggest that the findings of the bicameral gallbladder on hepatobiliary scintigraphy can lead to misdiagnosis without carefully correlating with anatomic imaging findings.
MeSH term(s)	Cholecystitis/complications ; Chronic Disease ; Female ; Gallbladder/diagnostic imaging ; Gallbladder/pathology ; Humans ; Hyperplasia/diagnostic imaging ; Male ; Radionuclide Imaging ; Tomography, X-Ray Computed
Language	English
Publishing date	2020-10-07
Publishing country	United States
Document type	Case Reports ; Journal Article
ZDB-ID	197628-x
ISSN	1536-0229 ; 0363-9762
ISSN (online)	1536-0229
ISSN	0363-9762
DOI	10.1097/RLU.0000000000003369
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Article ; Online: The antioncogenic effect of Beclin-1 and FOXP3 is associated with SKP2 expression in gastric adenocarcinoma.

Kim, Hyung Kyung / Won, Kyu Yeoun / Han, Sang-Ah

Medicine

2021 Volume 100, Issue 33, Page(s) e26951

Abstract: Abstract: An overexpression of S-phase kinase-associated protein 2 (SKP2) is frequently observed in human cancer progression and metastasis, and evidence suggests that SKP2 plays a proto-oncogenic role both in vitro and in vivo. However, the function of ...

Abstract	Abstract: An overexpression of S-phase kinase-associated protein 2 (SKP2) is frequently observed in human cancer progression and metastasis, and evidence suggests that SKP2 plays a proto-oncogenic role both in vitro and in vivo. However, the function of SKP2 in gastric adenocarcinoma remains largely obscure. We investigated SKP2 expression in human gastric carcinomas.Tissue samples were acquired from 182 cases of gastric adenocarcinoma that were surgically resected from 2006 to 2012. Immunohistochemical staining for SKP2, Beclin-1, and forkhead box protein P3 (FOXP3) was performed. Pearson chi-square test was used to evaluate the associations among clinicopathological variables. The Kaplan-Meier method, the log-rank test, and the Cox proportional-hazards model were used in the analysis of the overall survival (OS) and disease-free survival (DFS).As a result, SKP2 overexpression in gastric adenocarcinomas showed a significant correlation with several favorable clinical factors, including the tumor size, T category, N category, lymphatic invasion, vascular invasion, OS, and DFS. SKP2 expression was positively correlated with the tumoral FOXP3, Beclin-1 expression, and regulatory T cell (Treg) infiltration. The difference in DFS between the SKP2 positive and negative group was attenuated by FOXP3 high expression, Beclin-1 high expression, and Tregs infiltration. Attenuation of the difference in OS by FOXP3 high expression, Beclin-1 high expression, and Tregs infiltration was not significant. In multivariable analysis, SKP2 expression was not correlated with OS and DFS.Our study showed a complex interrelationship between SKP2 and Beclin-1 and FOXP3 expression in gastric adenocarcinoma. The antioncogenic effect of Beclin-1 and FOXP3 expression in gastric adenocarcinoma is related to SKP2 expression.
MeSH term(s)	Adenocarcinoma/metabolism ; Adenocarcinoma/mortality ; Adenocarcinoma/pathology ; Adult ; Aged ; Aged, 80 and over ; Beclin-1/metabolism ; Disease-Free Survival ; Female ; Forkhead Transcription Factors/metabolism ; Gene Expression Regulation, Neoplastic ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Proportional Hazards Models ; S-Phase Kinase-Associated Proteins/metabolism ; Stomach Neoplasms/metabolism ; Stomach Neoplasms/mortality ; Stomach Neoplasms/pathology ; Survival Analysis ; Tissue Array Analysis
Chemical Substances	BECN1 protein, human ; Beclin-1 ; FOXP3 protein, human ; Forkhead Transcription Factors ; S-Phase Kinase-Associated Proteins ; SKP2 protein, human
Language	English
Publishing date	2021-08-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	80184-7
ISSN	1536-5964 ; 0025-7974
ISSN (online)	1536-5964
ISSN	0025-7974
DOI	10.1097/MD.0000000000026951
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Article: Mesonephric Adenocarcinoma of the Uterine Fundus Exhibiting High

Kim, Hyung Kyung / Won, Kyu Yeoun / Kim, Chanwoo

Diagnostics (Basel, Switzerland)

2020 Volume 10, Issue 9

Abstract: Mesonephric adenocarcinoma is a rare tumor that is considered to develop from mesonephric remnants of the female genital tract. This tumor usually occurs in the lateral wall of the uterine cervix. Herein, we present an exceptionally rare case of ... ...

Abstract	Mesonephric adenocarcinoma is a rare tumor that is considered to develop from mesonephric remnants of the female genital tract. This tumor usually occurs in the lateral wall of the uterine cervix. Herein, we present an exceptionally rare case of mesonephric adenocarcinoma located in the uterine fundus. The tumor exhibited intense hypermetabolism on
Language	English
Publishing date	2020-09-21
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662336-5
ISSN	2075-4418
ISSN	2075-4418
DOI	10.3390/diagnostics10090729
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Article ; Online: Clear cell chondrosarcoma of the talus in Von Hippel-Lindau disease: a rare tumor in an unusual location and uncommon co-presentation.

Song, Min Jeong / Won, Kyu Yeoun / Park, Soonchan

International journal of clinical and experimental pathology

2020 Volume 13, Issue 2, Page(s) 266–271

Abstract: Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited tumor syndrome. Clear cell chondrosarcoma (CCCS) is a rare variant of chondrosarcoma. Here, we report a case of CCCS in the talus occurring in a patient with VHL disease. A 32-year-old ... ...

Abstract	Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited tumor syndrome. Clear cell chondrosarcoma (CCCS) is a rare variant of chondrosarcoma. Here, we report a case of CCCS in the talus occurring in a patient with VHL disease. A 32-year-old man presented with ankle pain for 2 years. MRI revealed a 4.2 cm mass in the talus, and needle biopsy was performed. The patient underwent curettage but the final diagnosis was CCCS. Adjuvant radiation therapy was performed without additional talectomy and the patient was alive without recurrence for a follow-up period of 2 years. To our knowledge, this is the first case in the English medical literature of a co-presentation of this rare disease and condition: i.e. CCCS with VHL disease in the unusual location of the talus. We cautiously suggest that CCCS may be associated with VHL disease based on their histologic similarity.
Language	English
Publishing date	2020-02-01
Publishing country	United States
Document type	Case Reports
ZDB-ID	2418306-4
ISSN	1936-2625 ; 1936-2625
ISSN (online)	1936-2625
ISSN	1936-2625
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Article ; Online: Expression of Beclin-1, an autophagy-related protein, is associated with tumoral FOXP3 expression and Tregs in gastric adenocarcinoma: The function of Beclin-1 expression as a favorable prognostic factor in gastric adenocarcinoma.

Song, Min Jeong / Park, Soonchan / Won, Kyu Yeoun

Pathology, research and practice

2020 Volume 216, Issue 5, Page(s) 152927

Abstract: Background: Autophagy, which is stimulated by cellular or environmental stresses, is involved in several distinct biological processes, and the regulation mechanism is complex. Autophagy has been reported to modulate immune system components. In the ... ...

Abstract	Background: Autophagy, which is stimulated by cellular or environmental stresses, is involved in several distinct biological processes, and the regulation mechanism is complex. Autophagy has been reported to modulate immune system components. In the present study, the expression of Beclin-1 and LC3, an autophagy-related proteins, and its relationship with FOXP3 expression were investigated in gastric adenocarcinoma cells and FOXP3+T cells (regulatory T cells). Methods: Tissue samples were acquired from 182 cases of gastric adenocarcinoma that were surgically resected at Kyung Hee University Hospital at Gangdong from 2006 to 2012. Immunohistochemical staining for Beclin-1, LC3, FOXP3, and CD8 was performed. Results: Consequently, positive Beclin-1 expression was significantly associated with a smaller tumor size, mixed histologic type, better histologic grade, lower T category, lower N category, lower recurrence rate, less lymphatic invasion, less vascular invasion, and less neural invasion. Positive tumoral FOXP3 expression was significantly associated with a lower T category, lower N category, lower recurrence rate, and less lymphatic invasion. The cases of more infiltrated Tregs (≥ 25/high power field, HPF) significantly correlated with a lower N category, lower recurrence rate, less lymphatic invasion, more infiltrated CD8+T cells, and a higher number of tumor-infiltrating lymphocytes. Beclin-1 and LC3 expression were positively correlated with tumoral FOXP3 overexpression. In addition, Beclin-1 expression was significantly associated with a greater number of infiltrated Tregs in gastric adenocarcinoma. Both the positive Beclin-1 expression and positive tumoral FOXP3 expression cases showed significantly better disease-free and overall survival. In addition, the patients with an increased number of infiltrated Tregs (≥ 25/HPF) showed better disease-free and overall survival rates. Conclusion: In conclusion, the autophagic function of Beclin-1 in gastric adenocarcinoma cells was associated with an increased number of infiltrated Tregs and tumoral FOXP3 containing tumor suppressor function. Therefore, the favorable effects of Beclin-1 expression in gastric adenocarcinoma is associated with the regulation of Tregs and tumoral FOXP3 expression.
MeSH term(s)	Adenocarcinoma/immunology ; Adenocarcinoma/pathology ; Adult ; Aged ; Aged, 80 and over ; Autophagy ; Autophagy-Related Proteins/metabolism ; Beclin-1/metabolism ; Biomarkers, Tumor/analysis ; Female ; Forkhead Transcription Factors/biosynthesis ; Forkhead Transcription Factors/immunology ; Humans ; Lymphocytes, Tumor-Infiltrating/immunology ; Male ; Middle Aged ; Prognosis ; Stomach Neoplasms/immunology ; Stomach Neoplasms/pathology ; T-Lymphocytes, Regulatory/immunology
Chemical Substances	Autophagy-Related Proteins ; BECN1 protein, human ; Beclin-1 ; Biomarkers, Tumor ; FOXP3 protein, human ; Forkhead Transcription Factors
Language	English
Publishing date	2020-03-17
Publishing country	Germany
Document type	Journal Article
ZDB-ID	391889-0
ISSN	1618-0631 ; 0344-0338
ISSN (online)	1618-0631
ISSN	0344-0338
DOI	10.1016/j.prp.2020.152927
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Article: Protective Effect of Polydeoxyribonucleotide Against CCl4-Induced Acute Liver Injury in Mice.

Lee, Seunghwan / Won, Kyu Yeoun / Joo, Sunhyung

International neurourology journal

2020 Volume 24, Issue Suppl 2, Page(s) 88–95

Abstract: Purpose: Polydeoxyribonucleotide (PDRN) is a substance known to suppress inflammation and accelerate wound healing. In this experiment, the effect of PDRN treatment on carbon tetrachloride (CCl4)-evoked acute liver injury (ALI) was investigated using ... ...

Abstract	Purpose: Polydeoxyribonucleotide (PDRN) is a substance known to suppress inflammation and accelerate wound healing. In this experiment, the effect of PDRN treatment on carbon tetrachloride (CCl4)-evoked acute liver injury (ALI) was investigated using mice. Methods: We analyzed the levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and conducted hematoxylin and eosin staining in accompany with terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling staining. Western blot analysis was also conducted to assess the expressions of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, adenosine A2A receptor, Bcl-2-associated X protein (Bax), and B-cell lymphoma 2 (Bcl-2). The mice were received intraperitoneal injection of 10-mL/kg CCl4, 4 times, once every 2 days. The mice in the PDRN treatment groups received intraperitoneal injection of 200-μL distilled water comprising each concentration of PDRN for 7 days starting 1 day after first CCl4 injection. Results: ALT and AST concentrations in the serum were reduced and TNF-α, IL-1β, and IL-6 expressions were decreased by PDRN injection in CCl4-evoked ALI mice. PDRN injection suppressed Bax versus Bcl-2 ratio and reduced the percentage of TUNE-positive cells in CCl4-evoked ALI mice. PDRN injection overexpressed adenosine A2A receptor in CCl4-evoked ALI mice. Conclusion: The therapeutic efficacy of PDRN also can be expected for CCl4-evoked acute urogenital injury in addition to ALI. The current research suggests that PDRN may be used for the therapeutic agent of CCl4-evoked ALI.
Language	English
Publishing date	2020-11-23
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2584447-7
ISSN	2093-6931 ; 2093-4777
ISSN (online)	2093-6931
ISSN	2093-4777
DOI	10.5213/inj.2040430.215
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Article ; Online: Solitary, Endobronchial Metastasis from Renal Cell Carcinoma 20 Years after Nephrectomy.

Kim, Min Ju / Kim, Jung Im / Won, Kyu Yeoun / Lee, Han Na

Taehan Yongsang Uihakhoe chi

2021 Volume 82, Issue 4, Page(s) 994–999

Abstract: Late recurrence over 10 years after surgery and endobronchial metastasis are some of the specific biological behaviors of renal cell carcinoma (RCC). The current report describes a case of solitary endobronchial metastasis at a subsegmental bronchus that ...

Abstract	Late recurrence over 10 years after surgery and endobronchial metastasis are some of the specific biological behaviors of renal cell carcinoma (RCC). The current report describes a case of solitary endobronchial metastasis at a subsegmental bronchus that developed 20 years after curative nephrectomy for RCC. A 71-year-old male was admitted to our hospital for pneumonia. Chest radiography showed multifocal ill-defined nodular opacities in the right lower lung zone, suggesting pneumonia. Subsequent chest CT confirmed pneumonic infiltration in the right lung. However, a 4.3-cm, well-defined, elongated mass with a branching pattern was also identified in the right lower lobe, and a right nephrectomy scar was detected on the covered upper abdomen. The patient had undergone right nephrectomy 20 years ago due to clear cell RCC. After right lower lobectomy, the postoperative pathological diagnosis was endobronchial metastatic clear cell RCC. Endobronchial metastasis should be considered in a patient with a history of RCC who presents with a suspected endobronchial tumor, even decades after curative surgery.
Language	English
Publishing date	2021-07-02
Publishing country	Korea (South)
Document type	Case Reports
ISSN	2288-2928
ISSN (online)	2288-2928
DOI	10.3348/jksr.2020.0131
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Article ; Online: Tubulocystic Renal Cell Carcinoma Is Not an Indolent Tumor: A Case Report of Recurrences in the Retroperitoneum and Contralateral Kidney.

Choi, Tae-Soo / Lee, Dong-Gi / Won, Kyu-Yeoun / Min, Gyeong-Eun

Medicina (Kaunas, Lithuania)

2021 Volume 57, Issue 8

Abstract: Tubulocystic renal cell carcinoma (RCC) is a rare subtype of RCC that was recently included in the 2016 World Health Organization classification of tumors of the kidney. Most of these tumors exhibit indolent behavior with low metastatic potential. ... ...

Abstract	Tubulocystic renal cell carcinoma (RCC) is a rare subtype of RCC that was recently included in the 2016 World Health Organization classification of tumors of the kidney. Most of these tumors exhibit indolent behavior with low metastatic potential. However, here we report a case of recurrent tubulocystic RCC with aggressive features in the retroperitoneum and contralateral kidney treated with targeted agents and radiofrequency ablation.
MeSH term(s)	Carcinoma, Renal Cell/surgery ; Humans ; Kidney ; Kidney Neoplasms/surgery ; Neoplasm Recurrence, Local
Language	English
Publishing date	2021-08-21
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2188113-3
ISSN	1648-9144 ; 1010-660X
ISSN (online)	1648-9144
ISSN	1010-660X
DOI	10.3390/medicina57080851
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Zs.A 6270: Show issues

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Article ; Online: Imaging and Clinical Findings of Xanthogranulomatous Inflammatory Disease of Various Abdominal and Pelvic Organs: A Pictorial Essay.

Lee, Se Jin / Yang, Dal Mo / Kim, Hyun Cheol / Kim, Sang Won / Won, Kyu Yeoun / Park, So Hyun / Jeong, Woo Kyoung

Journal of the Korean Society of Radiology

2023 Volume 85, Issue 1, Page(s) 109–123

Abstract: Xanthogranulomatous (XG) inflammatory disease is a rare benign disease involving various organs, including the gallbladder, bile duct, pancreas, spleen, stomach, small bowel, colon, appendix, kidney, adrenal gland, urachus, urinary bladder, ... ...

Abstract	Xanthogranulomatous (XG) inflammatory disease is a rare benign disease involving various organs, including the gallbladder, bile duct, pancreas, spleen, stomach, small bowel, colon, appendix, kidney, adrenal gland, urachus, urinary bladder, retroperitoneum, and female genital organs. The imaging features of XG inflammatory disease are nonspecific, usually presenting as a heterogeneous solid or cystic mass. The disease may also extend to adjacent structures. Due to its aggressive nature, it is occasionally misdiagnosed as a malignant neoplasm. Herein, we review the radiological features and clinical manifestations of XG inflammatory diseases in various organs of the abdomen and pelvis.
Language	English
Publishing date	2023-12-09
Publishing country	Korea (South)
Document type	Journal Article ; Review
ISSN	2951-0805
ISSN (online)	2951-0805
DOI	10.3348/jksr.2023.0026
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