1.Frequency and Risk Factors of Advanced Neoplasia in Korean Inflammatory Bowel Disease Patients with Low-grade Dysplasia
Yong Eun PARK ; Kyeong Ok KIM ; Dong Hyun KIM ; Soo-Kyung PARK ; Yoo Jin LEE ; Chang Kyun LEE ;
The Korean Journal of Gastroenterology 2025;85(1):34-43
Background/Aims:
Studies on the clinical outcomes after detecting low-grade dysplasia (LGD) in patients with inflammatory bowel disease (IBD) are insufficient. This study evaluated the clinical features, frequency, and risk factors for advanced neoplasia in patients with IBD after an LGD diagnosis.
Methods:
The medical records of 166 patients with IBD from six university hospitals in Korea from 2010 to 2019 were reviewed retrospectively. LGD was diagnosed in all patients during surveillance. The frequency and risk factors for advanced neoplasia were evaluated, and the clinical features of patients with and without advanced neoplasia were compared.
Results:
Advanced neoplasia developed in 12 patients (six with large LGD, three with tubulovillous adenoma, and three with high-grade dysplasia), and all cases developed from UC. Patients with advanced neoplasia had significantly higher Mayo scores, and colitis-associated dysplasia was more common than sporadic lesions (83.3% vs. 29.9%; p<0.001). Multivariate analysis showed that colitis-associated LGD significantly increased the risk of developing advanced neoplasia (odds ratio [OR], 10.516; 95% confidence interval [CI], 2.064–53.577). Among patients with colitis-associated lesions, a significant risk factor for advanced neoplasia was a prior history of LGD (OR, 9.429; 95% CI, 1.330–66.863).
Conclusions
Advanced neoplasia developed in 7.2% of patients with IBD and LGD. Most advanced neoplasms developed from colitis-associated lesions, and the risk was higher in patients with a history of LGD before index colonoscopy.
2.Frequency and Risk Factors of Advanced Neoplasia in Korean Inflammatory Bowel Disease Patients with Low-grade Dysplasia
Yong Eun PARK ; Kyeong Ok KIM ; Dong Hyun KIM ; Soo-Kyung PARK ; Yoo Jin LEE ; Chang Kyun LEE ;
The Korean Journal of Gastroenterology 2025;85(1):34-43
Background/Aims:
Studies on the clinical outcomes after detecting low-grade dysplasia (LGD) in patients with inflammatory bowel disease (IBD) are insufficient. This study evaluated the clinical features, frequency, and risk factors for advanced neoplasia in patients with IBD after an LGD diagnosis.
Methods:
The medical records of 166 patients with IBD from six university hospitals in Korea from 2010 to 2019 were reviewed retrospectively. LGD was diagnosed in all patients during surveillance. The frequency and risk factors for advanced neoplasia were evaluated, and the clinical features of patients with and without advanced neoplasia were compared.
Results:
Advanced neoplasia developed in 12 patients (six with large LGD, three with tubulovillous adenoma, and three with high-grade dysplasia), and all cases developed from UC. Patients with advanced neoplasia had significantly higher Mayo scores, and colitis-associated dysplasia was more common than sporadic lesions (83.3% vs. 29.9%; p<0.001). Multivariate analysis showed that colitis-associated LGD significantly increased the risk of developing advanced neoplasia (odds ratio [OR], 10.516; 95% confidence interval [CI], 2.064–53.577). Among patients with colitis-associated lesions, a significant risk factor for advanced neoplasia was a prior history of LGD (OR, 9.429; 95% CI, 1.330–66.863).
Conclusions
Advanced neoplasia developed in 7.2% of patients with IBD and LGD. Most advanced neoplasms developed from colitis-associated lesions, and the risk was higher in patients with a history of LGD before index colonoscopy.
3.Frequency and Risk Factors of Advanced Neoplasia in Korean Inflammatory Bowel Disease Patients with Low-grade Dysplasia
Yong Eun PARK ; Kyeong Ok KIM ; Dong Hyun KIM ; Soo-Kyung PARK ; Yoo Jin LEE ; Chang Kyun LEE ;
The Korean Journal of Gastroenterology 2025;85(1):34-43
Background/Aims:
Studies on the clinical outcomes after detecting low-grade dysplasia (LGD) in patients with inflammatory bowel disease (IBD) are insufficient. This study evaluated the clinical features, frequency, and risk factors for advanced neoplasia in patients with IBD after an LGD diagnosis.
Methods:
The medical records of 166 patients with IBD from six university hospitals in Korea from 2010 to 2019 were reviewed retrospectively. LGD was diagnosed in all patients during surveillance. The frequency and risk factors for advanced neoplasia were evaluated, and the clinical features of patients with and without advanced neoplasia were compared.
Results:
Advanced neoplasia developed in 12 patients (six with large LGD, three with tubulovillous adenoma, and three with high-grade dysplasia), and all cases developed from UC. Patients with advanced neoplasia had significantly higher Mayo scores, and colitis-associated dysplasia was more common than sporadic lesions (83.3% vs. 29.9%; p<0.001). Multivariate analysis showed that colitis-associated LGD significantly increased the risk of developing advanced neoplasia (odds ratio [OR], 10.516; 95% confidence interval [CI], 2.064–53.577). Among patients with colitis-associated lesions, a significant risk factor for advanced neoplasia was a prior history of LGD (OR, 9.429; 95% CI, 1.330–66.863).
Conclusions
Advanced neoplasia developed in 7.2% of patients with IBD and LGD. Most advanced neoplasms developed from colitis-associated lesions, and the risk was higher in patients with a history of LGD before index colonoscopy.
4.Frequency and Risk Factors of Advanced Neoplasia in Korean Inflammatory Bowel Disease Patients with Low-grade Dysplasia
Yong Eun PARK ; Kyeong Ok KIM ; Dong Hyun KIM ; Soo-Kyung PARK ; Yoo Jin LEE ; Chang Kyun LEE ;
The Korean Journal of Gastroenterology 2025;85(1):34-43
Background/Aims:
Studies on the clinical outcomes after detecting low-grade dysplasia (LGD) in patients with inflammatory bowel disease (IBD) are insufficient. This study evaluated the clinical features, frequency, and risk factors for advanced neoplasia in patients with IBD after an LGD diagnosis.
Methods:
The medical records of 166 patients with IBD from six university hospitals in Korea from 2010 to 2019 were reviewed retrospectively. LGD was diagnosed in all patients during surveillance. The frequency and risk factors for advanced neoplasia were evaluated, and the clinical features of patients with and without advanced neoplasia were compared.
Results:
Advanced neoplasia developed in 12 patients (six with large LGD, three with tubulovillous adenoma, and three with high-grade dysplasia), and all cases developed from UC. Patients with advanced neoplasia had significantly higher Mayo scores, and colitis-associated dysplasia was more common than sporadic lesions (83.3% vs. 29.9%; p<0.001). Multivariate analysis showed that colitis-associated LGD significantly increased the risk of developing advanced neoplasia (odds ratio [OR], 10.516; 95% confidence interval [CI], 2.064–53.577). Among patients with colitis-associated lesions, a significant risk factor for advanced neoplasia was a prior history of LGD (OR, 9.429; 95% CI, 1.330–66.863).
Conclusions
Advanced neoplasia developed in 7.2% of patients with IBD and LGD. Most advanced neoplasms developed from colitis-associated lesions, and the risk was higher in patients with a history of LGD before index colonoscopy.
5.Frequency and Risk Factors of Advanced Neoplasia in Korean Inflammatory Bowel Disease Patients with Low-grade Dysplasia
Yong Eun PARK ; Kyeong Ok KIM ; Dong Hyun KIM ; Soo-Kyung PARK ; Yoo Jin LEE ; Chang Kyun LEE ;
The Korean Journal of Gastroenterology 2025;85(1):34-43
Background/Aims:
Studies on the clinical outcomes after detecting low-grade dysplasia (LGD) in patients with inflammatory bowel disease (IBD) are insufficient. This study evaluated the clinical features, frequency, and risk factors for advanced neoplasia in patients with IBD after an LGD diagnosis.
Methods:
The medical records of 166 patients with IBD from six university hospitals in Korea from 2010 to 2019 were reviewed retrospectively. LGD was diagnosed in all patients during surveillance. The frequency and risk factors for advanced neoplasia were evaluated, and the clinical features of patients with and without advanced neoplasia were compared.
Results:
Advanced neoplasia developed in 12 patients (six with large LGD, three with tubulovillous adenoma, and three with high-grade dysplasia), and all cases developed from UC. Patients with advanced neoplasia had significantly higher Mayo scores, and colitis-associated dysplasia was more common than sporadic lesions (83.3% vs. 29.9%; p<0.001). Multivariate analysis showed that colitis-associated LGD significantly increased the risk of developing advanced neoplasia (odds ratio [OR], 10.516; 95% confidence interval [CI], 2.064–53.577). Among patients with colitis-associated lesions, a significant risk factor for advanced neoplasia was a prior history of LGD (OR, 9.429; 95% CI, 1.330–66.863).
Conclusions
Advanced neoplasia developed in 7.2% of patients with IBD and LGD. Most advanced neoplasms developed from colitis-associated lesions, and the risk was higher in patients with a history of LGD before index colonoscopy.
6.Structural Model Analysis of Discriminatory Behavior Toward People With Severe Mental Illness
Ok Kyung YANG ; Sung-Wan KIM ; Jinhee HYUN ; KiYeon LEE ; Jong-Woo PAIK ; Yu-Ri LEE
Psychiatry Investigation 2022;19(6):480-487
Objective:
This study aimed to determine how prejudice and attitude toward people with severe mental illness, formed through exposure to the mass media, affect discriminatory behavior toward them.
Methods:
Between September and November 2019, demographic data were collected using an online survey of 622 adults residing in South Korea. The scales used in this study were taken from the 2008 survey by the National Human Rights Commission of Korea. Structural equation modeling was performed for a comparative analysis of the direct and indirect effects.
Results:
Virtual experience through mass media exposure had a statistically significant effect on prejudice against people with severe mental illness. Direct experience had a positive influence on reducing prejudice and discriminatory behavior. The direct effects of prejudice on discriminatory behavior were significant. In terms of indirect effects, the full mediating effect of prejudice was significant for the virtual experience through the mass media-prejudice-discriminatory behavior path, and the partial mediating effect of prejudice was significant on the direct experience-prejudice-discrimination behavior path.
Conclusion
This study recommends more careful reporting of mental illness in the media, promoting anti-stigmatization programs that provide opportunities for direct contact between the public and people with severe mental illness.
7.Clinicopathologic implication of PD-L1 gene alteration in primary adrenal diffuse large B cell lymphoma
Ki Rim LEE ; Jiwon KOH ; Yoon Kyung JEON ; Hyun Jung KWON ; Jeong-Ok LEE ; Jin Ho PAIK
Journal of Pathology and Translational Medicine 2022;56(1):32-39
Background:
Primary adrenal (PA) diffuse large B cell lymphoma (DLBCL) was previously reported as an aggressive subset of DLBCL, but its genetic features were not sufficiently characterized. From our previous study of DLBCL with programmed death-ligand 1 (PD-L1) gene alterations, we focused on PD-L1 gene alterations in PA-DLBCL with clinicopathologic implications.
Methods:
We performed fluorescence in situ hybridization for PD-L1 gene translocation and amplification in PA-DLBCL (n = 18) and comparatively analyzed clinicopathologic characteristics with systemic non-adrenal (NA)-DLBCL (n = 90).
Results:
PA-DLBCL harbored distinctive features (vs. NADLBCL), including high international prognostic index score (3–5) (72% [13/18] vs. 38% [34/90], p = .007), poor Eastern Cooperative Oncology Group performance score (≥ 2) (47% [7/15] vs. 11% [10/90], p = .003), elevated serum lactate dehydrogenase (LDH) (78% [14/18] vs. 51% [44/87], p = .035) and MUM1 expression (87% [13/15] vs. 60% [54/90], p = .047). Moreover, PA-DLBCL showed frequent PD-L1 gene alterations (vs. NA-DLBCL) (39% [7/18] vs. 6% [5/86], p = .001), including translocation (22% [4/18] vs. 3% [3/87], p = .016) and amplification (17% [3/18] vs. 2% [2/87], p = .034). Within the PA-DLBCL group, PD-L1 gene–altered cases (vs. non-altered cases) tended to have B symptoms (p = .145) and elevated LDH (p = .119) but less frequent bulky disease (≥ 10 cm) (p = .119). In the survival analysis, PA-DLBCL had a poor prognosis for overall survival (OS) and progression-free survival (PFS) (vs. NA-DLBCL; p = .014 and p = .004). Within the PA-DLBCL group, PD-L1 translocation was associated with shorter OS and PFS (p < .001 and p = .012).
Conclusions
PA-DLBCL is a clinically aggressive and distinct subset of DLBCL with frequent PD-L1 gene alterations. PD-L1 gene translocation was associated with poor prognosis in PA-DLBCL.
8.Successful Endoscopic Resection of Tubulovillous Adenoma Arising in Choledochocele
Shin Hee LEE ; Kyu-hyun PAIK ; Han Beol JANG ; Jun Hyung PARK ; Jong Ok KIM ; Won Suk PARK
Korean Journal of Pancreas and Biliary Tract 2021;26(1):58-62
Choledochocele is the least common type of choledochal cyst. Choledochocele has a potential for carcinogenesis, but only a handful of cases with concurrent ampullary carcinoma have been reported. We recently experienced a case of choledochocele with tubulovillous adenoma with focal high-grade dysplasia, which was successfully and completely resected en bloc via endoscopic papillectomy. Prior to endoscopic papillectomy, the endoscopic ultrasonography was able to accurately diagnose the ampullary tumor arising in choledochocele. Herein, we would like to report this case and discuss the potential of malignant transformation and the usefulness of endoscopic ultrasonography in choledochocele.
9.R-MPV followed by high-dose chemotherapy with thiotepa-based and autologous stem cell transplantation for newly diagnosed primary central nervous system lymphoma: a single-center experience
Ji Yun LEE ; Jin Ho PAIK ; Koung Jin SUH ; Ji-Won KIM ; Se Hyun KIM ; Jin Won KIM ; Yu Jung KIM ; Keun-Wook LEE ; Jee Hyun KIM ; Soo-Mee BANG ; Jong-Seok LEE ; Jeong-Ok LEE
Blood Research 2021;56(4):285-292
Background:
High-dose chemotherapy followed by autologous stem cell transplantation (HDC-ASCT) as a consolidation treatment is a promising approach for eligible patients with newly diagnosed primary central nervous system lymphoma (PCNSL).
Methods:
In this retrospective analysis, 22 patients with newly diagnosed PCNSL received chemotherapy with rituximab, methotrexate, procarbazine, and vincristine. Those who showed complete or partial response subsequently received consolidation HDC-ASCT with a thiotepa-based conditioning regimen but did not undergo radiotherapy.
Results:
The PCNSL patients had a median age of 57 years (range, 49‒67 yr); of the total patients, 9.1% had a performance status of 2 or higher, and 72.1% had multiple lesions.Approximately 82% of patients received six cycles of induction chemotherapy, which was well tolerated with excellent disease control. The rate of confirmed or unconfirmed complete response increased from 45.5% at the period of interim analysis to 81.8% prior to the initiation of HDC-ASCT. With a median follow-up of 19.6 months (range, 7.5‒56.5 mo), the 2-year progression-free survival and overall survival estimates were 84% and 88%, respectively. No treatment-related deaths occurred. Grade 3 toxicity was recorded in 90.9% of the patients after undergoing the HDC-ASCT, and the most common grade 3 adverse event was febrile neutropenia without sepsis.
Conclusion
The discussed treatment approach is feasible in patients with newly diagnosed PCNSL, yielding encouraging results.
10.Ovarian dysgerminoma with Müllerian anomaly: a case report
Ha Na KIM ; Jung Mi BYUN ; Jin Ok PARK ; Hye Kyoung YOON ; Da Hyun KIM ; Dae Hoon JEONG ; Young Nam KIM ; Kyung Bok LEE ; Moon Su SUNG
Obstetrics & Gynecology Science 2020;63(1):98-101
Adult
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Amenorrhea
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Congenital Abnormalities
;
Drug Therapy
;
Dysgerminoma
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Female
;
Humans
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Karyotype
;
Uterus

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