Journal of Pathology and Translational Medicine

Original Article

Upward trend in follicular lymphoma among the Korean population: 10-year experience at a large tertiary institution: Meejeong Kim, Hee Sang Hwang, Hyungwoo Cho, Dok Hyun Yoon, Cheolwon Suh, Chan Sik Park, Heounjeong Go, Jooryung Huh; J Pathol Transl Med. 2021;55(5):330-337. Published online September 2, 2021; DOI: https://doi.org/10.4132/jptm.2021.07.25

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Background
Follicular lymphoma (FL) is the second most common non-Hodgkin lymphoma (NHL) in Western countries. However, it is relatively rare in Asia. This study examined epidemiologic characteristics of FL in South Korea, with an emphasis on recent trends of increase in cases.
Methods
We retrospectively examined 239 cases of newly diagnosed FL at a large tertiary institution in Korea (Asan Medical Center, Seoul, Republic of Korea) between 2008 and 2017. Age-adjusted incidence rates and clinicopathological variables were analyzed, and joinpoint regression analysis was used to identify the changes.
Results
The age-adjusted incidence of FL significantly increased during the study period (p = .034), and the ratio of (relative incidence) patients with FL to patients with NHL increased from 4.28% to 9.35% in the same period. Over the 10-year study assessment duration, the proportion of patients with stage III/IV FL (p = .035) and expression of BCL2 (p = .022) or BCL6 (p = .039) significantly increased. From 2013–2017, the proportion of patients with highrisk Follicular Lymphoma International Prognostic Index (FLIPI) score increased (21.5% to 28.7%), whereas that of low-risk FLIPI decreased (55.4% to 38.6%), although those results were not statistically significant (p = .066).
Conclusions
We found an increasing incidence of FL, with a disproportionate increase in the incidence of high-stage disease and recent changes in the clinicopathologic features of the Korean patient population.

Citations

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Incidence Trend of Follicular Lymphoma in Taiwan Compared to Japan and Korea, 2001–2019
Liang-Chun Chiu, Chih-Wen Lin, Hung-Ju Li, Jian-Han Chen, Fu-Cheng Chuang, Sheng-Fung Lin, Yu Chang, Yu-Chieh Su
Journal of Clinical Medicine.2023; 12(4): 1417. CrossRef
A Case Report on the Complete Response of a Patient with Recurrent Follicular Lymphoma Treated with Integrative Medicine
Kyung-dug Park, Jisoo Kim, Yoona Oh, Beom-Jin Jeong, Yu-jin Jung, Sunhwi Bang
The Journal of Internal Korean Medicine.2023; 44(3): 585. CrossRef
Recent Updates on Diagnosis and Treatment of Follicular Lymphoma
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The Korean Journal of Medicine.2023; 98(5): 231. CrossRef
Classical Hodgkin lymphoma following follicular lymphoma: a case report
Bomi Kim
Journal of Yeungnam Medical Science.2023; 40(Suppl): S113. CrossRef
Incidence, clinicopathological features and genetics of in‐situ follicular neoplasia: a comprehensive screening study in a Japanese cohort
Naoki Oishi, Takahiro Segawa, Kunio Miyake, Kunio Mochizuki, Tetsuo Kondo
Histopathology.2022; 80(5): 820. CrossRef

Brief Case Report

Vascular Ehlers-Danlos syndrome with distinct histopathologic features: Hee Sang Hwang, Jin Woo Song, Se Jin Jang; J Pathol Transl Med. 2022;56(3):167-169. Published online May 11, 2021; DOI: https://doi.org/10.4132/jptm.2021.03.24

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Uncommon association between vascular Ehlers–Danlos syndrome and ocular complications
Matei Popa Cherecheanu, Mihaela Oana Romanitan, Ruxandra Pirvulescu, Raluca Iancu, Gerhard Garhöfer, George Iancu, Alina Popa Cherecheanu, Mihail Zemba, Victor Vasile, Andrei Simonov, Daniel Branisteanu
Frontiers in Medicine.2023;[Epub] CrossRef

Original Article

Diverse Immunoprofile of Ductal Adenocarcinoma of the Prostate with an Emphasis on the Prognostic Factors: Se Un Jeong, Anuja Kashikar Kekatpure, Ja-Min Park, Minkyu Han, Hee Sang Hwang, Hui Jeong Jeong, Heounjeong Go, Yong Mee Cho; J Pathol Transl Med. 2017;51(5):471-481. Published online August 9, 2017; DOI: https://doi.org/10.4132/jptm.2017.06.02

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Abstract PDF

Background
Ductal adenocarcinoma (DAC) of the prostate is an uncommon histologic subtype whose prognostic factors and immunoprofile have not been fully defined. Methods: To define its prognostic factors and immunoprofile, the clinicopathological features, including biochemical recurrence (BCR), of 61 cases of DAC were analyzed. Immunohistochemistry was performed on tissue microarray constructs to assess the expression of prostate cancer-related and mammalian target of rapamycin (mTOR) signaling-related proteins. Results: During the median follow-up period of 19.3 months, BCR occurred in 26 cases (42.6%). DAC demonstrated a wide expression range of prostate cancer-related proteins, including nine cases (14.8%) that were totally negative for pan-cytokeratin (PanCK) immunostaining. The mTOR signaling-related proteins also showed diverse expression. On univariate analysis, BCR was associated with high preoperative serum levels of prostate-specific antigen (PSA), large tumor volume, predominant ductal component, high Gleason score (GS), comedo-necrosis, high tumor stage (pT), lymphovascular invasion, and positive surgical margin. High expressions of phospho-mTOR (p-mTOR) as well as low expressions of PSA, phospho-S6 ribosomal protein (pS6) and PanCK were associated with BCR. On multivariable analysis, GS, pT, and immunohistochemical expressions of PanCK and p-mTOR remained independent prognostic factors for BCR. Conclusions: These results suggest GS, pT, and immunohistochemical expressions of PanCK and p-mTOR as independent prognostic factors for BCR in DAC. Since DAC showed diverse expression of prostate cancer–related proteins, this should be recognized in interpreting the immunoprofile of DAC. The diverse expression of mTOR-related proteins implicates their potential utility as predictive markers for mTOR targeted therapy.

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Mitchell G. Lawrence, Laura H. Porter, David Clouston, Declan G. Murphy, Mark Frydenberg, Renea A. Taylor, Gail P. Risbridger
Science Translational Medicine.2020;[Epub] CrossRef
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European Urology Focus.2019; 5(3): 433. CrossRef
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Brief Case Report

A Case of Type II Enteropathy-Associated T-Cell Lymphoma with Epstein-Barr Virus Positivity: Min Jeong Song, Chan Sik Park, Hee Sang Hwang, Cheol Won Suh, Dok Hyun Yoon, Jooryung Huh; Korean J Pathol. 2014;48(6):426-429. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.426

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