Journal of Pathology and Translational Medicine

Youngeun Lee

5 Articles

Prognostic significance of viable tumor size measurement in hepatocellular carcinomas after preoperative locoregional treatment: Yoon Jung Hwang, Youngeun Lee, Hyunjin Park, Yangkyu Lee, Kyoungbun Lee, Haeryoung Kim; J Pathol Transl Med. 2021;55(5):338-348. Published online September 2, 2021; DOI: https://doi.org/10.4132/jptm.2021.07.26

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Background
Preoperative locoregional treatment (LRT) for hepatocellular carcinoma (HCC) often induces intratumoral necrosis without affecting the overall tumor size, and residual viable tumor size (VTS) on imaging is an important clinical parameter for assessing post-treatment response. However, for surgical specimens, it is unclear whether the VTS would be more relevant to prognosis compared to total tumor size (TTS).
Methods
A total of 142 surgically resected solitary HCC cases were retrospectively reviewed. The TTS and VTS were assessed by applying the modified Response Evaluation Criteria in Solid Tumors method to the resected specimens, and correlated with the clinicopathological features and survival.
Results
As applying VTS, 13/142 cases (9.2%) were down-staged to ypT1a. Although the survival analysis results for overall survival according to TTS or VTS were similar, VTS was superior to predict disease-free survival (DFS; p = .023) compared to TTS (p = .08). In addition, multivariate analysis demonstrated VTS > 2 cm to be an independent predictive factor for decreased DFS (p = .001). In the subpopulation of patients with LRT (n = 54), DFS in HCCs with TTS or VTS > 2 cm were significantly shorter than those with TTS or VTS ≤ 2 cm (p = .047 and p = .001, respectively). Interestingly, HCCs with TTS > 2 cm but down-staged to VTS ≤ 2 cm after preoperative LRT had similar survival to those with TTS ≤ 2 cm.
Conclusions
Although the prognostic impact of tumor size was similar regardless of whether TTS or VTS was applied, reporting VTS may help to increase the number of candidates for surgery in HCC patients with preoperative LRT.

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PET-Assessed Metabolic Tumor Volume Across the Spectrum of Solid-Organ Malignancies: A Review of the Literature
Anusha Agarwal, Chase J. Wehrle, Sangeeta Satish, Paresh Mahajan, Suneel Kamath, Shlomo Koyfman, Wen Wee Ma, Maureen Linganna, Jamak Modaresi Esfeh, Charles Miller, David C. H. Kwon, Andrea Schlegel, Federico Aucejo
Biomedicines.2025; 13(1): 123. CrossRef
Measures for response assessment in HCC treatment
Fereshteh Yazdanpanah, Omar Al-Daoud, Moein Moradpour, Stephen Hunt
Hepatoma Research.2024;[Epub] CrossRef
Machine Learning for Dynamic Prognostication of Patients With Hepatocellular Carcinoma Using Time-Series Data: Survival Path Versus Dynamic-DeepHit HCC Model
Lujun Shen, Yiquan Jiang, Tao Zhang, Fei Cao, Liangru Ke, Chen Li, Gulijiayina Nuerhashi, Wang Li, Peihong Wu, Chaofeng Li, Qi Zeng, Weijun Fan
Cancer Informatics.2024;[Epub] CrossRef
Construction and validation of a novel signature based on epithelial-mesenchymal transition–related genes to predict prognosis and immunotherapy response in hepatocellular carcinoma by comprehensive analysis of the tumor microenvironment
Biao Gao, Yafei Wang, Shichun Lu
Functional & Integrative Genomics.2023;[Epub] CrossRef
Cellular senescence affects energy metabolism, immune infiltration and immunotherapeutic response in hepatocellular carcinoma
Biao Gao, Yafei Wang, Shichun Lu
Scientific Reports.2023;[Epub] CrossRef

Multiple hepatocyte nuclear factor 1A (HNF1A)-inactivated hepatocellular adenomas arising in a background of congenital hepatic fibrosis: Yangkyu Lee, Hyunjin Park, Kyoungbun Lee, Youngeun Lee, Kiryang Lee, Haeryoung Kim; J Pathol Transl Med. 2021;55(2):154-158. Published online December 23, 2020; DOI: https://doi.org/10.4132/jptm.2020.11.12

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Hepatocellular adenoma: what we know, what we do not know, and why it matters
Paulette Bioulac‐Sage, Annette S H Gouw, Charles Balabaud, Christine Sempoux
Histopathology.2022; 80(6): 878. CrossRef
Hepatocellular adenomas: recent updates
Haeryoung Kim, Young Nyun Park
Journal of Pathology and Translational Medicine.2021; 55(3): 171. CrossRef

Cytomorphological Features of Hyperchromatic Crowded Groups in Liquid-Based Cervicovaginal Cytology: A Single Institutional Experience: Youngeun Lee, Cheol Lee, In Ae Park, Hyoung Jin An, Haeryoung Kim; J Pathol Transl Med. 2019;53(6):393-398. Published online September 16, 2019; DOI: https://doi.org/10.4132/jptm.2019.08.14

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Abstract PDF

Background
Hyperchromatic crowed groups (HCGs) are defined as three-dimensional aggregates of crowded cells with hyperchromatic nuclei, and are frequently encountered in cervicovaginal liquid-based cytology (LBC). Here, we aimed to examine the prevalence of HCGs in cervicovaginal LBC and the cytomorphological characteristics of various epithelial cell clusters presenting as HCGs.
Methods
We first examined the prevalence of HCGs in a “routine cohort” of LBC cytology (n=331), consisting of all cervicovaginal LBCs accessioned over 3 days from outpatient clinics (n=179) and the screening population (n=152). Then we examined a second “high-grade epithelial cell abnormalities (H-ECA) cohort” (n=69) of LBCs diagnosed as high-grade squamous intraepithelial lesion (HSIL), squamous cell carcinoma (SCC), or adenocarcinoma during 1 year.
Results
HCGs was observed in 34.4% of the routine cohort and were significantly more frequent in the epithelial cell abnormality category compared to the non-neoplastic category (p=.003). The majority of HCGs represented atrophy (70%). Of the 69 histologically confirmed H-ECA cases, all contained HCGs. The majority of cases were HSIL (62%), followed by SCC (16%). Individually scattered neoplastic cells outside the HCGs were significantly more frequent in SCCs compared to glandular neoplasia (p=.002). Despite the obscuring thick nature of the HCGs, examining the edges and the different focal planes of the HCGs and the background were helpful in defining the nature of the HCGs.
Conclusions
HCGs were frequently observed in cervicovaginal LBC and were mostly non-neoplastic; however, neoplastic HCGs were mostly high-grade lesions. Being aware of the cytomorphological features of different HCGs is important in order to avoid potential false-negative cytology interpretation.

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Can Mitotic Figures in Hyperchromatic Crowded Groups be Cytodiagnostic Criteria for High-Grade Squamous Intra-epithelial Lesions?
Hisae Suzuki, Yumeno Kondo, Chihiro Oda, Takeshi Nishikawa, Mao Takeuchi, Shigenobu Tatsumi, Sho Hosokawa, Satoshi Irino, Tomoko Uchiyama, Tomomi Fujii, Yoshiaki Norimatsu
Journal of Cytology.2024; 41(2): 116. CrossRef
Quantitative Structural Analysis of Hyperchromatic Crowded Cell Groups in Cervical Cytology: Overcoming Diagnostic Pitfalls
Shinichi Tanaka, Tamami Yamamoto, Norihiro Teramoto
Cancers.2024; 16(24): 4258. CrossRef
Atypical glandular cells (AGC): Cytology of glandular lesions of the uterine cervix
Mir Yousufuddin Ali Khan, Sudeshna Bandyopadhyay, Ahmed Alrajjal, Moumita Saha Roy Choudhury, Rouba Ali-Fehmi, Vinod B. Shidham
Cytojournal.2022; 19: 31. CrossRef
Cytopathologic features of human papillomavirus–independent, gastric-type endocervical adenocarcinoma
Min-Kyung Yeo, Go Eun Bae, Dong-Hyun Kim, In-Ock Seong, Kwang-Sun Suh
Journal of Pathology and Translational Medicine.2022; 56(5): 260. CrossRef
The association of atypical squamous cells, cannot exclude a high grade squamous intraepithelial lesion, hyperchromatic crowded groups and high grade squamous intraepithelial lesions involving endocervical glands
Suzanne M. Selvaggi
Diagnostic Cytopathology.2021; 49(9): 1008. CrossRef

Liquid-Based Cytology Features of Papillary Squamotransitional Cell Carcinoma of the Uterine Cervix: Yangkyu Lee, Younghwa Choi, Kiryang Lee, Youngeun Lee, Hyojin Kim, Ji-Young Choe, Hye Seung Lee, Yong Beom Kim, Haeryoung Kim; J Pathol Transl Med. 2019;53(5):341-344. Published online June 24, 2019; DOI: https://doi.org/10.4132/jptm.2019.06.05

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Local and Metastatic Relapses in a Young Woman with Papillary Squamous Cell Carcinoma of the Uterine Cervix
Ha Young Woo, Hyun-Soo Kim
Diagnostics.2022; 12(3): 599. CrossRef

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