Journal of Pathology and Translational Medicine

Hye Won Lee

7 Articles

Inflammatory bowel disease–associated intestinal fibrosis: Ji Min Park, Jeongseok Kim, Yoo Jin Lee, Sung Uk Bae, Hye Won Lee; J Pathol Transl Med. 2023;57(1):60-66. Published online January 10, 2023; DOI: https://doi.org/10.4132/jptm.2022.11.02

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Fibrosis is characterized by a proliferation of fibroblasts and excessive extracellular matrix following chronic inflammation, and this replacement of organ tissue with fibrotic tissue causes a loss of function. Inflammatory bowel disease (IBD) is a chronic inflammation of the gastrointestinal tract, and intestinal fibrosis is common in IBD patients, resulting in several complications that require surgery, such as a stricture or penetration. This review describes the pathogenesis and various factors involved in intestinal fibrosis in IBD, including cytokines, growth factors, epithelial-mesenchymal and endothelial-mesenchymal transitions, and gut microbiota. Furthermore, histopathologic findings and scoring systems used for stenosis in IBD are discussed, and differences in the fibrosis patterns of ulcerative colitis and Crohn’s disease are compared. Biomarkers and therapeutic agents targeting intestinal fibrosis are briefly mentioned at the end.

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Pathways Affected by Falcarinol-Type Polyacetylenes and Implications for Their Anti-Inflammatory Function and Potential in Cancer Chemoprevention
Ruyuf Alfurayhi, Lei Huang, Kirsten Brandt
Foods.2023; 12(6): 1192. CrossRef

Association of PTTG1 expression with invasiveness of non-functioning pituitary adenomas: Su Jung Kum, Hye Won Lee, Soon Gu Kim, Hyungsik Park, Ilseon Hwang, Sang Pyo Kim; J Pathol Transl Med. 2022;56(1):22-31. Published online October 15, 2021; DOI: https://doi.org/10.4132/jptm.2021.08.31

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Abstract PDF

Background
Pituitary tumor transforming gene 1 (PTTG1), paired-like homeodomain 2 (PITX2), and galectin-3 have been widely studied as predictive biomarkers for various tumors and are involved in tumorigenesis and tumor progression. We evaluated the usefulness of PTTG1, PITX2, and galectin-3 as predictive biomarkers for invasive non-functioning pituitary adenomas (NFPAs) by determining the relationship between the expressions of these three proteins and the invasiveness of the NFPAs. We also investigated whether PTTG1, E-cadherin, and Ki-67, which are known to be related to each other, show a correlation with NFPA features.
Methods
A retrospective study was conducted on 87 patients with NPFAs who underwent surgical removal. The NFPAs were classified into three groups based on magnetic resonance imaging findings of suprasellar extension and cavernous sinus invasion. Immunohistochemical staining for PTTG1, PITX2, galectin-3, E-cadherin, and Ki-67 was performed on tissue microarrays.
Results
PTTG1 expression showed a statistically significant correlation with the invasiveness of NFPAs, whereas PITX2 and galectin-3 did not have a relationship with the invasiveness of NFPAs. Moreover, there was no association among PTTG1, E-cadherin, and Ki-67 expression.
Conclusions
PTTG1 has the potential to serve as a predictive biomarker for invasive NFPA. Furthermore, this study may serve as a reference for the development of PTTG1-targeted therapeutic agents.

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Neoplasms and tumor-like lesions of the sellar region: imaging findings with correlation to pathology and 2021 WHO classification
Lorenzo Ugga, Raduan Ahmed Franca, Alessandra Scaravilli, Domenico Solari, Sirio Cocozza, Fabio Tortora, Luigi Maria Cavallo, Marialaura Del Basso De Caro, Andrea Elefante
Neuroradiology.2023;[Epub] CrossRef
Expression and clinical significance of Cathepsin K and MMPs in invasive non-functioning pituitary adenomas
Hongyan Liu, Saichun Zhang, Ting Wu, Zhaohui Lv, Jianming Ba, Weijun Gu, Yiming Mu
Frontiers in Oncology.2022;[Epub] CrossRef

Polo-like kinase 4 as a potential predictive biomarker of chemoradioresistance in locally advanced rectal cancer: Hyunseung Oh, Soon Gu Kim, Sung Uk Bae, Sang Jun Byun, Shin Kim, Jae-Ho Lee, Ilseon Hwang, Sun Young Kwon, Hye Won Lee; J Pathol Transl Med. 2022;56(1):40-47. Published online November 16, 2021; DOI: https://doi.org/10.4132/jptm.2021.10.07

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Abstract PDF Supplementary Material: Background
Polo-like kinase 4 (PLK4) is a serine/threonine protein kinase located in the centriole of the chromosome during the cell cycle. PLK4 overexpression has been described in a variety of many common human epithelial tumors. Conversely, PLK4 acts as a haploinsufficient tumor suppressor in some situations, highlighting the importance of strict regulation of PLK4 expression, activity, and function. Meanwhile, the importance of chemoradiation resistance in rectal cancer is being emphasized more than ever. We aimed to analyze PLK4 expression and the tumor regression grade (TRG) in patients with rectal cancer, treated with chemoradiotherapy (CRT).
Methods
A retrospective study was conducted on 102 patients with rectal cancer who received preoperative CRT. Immunohistochemistry for PLK4 in paraffin-embedded tissue was performed from the biopsy and surgical specimens.
Results
We found significant association between high expression of PLK4 and poor response to neoadjuvant CRT (according to both Mandard and The Korean Society of Pathologists TRG systems) in the pre-CRT specimens. Other clinicopathologic parameters did not reveal any correlation with PLK4 expression.
Conclusions
This study revealed an association between high expression of PLK4 in the pre-CRT specimens and TRG. Our results indicated that PLK4 could potentially be a new predictor for CRT effect in patients with rectal cancer.

Causes of necrotic features in fine-needle aspirates from cervical lymph nodes: Young Jin Seo, Hyeongchan Shin, Hye Won Lee, Hye Ra Jung; J Pathol Transl Med. 2021;55(1):60-67. Published online November 27, 2020; DOI: https://doi.org/10.4132/jptm.2020.09.28

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Abstract PDF

Background
Lymph node fine-needle aspiration (LN FNA) cytology indicates necrosis in various diseases. Dominant necrotic features make the diagnosis of underlying conditions very difficult.
Methods
We retrospectively reviewed 460 patients who underwent cervical LN aspiration cytology that revealed necrotic findings at Keimyung University Dongsan Hospital in Daegu, Korea, from 2003–2017. Each specimen was evaluated and analyzed in association with the clinical findings, biopsy findings, and/or other ancillary tests, including acid-fast bacilli staining and molecular testing for Mycobacterium tuberculosis.
Results
When necrotic features were noted upon cervical LN FNA cytology, the most common pathologic LN FNA category was necrosis alone (31.5%). The second most common category was granulomatous inflammation (31.3%), followed by Kikuchi disease (20.0%) and malignant neoplasm (8.7%). In cases where the cervical LN FNA revealed necrosis alone, the most common final diagnosis was tuberculosis. In young patients, Kikuchi disease should be considered as one cervical LN FNA category, while metastatic carcinoma should be suspected in older patients.
Conclusions
Even when necrosis alone is observed in LN FNA cytology, it is important to determine the cause through further evaluation.

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Impact of HPV status in T1–2 oropharyngeal squamous cell carcinoma with bulky N3 nodes: a multicenter GETTEC study
Charles Hurel, Florent Carsuzaa, Julia Salleron, Philippe Gorphe, Christian Righini, Maximilien Rogé, Erwan de Mones, Sylvain Morinière, Sébastien Vergez, Juliette Thariat, Xavier Dufour
European Archives of Oto-Rhino-Laryngology.2023; 280(2): 847. CrossRef

Amoebic Encephalitis Caused by Balamuthia mandrillaris: Su Jung Kum, Hye Won Lee, Hye Ra Jung, Misun Choe, Sang Pyo Kim; J Pathol Transl Med. 2019;53(5):327-331. Published online May 24, 2019; DOI: https://doi.org/10.4132/jptm.2019.05.14

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We present the case of a 71-year-old man who was diagnosed with amoebic encephalitis caused by Balamuthia mandrillaris. He had rheumatic arthritis for 30 years and had undergone continuous treatment with immunosuppressants. First, he complained of partial spasm from the left thigh to the left upper limb. Magnetic resonance imaging revealed multifocal enhancing nodules in the cortical and subcortical area of both cerebral hemispheres, which were suggestive of brain metastases. However, the patient developed fever with stuporous mentality and an open biopsy was performed immediately. Microscopically, numerous amoebic trophozoites, measuring 20 to 25 µm in size, with nuclei containing one to four nucleoli and some scattered cysts having a double-layered wall were noted in the background of hemorrhagic necrosis. Based on the microscopic findings, amoebic encephalitis caused by Balamuthia mandrillaris was diagnosed. The patient died on the 10th day after being admitted at the hospital. The diagnosis of amoebic encephalitis in the early stage is difficult for clinicians. Moreover, most cases undergo rapid deterioration, resulting in fatal consequences. In this report, we present the first case of B. mandrillaris amoebic encephalitis with fatal progression in a Korean patient.

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Encephalomyelomeningitis Caused by Balamuthia mandrillaris: A Case Report and Literature Review
XueMei Fan, TianWen Chen, Hui Yang, Yue Gao, Yan Chen
Infection and Drug Resistance.2023; Volume 16: 727. CrossRef
Diagnosis of Balamuthia mandrillaris Encephalitis by Thymine–Adenine Cloning Using Universal Eukaryotic Primers
Ju Yeong Kim, Myung-Hee Yi, Myungjun Kim, Joon-Sup Yeom, Hyun Dong Yoo, Seong Min Kim, Tai-Soon Yong
Annals of Laboratory Medicine.2022; 42(2): 196. CrossRef
Facial Balamuthia mandrillaris infection with neurological involvement in an immunocompetent child
Zhen Zhang, Jianying Liang, Ruoqu Wei, Xiaobo Feng, Lei Wang, Liuhui Wang, Piaoping Zhao, Hong Yu, Yan Gu, Zhirong Yao
The Lancet Infectious Diseases.2022; 22(3): e93. CrossRef
Subacute Balamuthia mandrillaris encephalitis in an immunocompetent patient diagnosed by next-generation sequencing
Changbo Xu, Xiaoyan Wu, Miaoqin Tan, Dongmei Wang, Shengnan Wang, Yongming Wu
Journal of International Medical Research.2022; 50(5): 030006052210932. CrossRef
Distribution and Current State of Molecular Genetic Characterization in Pathogenic Free-Living Amoebae
Alejandro Otero-Ruiz, Leobardo Daniel Gonzalez-Zuñiga, Libia Zulema Rodriguez-Anaya, Luis Fernando Lares-Jiménez, Jose Reyes Gonzalez-Galaviz, Fernando Lares-Villa
Pathogens.2022; 11(10): 1199. CrossRef
Fulminant Disseminating Fatal Granulomatous Amebic Encephalitis: The First Case Report in an Immunocompetent Patient in South Korea
Ju Yeon Lee, In Kyu Yu, Seong Min Kim, Joo Heon Kim, Ha Youn Kim
Yonsei Medical Journal.2021; 62(6): 563. CrossRef
A Japanese case of amoebic meningoencephalitis initially diagnosed by cerebrospinal fluid cytology
Ryogo Aoki, Toshimasa Sakakima, Asuka Ohashi, Riyoko Niwa, Masashi Matsuyama, Fumimasa Etori, Naoki Watanabe, Kenji Yagita, Takuji Tanaka
Clinical Case Reports.2020; 8(9): 1728. CrossRef
Balamuthia mandrillaris infection in China: a retrospective report of 28 cases
Lei Wang, Wenjing Cheng, Bing Li, Zhe Jian, Xianlong Qi, Dongjie Sun, Jian Gao, Xuetao Lu, Yi Yang, Kun Lin, Chuanlong Lu, Jiaxi Chen, Chunying Li, Gang Wang, Tianwen Gao
Emerging Microbes & Infections.2020; 9(1): 2348. CrossRef
Methotrexate/nonsteroidal anti-inflammatory drugs/steroids

Reactions Weekly.2019; 1775(1): 307. CrossRef
Identification of plicamycin, TG02, panobinostat, lestaurtinib, and GDC-0084 as promising compounds for the treatment of central nervous system infections caused by the free-living amebae Naegleria, Acanthamoeba and Balamuthia
Monica M. Kangussu-Marcolino, Gretchen M. Ehrenkaufer, Emily Chen, Anjan Debnath, Upinder Singh
International Journal for Parasitology: Drugs and Drug Resistance.2019; 11: 80. CrossRef

Bile Granuloma Mimicking Peritoneal Seeding: A Case Report: Hasong Jeong, Hye Won Lee, Hye Ra Jung, Ilseon Hwang, Sun Young Kwon, Yu Na Kang, Sang Pyo Kim, Misun Choe; J Pathol Transl Med. 2018;52(5):339-343. Published online July 16, 2018; DOI: https://doi.org/10.4132/jptm.2018.06.02

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Laparoscopic cholecystectomy is a widely used treatment method for most cholelithiasis and is a relatively safe procedure. Foreign body granulomatous reaction to bile or gallstone spillage during laparoscopic cholecystectomy has rarely been reported. We report a case of bile granuloma after laparoscopic cholecystectomy, which mimicked peritoneal seeding. A 59-year-old Korean man presented with right upper quadrant pain. He underwent laparoscopic cholecystectomy for acute cholecystitis with cholelithiasis. Pathologic examination revealed an incidental adenocarcinoma invading the lamina propria with acute cholecystitis and cholelithiasis. After 3 months, follow-up abdominal computed tomography revealed a subhepatic nodule, which showed hypermetabolism on positron emission tomography–computed tomography. Suspecting localized peritoneal seeding, wedge resection of the liver, wedge resection of the transverse colon, and omentectomy were performed. Pathologic examination of the resected specimens revealed multiple bile granulomas. Awareness of bile granuloma mimicking malignancy is noteworthy for patient management to reduce unnecessary procedure during postoperative surveillance.

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Foreign body reaction mimicking local recurrence from polyactide adhesion barrier film after laparoscopic colorectal cancer surgery
Tien-Chan Hsieh, Chao-Wen Hsu
Medicine.2022; 101(5): e28692. CrossRef
Spilled gallstones after laparoscopic cholecystectomy: a systematic review
Sajad Ahmad Salati, Mohammed Alfehaid, Saleh Alsuwaydani, Lamees AlSulaim
Polish Journal of Surgery.2022; 94(4): 1. CrossRef
Foreign body granulomas mimic peritoneal dissemination caused by incarcerated femoral hernia perforation: A case report
Shinpei Ogino, Tatsuya Matsumoto, Yosuke Kamada, Noriaki Koizumi, Hiroshi Fujiki, Kenji Nakamura, Takeshi Yamano, Chouhei Sakakura
World Journal of Clinical Oncology.2021; 12(11): 1083. CrossRef

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