Journal of Pathology and Translational Medicine

Reviews

Molecular biomarker testing for non–small cell lung cancer: consensus statement of the Korean Cardiopulmonary Pathology Study Group: Sunhee Chang, Hyo Sup Shim, Tae Jung Kim, Yoon-La Choi, Wan Seop Kim, Dong Hoon Shin, Lucia Kim, Heae Surng Park, Geon Kook Lee, Chang Hun Lee; J Pathol Transl Med. 2021;55(3):181-191. Published online May 11, 2021; DOI: https://doi.org/10.4132/jptm.2021.03.23

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Molecular biomarker testing is the standard of care for non–small cell lung cancer (NSCLC) patients. In 2017, the Korean Cardiopulmonary Pathology Study Group and the Korean Molecular Pathology Study Group co-published a molecular testing guideline which contained almost all known genetic changes that aid in treatment decisions or predict prognosis in patients with NSCLC. Since then there have been significant changes in targeted therapies as well as molecular testing including newly approved targeted drugs and liquid biopsy. In order to reflect these changes, the Korean Cardiopulmonary Pathology Study Group developed a consensus statement on molecular biomarker testing. This consensus statement was crafted to provide guidance on what genes should be tested, as well as methodology, samples, patient selection, reporting and quality control.

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FACILITATE: A real-world, multicenter, prospective study investigating the utility of a rapid, fully automated real-time PCR assay versus local reference methods for detecting epidermal growth factor receptor variants in NSCLC
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Landscape of EGFR mutations in lung adenocarcinoma: a single institute experience with comparison of PANAMutyper testing and targeted next-generation sequencing
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Biomarker testing of cytology specimens in personalized medicine for lung cancer patients
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Usefulness of BRAF VE1 immunohistochemistry in non–small cell lung cancers: a multi-institutional study by 15 pathologists in Korea
Sunhee Chang, Yoon-La Choi, Hyo Sup Shim, Geon Kook Lee, Seung Yeon Ha
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Provisional Guideline Recommendation for EGFR Gene Mutation Testing in Liquid Samples of Lung Cancer Patients: A Proposal by the Korean Cardiopulmonary Pathology Study Group: Dong Hoon Shin, Hyo Sup Shim, Tae Jung Kim, Heae Surng Park, Yun La Choi, Wan Seop Kim, Lucia Kim, Sun Hee Chang, Joon Seon Song, Hyo jin Kim, Jung Ho Han, Chang Hun Lee, Geon Kook Lee, Se Jin Jang; J Pathol Transl Med. 2019;53(3):153-158. Published online February 28, 2019; DOI: https://doi.org/10.4132/jptm.2019.02.22

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Abstract PDF

Liquid biopsy for detection of mutation from circulating tumor DNA is a new technology which is attractive in that it is non-invasive. Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKI) is an effective first line drug for advanced non-small cell lung cancer patients who harbor activating EGFR mutation. During the course of treatment, resistance against TKI arises which can be contributed to EGFR T790M mutation in about 50–60% of patients. Third generation TKI may overcome the resistance. In patients who cannot undergo tissue biopsy due to variable reasons, liquid biopsy is an excellent alternative for the detection of EGFR T790M mutation. However, this relatively novel method requires standardization and vigorous quality insurance. Thus, a standard set of guideline recommendations for liquid biopsy for EGFR mutation testing suitable for the Korean medical community is necessary. In this article, we propose a set of provisional guideline recommendations that was discussed and approved by the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists.

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Molecular biomarker testing for non–small cell lung cancer: consensus statement of the Korean Cardiopulmonary Pathology Study Group
Sunhee Chang, Hyo Sup Shim, Tae Jung Kim, Yoon-La Choi, Wan Seop Kim, Dong Hoon Shin, Lucia Kim, Heae Surng Park, Geon Kook Lee, Chang Hun Lee
Journal of Pathology and Translational Medicine.2021; 55(3): 181. CrossRef
Current status and future perspectives of liquid biopsy in non-small cell lung cancer
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Journal of Pathology and Translational Medicine.2020; 54(3): 204. CrossRef
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Original Article

WITHDRAWN:A Clinicopathologic Study of 220 Cases of Pulmonary Sclerosing Pneumocytoma in Korea: A Nationwide Survey: Myunghee Kang, Seung Yeon Ha, Joung Ho Han, Mee Sook Roh, Se Jin Jang, Hee Jin Lee, Heae Surng Park, Geon Kook Lee, Kyo Young Lee, Jin-Haeng Chung, Yoo Duk Choi, Chang Hun Lee, Lucia Kim, Myoung Ja Chung, Soon Hee Jung, Gou Young Kim, Wan-Seop Kim; Received April 4, 2018 Accepted July 9, 2018 Published online July 16, 2018; DOI: https://doi.org/10.4132/jptm.2018.07.10 [Accepted]

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Review

Molecular Testing of Lung Cancers: Hyo Sup Shim, Yoon-La Choi, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Mee Sook Roh, Tae-Jung Kim, Seung Yeon Ha, Jin-Haeng Chung, Se Jin Jang, Geon Kook Lee; J Pathol Transl Med. 2017;51(3):242-254. Published online April 21, 2017; DOI: https://doi.org/10.4132/jptm.2017.04.10

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Abstract PDF

Targeted therapies guided by molecular diagnostics have become a standard treatment of lung cancer. Epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) rearrangements are currently used as the best predictive biomarkers for EGFR tyrosine kinase inhibitors and ALK inhibitors, respectively. Besides EGFR and ALK, the list of druggable genetic alterations has been growing, including ROS1 rearrangements, RET rearrangements, and MET alterations. In this situation, pathologists should carefully manage clinical samples for molecular testing and should do their best to quickly and accurately identify patients who will benefit from precision therapeutics. Here, we grouped molecular biomarkers of lung cancers into three categories—mutations, gene rearrangements, and amplifications—and propose expanded guidelines on molecular testing of lung cancers.

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Cost-effectiveness of next-generation sequencing for advanced EGFR/ALK-negative non-small cell lung cancer
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Landscape of EGFR mutations in lung adenocarcinoma: a single institute experience with comparison of PANAMutyper testing and targeted next-generation sequencing
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Molecular biomarker testing for non–small cell lung cancer: consensus statement of the Korean Cardiopulmonary Pathology Study Group
Sunhee Chang, Hyo Sup Shim, Tae Jung Kim, Yoon-La Choi, Wan Seop Kim, Dong Hoon Shin, Lucia Kim, Heae Surng Park, Geon Kook Lee, Chang Hun Lee
Journal of Pathology and Translational Medicine.2021; 55(3): 181. CrossRef
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The expanding capability and clinical relevance of molecular diagnostic technology to identify and evaluate EGFR mutations in advanced/metastatic NSCLC
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Testing for EGFR Mutations and ALK Rearrangements in Advanced Non-Small-Cell Lung Cancer: Considerations for Countries in Emerging Markets
Mercedes L Dalurzo, Alejandro Avilés-Salas, Fernando Augusto Soares, Yingyong Hou, Yuan Li, Anna Stroganova, Büge Öz, Arif Abdillah, Hui Wan, Yoon-La Choi
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Clinical Lung Cancer.2020; 21(5): 395. CrossRef
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Original Articles

Prognostic Implication of Semi-quantitative Immunohistochemical Assessment of CD20 Expression in Diffuse Large B-Cell Lymphoma: Chang Hwan Choi, Young Hoon Park, Joo Han Lim, Suk Jin Choi, Lucia Kim, In Suh Park, Jee Young Han, Joon Mee Kim, Young Chae Chu; J Pathol Transl Med. 2016;50(2):96-103. Published online February 15, 2016; DOI: https://doi.org/10.4132/jptm.2016.01.12

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Abstract PDF

Background
Immunohistochemical demonstration of CD20 in diffuse large B-cell lymphoma (DLBCL) is prerequisite not only for the diagnosis but also for assigning patients to rituximab-containing chemotherapy. However, little is known about the impact of abundance of CD20 expression assessed by immunohistochemistry on the clinical outcome of DLBCL. We performed a semi-quantitative immunohistochemical analysis of CD20 expression in DLBCL to examine the prognostic implication of the level of CD20 expression. Methods: Pre-treatment diagnostic tissue samples from 48 DLBCL patients who were treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) regimen were represented in a tissue microarray and immunostained for CD20. The relative abundance of CD20 expression was semi-quantitatively scored using a web-based ImmunoMembrane plug-in. Receiver operating characteristic curve analysis was used to determine a prognostically relevant cut-off score in order to dichotomize the patients into CD20-high versus CD20-low groups. Results: The levels of CD20 expression were heterogeneous among the patients, with a wide and linear distribution of scores. Patients in CD20-low group showed significantly poor clinical outcome. Conclusions: The levels of CD20 expression in DLBCL are heterogeneous among the patients with DLBCL. A subgroup of the patients with CD20 expression levels below the cut-off score showed poor clinical outcome.

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Analysis of Mutations in Epidermal Growth Factor Receptor Gene in Korean Patients with Non-small Cell Lung Cancer: Summary of a Nationwide Survey: Sang Hwa Lee, Wan Seop Kim, Yoo Duk Choi, Jeong Wook Seo, Joung Ho Han, Mi Jin Kim, Lucia Kim, Geon Kook Lee, Chang Hun Lee, Mee Hye Oh, Gou Young Kim, Sun Hee Sung, Kyo Young Lee, Sun Hee Chang, Mee Sook Rho, Han Kyeom Kim, Soon Hee Jung, Se Jin Jang, The Cardiopulmonary Pathology Study Group of Korean Society of Pathologists; J Pathol Transl Med. 2015;49(6):481-488. Published online October 13, 2015; DOI: https://doi.org/10.4132/jptm.2015.09.14

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Abstract PDF

Background
Analysis of mutations in the epidermal growth factor receptor gene (EGFR) is important for predicting response to EGFR tyrosine kinase inhibitors. The overall rate of EGFR mutations in Korean patients is variable. To obtain comprehensive data on the status of EGFR mutations in Korean patients with lung cancer, the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists initiated a nationwide survey. Methods: We obtained 1,753 reports on EGFR mutations in patients with lung cancer from 15 hospitals between January and December 2009. We compared EGFR mutations with patient age, sex, history of smoking, histologic diagnosis, specimen type, procurement site, tumor cell dissection, and laboratory status. Results: The overall EGFR mutation rate was 34.3% in patients with non-small cell lung cancer (NSCLC) and 43.3% in patients with adenocarcinoma. EGFR mutation rate was significantly higher in women, never smokers, patients with adenocarcinoma, and patients who had undergone excisional biopsy. EGFR mutation rates did not differ with respect to patient age or procurement site among patients with NSCLC. Conclusions: EGFR mutation rates and statuses were similar to those in published data from other East Asian countries.

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Brief Case Report

Myoepithelial Carcinoma of Soft Tissue: A Case Report and Review of the Literature: Chang Hwan Choi, Young Chae Chu, Lucia Kim, Suk Jin Choi, In Suh Park, Jee Young Han, Joon Mee Kim; Korean J Pathol. 2014;48(6):413-417. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.413

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Original Articles

Preparation of Compact Agarose Cell Blocks from the Residues of Liquid-Based Cytology Samples: Suk Jin Choi, Yeon Il Choi, Lucia Kim, In Suh Park, Jee Young Han, Joon Mee Kim, Young Chae Chu; Korean J Pathol. 2014;48(5):351-360. Published online October 27, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.5.351

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Abstract PDF

Background: Inevitable loss of diagnostic material should be minimized during cell block preparation. We introduce a modified agarose cell block technique that enables the synthesis of compact cell blocks by using the entirety of a cell pellet without the loss of diagnostic material during cell block preparations. The feasibility of this technique is illustrated by high-throughput immunocytochemistry using high-density cell block microarray (CMA). Methods: The cell pellets of Sure- Path residues were pre-embedded in ultra-low gelling temperature agarose gel and re-embedded in standard agarose gel. They were fixed, processed, and embedded in paraffin using the same method as tissue sample processing. The resulting agarose cell blocks were trimmed and represented on a CMA for high-throughput analysis using immunocytochemical staining. Results: The SurePath residues were effectively and entirely incorporated into compact agarose cell buttons and embedded in paraffin. Sections of the agarose cell blocks revealed cellularities that correlated well with corresponding SurePath smears and had immunocytochemical features that were sufficient for diagnosis of difficult cases. Conclusions: This agarose-based compact cell block technique enables preparation of high-quality cell blocks by using up the residual SurePath samples without loss of diagnostic material during cell block preparation.

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The Clinicopathological Significance of Epithelial Mesenchymal Transition Associated Protein Expression in Head and Neck Squamous Cell Carcinoma: Kyu Ho Kim, Lucia Kim, Suk Jin Choi, Jee Young Han, Joon Mee Kim, Young Chae Chu, Young-Mo Kim, In Suh Park, Joo Han Lim; Korean J Pathol. 2014;48(4):263-269. Published online August 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.4.263

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Abstract PDF

Background

Epithelial mesenchymal transition (EMT) has an important role in invasion and metastasis of tumor cells. The purpose of this study was to evaluate the roles of EMT-associated proteins on progression and metastasis as a prognostic/predictive factor in curatively-resected (R0) head and neck squamous cell carcinoma (HNSCC).

Methods

A total of 118 patients who received curative surgery for HNSCC at Inha University Hospital between January 1996 and December 2011 were included. We used protein immunohistochemistry to evaluate the expression of E-cadherin, vimentin, and EZH2 on tissue microarrays. Also, we reviewed all medical records and analyzed the relationship between the expression of EMT-associated proteins and prognosis.

Results

The E-cadherin-negative group showed more moderate/poor differentiation of cancer cell type than the higher E-cadherin-expressing group (p=.016) and high EZH2 expression was significantly correlated with nodal metastasis (p=.012). Our results demonstrate a significant association between high expression of EZH2 and vimentin and presence of distant progression (p=.026). However, expression of E-cadherin, vimentin, and EZH2 was not significantly associated with overall survival.

Conclusions

These findings suggest that an EMT-associated protein expression profile is correlated with aggressiveness of disease and prognosis, and could be a useful marker for determination of additional treatment in curatively-resected HNSCC patients.

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Review

Guideline Recommendations for Testing of ALK Gene Rearrangement in Lung Cancer: A Proposal of the Korean Cardiopulmonary Pathology Study Group: Hyojin Kim, Hyo Sup Shim, Lucia Kim, Tae-Jung Kim, Kun Young Kwon, Geon Kook Lee, Jin-Haeng Chung; Korean J Pathol. 2014;48(1):1-9. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.1

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Abstract PDF

Rearrangement of anaplastic lymphoma kinase (ALK) gene is the best predictor of response to crizotinib, an ALK tyrosine kinase inhibitor. However, the prevalence of the ALK fusion is low, so accurate patient identification is crucial for successful treatment using ALK inhibitors. Furthermore, most patients with lung cancer present with advanced-stage disease at the time of diagnosis, so it is important for pathologists to detect ALK-rearranged patients while effectively maximizing small biopsy or cytology specimens. In this review, we propose a guideline recommendation for ALK testing approved by the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists.

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Original Articles

Cytological Findings of the Micropapillary Variant of Urothelial Carcinoma: A Comparison with Typical High-Grade Urothelial Carcinoma: Kyu-Ho Kim, Chang-Hwan Choi, Jee-Young Han, Lucia Kim, Suk-Jin Choi, In-Suh Park, Joon-Mee Kim, Young-Chae Chu; Korean J Pathol. 2013;47(4):365-371. Published online August 26, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.365

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Abstract PDF

Background

Micropapillary variant of urothelial carcinoma (MPUC) showed distinct pathologic features and aggressive behavior. The cytologic findings of MPUC are still indistinct. In this study, we evaluated the cytological findings of MPUC compared with those of high-grade urothelial carcinoma (HGUC).

Methods

The voided urine cytology of 8 cases of MPUC and 8 cases of HGUC was reviewed. Following cytological parameters were evaluated: cellularity, background, number of small, tight papillary clusters, small acinar structure, scattered single cells, cytoplasmic features, nuclear-to-cytoplasmic ratio, nuclear pleomorphism, nuclear membrane irregularity, hyperchromasia, chromatin pattern and nucleoli.

Results

Compared to that of HGUC, cytology of MPUC showed large numbers of small, tight papillary clusters, small acinar structure, few numbers of single cells, and hyperchromatic nuclei. Other parameters were similar between the two groups; both groups showed similar cellularity, dense or vacuolated cytoplasm, moderate to severe nuclear pleomorphism, irregular nuclear membrane, coarse granular chromatin, and small and prominent nucleoli.

Conclusions

The urine cytology of MPUCs showed smaller and tighter papillary cell clusters, more small acinar structures, fewer numbers of scattered single cells, and more hyperchromatic nuclei than that of HGUC. These features can help to distinguish MPUC and HGUC and offer an early cytological diagnosis of MPUC.

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Akiko KAGOTANI, Mitsuaki ISHIDA, Muneo IWAI, Nozomi IWAMOTO, Nozomi KASUGA, Yuji HAYASHI, Yoshimitsu MIYAHIRA, Ryoji KUSHIMA
The Journal of the Japanese Society of Clinical Cytology.2016; 55(3): 165. CrossRef

In-house Manual Construction of High-Density and High-Quality Tissue Microarrays by Using Homemade Recipient Agarose-Paraffin Blocks: Kyu Ho Kim, Suk Jin Choi, Yeon Il Choi, Lucia Kim, In Suh Park, Jee Young Han, Joon Mee Kim, Young Chae Chu; Korean J Pathol. 2013;47(3):238-244. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.238

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Abstract PDF

Background

Self-made tissue punches can be effectively used to punch holes in blank recipient paraffin blocks and extract tissue cores from the donor paraffin blocks for the low-cost construction of tissue microarrays (TMAs). However, variable degrees of section distortion and loss of the tissue cores can occurs during cutting of the TMAs, posing technical problems for in-house manual construction of high-density TMAs. We aimed to update the method for in-house manual TMA construction to improve the quality of high-density TMAs.

Methods

Blocks of agarose gel were subjected to the standard tissue processing and embedding procedure to prepare recipient agarose-paraffin blocks. The self-made tissue punches and recipient agarose-paraffin blocks were used to construct TMAs, which were completely melted and re-embedded in paraffin to make finished TMA blocks.

Results

The donor tissue cores were completely integrated into the surrounding paraffin of the recipient blocks. This method enabled us to construct high-density TMAs with significantly less section distortion or loss of tissue cores during microtomy.

Conclusions

Simple and inexpensive construction of high-density and high-quality TMAs can be warranted by using paraffinized agarose gels as recipient blocks.

Citations

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An introduction of an easy-operating and economical technique for tissue microarray preparation
Yi-Jing Chen, Chun-Mei Yang, Jiang-Sheng Huang, Ping Wang, Yan-Hua Lv, Cheng Tang, Wei Deng
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Tammy Sexton, Gregory L. Kucera, Edward A. Levine, Kounosuke Watabe, Stacey S. O'Neill
Biopreservation and Biobanking.2019; 17(5): 452. CrossRef
Monocarboxylate transporters MCT1 and MCT4 are independent prognostic biomarkers for the survival of patients with clear cell renal cell carcinoma and those receiving therapy targeting angiogenesis
Yan-Wei Cao, Yong Liu, Zhen Dong, Lei Guo, En-Hao Kang, Yong-Hua Wang, Wei Zhang, Hai-Tao Niu
Urologic Oncology: Seminars and Original Investigations.2018; 36(6): 311.e15. CrossRef
Platelet-derived growth factor receptor α in hepatocellular carcinoma is a prognostic marker independent of underlying liver cirrhosis
Jung-Hwan Yu, Joon Mee Kim, Ja Kyung Kim, Suk Jin Choi, Kwan Sik Lee, Jin-Woo Lee, Hye Young Chang, Jung Il Lee
Oncotarget.2017; 8(24): 39534. CrossRef
Prognostic Implication of Semi-quantitative Immunohistochemical Assessment of CD20 Expression in Diffuse Large B-Cell Lymphoma
Chang Hwan Choi, Young Hoon Park, Joo Han Lim, Suk Jin Choi, Lucia Kim, In Suh Park, Jee Young Han, Joon Mee Kim, Young Chae Chu
Journal of Pathology and Translational Medicine.2016; 50(2): 96. CrossRef
High Quality Tissue Miniarray Technique Using a Conventional TV/Radio Telescopic Antenna
Mohamed A. Elkablawy, Abdulkader M. Albasri
Asian Pacific Journal of Cancer Prevention.2015; 16(3): 1129. CrossRef

No Detection of Simian Virus 40 in Malignant Mesothelioma in Korea: Minseob Eom, Jamshid Abdul-Ghafar, Sun-Mi Park, Joung Ho Han, Soon Won Hong, Kun Young Kwon, Eun Suk Ko, Lucia Kim, Wan Seop Kim, Seung Yeon Ha, Kyo Young Lee, Chang Hun Lee, Hye Kyoung Yoon, Yoo Duk Choi, Myoung Ja Chung, Soon-Hee Jung; Korean J Pathol. 2013;47(2):124-129. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.124

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Abstract PDF

Background

Simian virus 40 (SV40), a polyomavirus, was discovered as a contaminant of a human polio vaccine in the 1960s. It is known that malignant mesothelioma (MM) is associated with SV40, and that the virus works as a cofactor to the carcinogenetic effects of asbestos. However, the reports about the correlation between SV40 and MM have not been consistent. The purpose of this study is to identify SV40 in MM tissue in Korea through detection of SV40 protein and DNA.

Methods

We analyzed 62 cases of available paraffin-blocks enrolled through the Korean Malignant Mesothelioma Surveillance System and performed immunohistochemistry for SV40 protein and real-time polymerase chain reaction (PCR) for SV40 DNA.

Results

Of 62 total cases, 40 had disease involving the pleura (64.5%), and 29 (46.8%) were found to be of the epithelioid subtype. Immunostaining demonstrated that all examined tissues were negative for SV40 protein. Sufficient DNA was extracted for real-time PCR analysis from 36 cases. Quantitative PCR of these samples showed no increase in SV40 transcript compared to the negative controls.

Conclusions

SV40 is not associated with the development of MM in Korea.

Citations

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Association Study of Pleural Mesothelioma and Oncogenic Simian Virus 40 in the Crocidolite-Contaminated Area of Dayao County, Yunnan Province, Southwest China
Ru-ai Liu, Bo-yong Wang, Xin Chen, Yuan-qian Pu, Jia-ji Zi, Wen Mei, Ye-pin Zhang, Lu Qiu, Wei Xiong
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Binding of SV40’s Viral Capsid Protein VP1 to Its Glycosphingolipid Receptor GM1 Induces Negative Membrane Curvature: A Molecular Dynamics Study
Raisa Kociurzynski, Sophie D. Beck, Jean-Baptiste Bouhon, Winfried Römer, Volker Knecht
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Estimated future incidence of malignant mesothelioma in South Korea: Projection from 2014 to 2033
Kyeong Min Kwak, Domyung Paek, Seung-sik Hwang, Young-Su Ju, Mark Allen Pershouse
PLOS ONE.2017; 12(8): e0183404. CrossRef
The function, mechanisms, and role of the genes PTEN and TP53 and the effects of asbestos in the development of malignant mesothelioma: a review focused on the genes' molecular mechanisms
Leonardo Vinícius Monteiro de Assis, Mauro César Isoldi
Tumor Biology.2014; 35(2): 889. CrossRef
The role of key genes and pathways involved in the tumorigenesis of Malignant Mesothelioma
Leonardo Vinícius Monteiro de Assis, Jamille Locatelli, Mauro César Isoldi
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer.2014; 1845(2): 232. CrossRef
Pleural Mesothelioma: An Institutional Experience of 66 Cases
Soomin Ahn, In Ho Choi, Joungho Han, Jhingook Kim, Myung-Ju Ahn
Korean Journal of Pathology.2014; 48(2): 91. CrossRef

Review & Perspective

Guideline Recommendations for EGFR Mutation Testing in Lung Cancer: Proposal of the Korean Cardiopulmonary Pathology Study Group: Hyo Sup Shim, Jin-Haeng Chung, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Geon Kook Lee, Soon-Hee Jung, Se Jin Jang; Korean J Pathol. 2013;47(2):100-106. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.100

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Abstract PDF

Mutations of the epidermal growth factor receptor (EGFR) are the strongest predictive factor for response to EGFR tyrosine kinase inhibitors (TKIs), such as gefitinib and erlotinib. EGFR TKIs are approved in Korea as a first-line treatment for lung cancer patients with mutated EGFR. Rapid and accurate EGFR mutation testing is essential for patient selection and establishing targeted therapies with EGFR TKIs. Thus, a standard set of guideline recommendations for EGFR mutation testing suitable for the Korean medical community is necessary. In this article, we propose a set of guideline recommendations for EGFR mutation testing that was discussed and approved by the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists.

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Cancers.2023; 15(10): 2855. CrossRef
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Péter Bayer, Robert A. Gatenby, Patricia H. McDonald, Derek R. Duckett, Kateřina Staňková, Joel S. Brown, Jun Tanimoto
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Molecular biomarker testing for non–small cell lung cancer: consensus statement of the Korean Cardiopulmonary Pathology Study Group
Sunhee Chang, Hyo Sup Shim, Tae Jung Kim, Yoon-La Choi, Wan Seop Kim, Dong Hoon Shin, Lucia Kim, Heae Surng Park, Geon Kook Lee, Chang Hun Lee
Journal of Pathology and Translational Medicine.2021; 55(3): 181. CrossRef
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Justin J Kuhlman, Muhamad Alhaj Moustafa, Liuyan Jiang, Han W Tun
Journal of Blood Medicine.2021; Volume 12: 833. CrossRef
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Hyo Sup Shim, Yoon-La Choi, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Mee Sook Roh, Tae-Jung Kim, Seung Yeon Ha, Jin-Haeng Chung, Se Jin Jang, Geon Kook Lee
Journal of Pathology and Translational Medicine.2017; 51(3): 242. CrossRef
Strategic management of transthoracic needle aspirates for histological subtyping and EGFR testing in patients with peripheral lung cancer: An institutional experience
Choonhee Son, Eun‐Ju Kang, Mee Sook Roh
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Medicine.2015; 94(29): e1209. CrossRef
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Case Study

Peripheral Primitive Neuroectodermal Tumor with Osseous Component of the Small Bowel Mesentery: A Case Study: Joon Mee Kim, Young Chae Chu, Chang Hwan Choi, Lucia Kim, Suk Jin Choi, In Suh Park, Jee Young Han, Kyung Rae Kim, Yoon-La Choi, Taeeun Kim; Korean J Pathol. 2013;47(1):77-81. Published online February 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.1.77

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Abstract PDF

A case of peripheral primitive neuroectodermal tumor of the small bowel mesentery with osseous component is reported. A 23-year-old man was admitted to our hospital because of acute severe abdominal pain. Abdominal computed tomography revealed a large solid and cystic, oval shaped mass, measuring 11.0×6.0 cm in the pelvic cavity. Histologically the resected lesion consisted of sheets of undifferentiated small round cells forming Homer-Wright rosettes and perivascular pseudorosettes, and showed areas of osteoid and bone formation. Immunohistochemical studies revealed that tumor cells expressed positivity against CD99 (MIC2), CD57, neuron-specific enolase, and vimentin. Fluorescence in situ hybridization study revealed Ewing sarcoma breakpoint region 1 (EWSR1) gene rearrangement on chromosome 22q12. To the authors' knowledge this is the first documentation of a peripheral neuroectodermal tumor with osteoid and bone formation of the small bowel mesentery.

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Andrej Kolosov, Audrius Dulskas, Kastytis Pauza, Veslava Selichova, Dmitrij Seinin, Eugenijus Stratilatovas
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Case report and literature review of Ewing's sarcoma in the gastrointestinal tract
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Pediatric Ewing’s Sarcoma/Primitive Neuroectodermal Tumor (ES/PNET) Developed in the Small Intestine: A Case Report
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