Journal of Pathology and Translational Medicine

Original Articles

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

10,302 View
94 Download
19 Web of Science
21 Crossref

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.

Citations

Citations to this article as recorded by

The role of oncogenes and tumor suppressor genes in determining survival rates of lung cancer patients in the population of North Sumatra, Indonesia
Noni Novisari Soeroso, Fannie Rizki Ananda, Johan Samuel Sitanggang, Noverita Sprinse Vinolina
F1000Research.2023; 11: 853. CrossRef
Comprehensive analysis of NGS and ARMS-PCR for detecting EGFR mutations based on 4467 cases of NSCLC patients
Changlong He, Chengcheng Wei, Jun Wen, Shi Chen, Ling Chen, Yue Wu, Yifan Shen, Huili Bai, Yangli Zhang, Xueping Chen, Xiaosong Li
Journal of Cancer Research and Clinical Oncology.2022; 148(2): 321. CrossRef
Unique characteristics of G719X and S768I compound double mutations of epidermal growth factor receptor (EGFR) gene in lung cancer of coal-producing areas of East Yunnan in Southwestern China
Jun-Ling Wang, Yu-Dong Fu, Yan-Hong Gao, Xiu-Ping Li, Qian Xiong, Rui Li, Bo Hou, Ruo-Shan Huang, Jun-Feng Wang, Jian-Kun Zhang, Jia-Ling Lv, Chao Zhang, Hong-Wei Li
Genes and Environment.2022;[Epub] CrossRef
Continuous Vaginal Bleeding Induced By EGFR-TKI in Premenopausal Female Patients With EGFR Mutant NSCLC
Min Yu, Xiaoyu Li, Xueqian Wu, Weiya Wang, Yanying Li, Yan Zhang, Shuang Zhang, Yongsheng Wang
Frontiers in Oncology.2022;[Epub] CrossRef
The role of oncogenes and tumor suppressor genes in determining survival rates of lung cancer patients in the population of North Sumatra, Indonesia
Noni Novisari Soeroso, Fannie Rizki Ananda, Johan Samuel Sitanggang, Noverita Sprinse Vinolina
F1000Research.2022; 11: 853. CrossRef
Adverse Event Profiles of Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors in Adenocarcinoma Lung Patients in North Sumatera Population
Moh. Ramadhani Soeroso, Noni Novisari Soeroso, Setia Putra Tarigan, Elisna Syahruddin
Open Access Macedonian Journal of Medical Sciences.2022; 10(T7): 134. CrossRef
Landscape of EGFR mutations in lung adenocarcinoma: a single institute experience with comparison of PANAMutyper testing and targeted next-generation sequencing
Jeonghyo Lee, Yeon Bi Han, Hyun Jung Kwon, Song Kook Lee, Hyojin Kim, Jin-Haeng Chung
Journal of Pathology and Translational Medicine.2022; 56(5): 249. CrossRef
Traditional Chinese Medicine Syndromes are Associated with Driver Gene Mutations and Clinical Characteristics in Patients with Lung Adenocarcinoma
Jili Yang, Haiyan Lu, Niancai Jing, Bo Wang, Huanyu Guo, Shoukun Sun, Yue Zhang, Chan-Yen Kuo
Evidence-Based Complementary and Alternative Medicine.2022; 2022: 1. CrossRef
Exosome-based detection of EGFR T790M in plasma and pleural fluid of prospectively enrolled non-small cell lung cancer patients after first-line tyrosine kinase inhibitor therapy
Yoonjung Kim, Saeam Shin, Kyung-A Lee
Cancer Cell International.2021;[Epub] CrossRef
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
Osimertinib in Patients with T790M-Positive Advanced Non-small Cell Lung Cancer: Korean Subgroup Analysis from Phase II Studies
Myung-Ju Ahn, Ji-Youn Han, Dong-Wan Kim, Byoung Chul Cho, Jin-Hyoung Kang, Sang-We Kim, James Chih-Hsin Yang, Tetsuya Mitsudomi, Jong Seok Lee
Cancer Research and Treatment.2020; 52(1): 284. CrossRef
Long non-coding RNA ATB promotes human non-small cell lung cancer proliferation and metastasis by suppressing miR-141-3p
Guojie Lu, Yaosen Zhang, Klaus Roemer
PLOS ONE.2020; 15(2): e0229118. CrossRef
Prognostic Role of S100A8 and S100A9 Protein Expressions in Non-small Cell Carcinoma of the Lung
Hyun Min Koh, Hyo Jung An, Gyung Hyuck Ko, Jeong Hee Lee, Jong Sil Lee, Dong Chul Kim, Jung Wook Yang, Min Hye Kim, Sung Hwan Kim, Kyung Nyeo Jeon, Gyeong-Won Lee, Se Min Jang, Dae Hyun Song
Journal of Pathology and Translational Medicine.2019; 53(1): 13. CrossRef
Epidermal growth factor receptor T790M mutations in non-small cell lung cancer (NSCLC) of Yunnan in southwestern China
Yongchun Zhou, Yuhui Ma, Hutao Shi, Yaxi Du, Yunchao Huang
Scientific Reports.2018;[Epub] CrossRef
Does the efficacy of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor differ according to the type of EGFR mutation in non-small cell lung cancer?
Yong Won Choi, Jin-Hyuk Choi
The Korean Journal of Internal Medicine.2017; 32(3): 422. CrossRef
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
Journal of Pathology and Translational Medicine.2017; 51(3): 242. CrossRef
MET Exon 14 Skipping Mutations in Lung Adenocarcinoma: Clinicopathologic Implications and Prognostic Values
Geun Dong Lee, Seung Eun Lee, Doo-Yi Oh, Dan-bi Yu, Hae Min Jeong, Jooseok Kim, Sungyoul Hong, Hun Soon Jung, Ensel Oh, Ji-Young Song, Mi-Sook Lee, Mingi Kim, Kyungsoo Jung, Jhingook Kim, Young Kee Shin, Yoon-La Choi, Hyeong Ryul Kim
Journal of Thoracic Oncology.2017; 12(8): 1233. CrossRef
Epidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer (NSCLC) of Yunnan in southwestern China
Yongchun Zhou, Yanlong Yang, Chenggang Yang, Yunlan Chen, Changshao Yang, Yaxi Du, Guangqiang Zhao, Yinjin Guo, Lianhua Ye, Yunchao Huang
Oncotarget.2017; 8(9): 15023. CrossRef
Detection of EGFR and KRAS Mutation by Pyrosequencing Analysis in Cytologic Samples of Non-Small Cell Lung Cancer
Seung Eun Lee, So-Young Lee, Hyung-Kyu Park, Seo-Young Oh, Hee-Joung Kim, Kye-Young Lee, Wan-Seop Kim
Journal of Korean Medical Science.2016; 31(8): 1224. CrossRef
MassARRAY, pyrosequencing, and PNA clamping for EGFR mutation detection in lung cancer tissue and cytological samples: a multicenter study
Kyueng-Whan Min, Wan-Seop Kim, Se Jin Jang, Yoo Duk Choi, Sunhee Chang, Soon Hee Jung, Lucia Kim, Mee-Sook Roh, Choong Sik Lee, Jung Weon Shim, Mi Jin Kim, Geon Kook Lee
Journal of Cancer Research and Clinical Oncology.2016; 142(10): 2209. CrossRef
Clinicopathologic characteristics of EGFR, KRAS, and ALK alterations in 6,595 lung cancers
Boram Lee, Taebum Lee, Se-Hoon Lee, Yoon-La Choi, Joungho Han
Oncotarget.2016; 7(17): 23874. CrossRef

Differential Expression of Glut1 in Pulmonary Neuroendocrine Tumors: Correlation with Histological Grade.: Hyun Ju Lee, Seol Bong Yoo, Won Woo Lee, Doo Hyun Chung, Jeong Wook Seo, Jin Haeng Chung; Korean J Pathol. 2009;43(3):201-205.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.3.201

3,675 View
31 Download
2 Crossref

Abstract PDF

BACKGROUND
Increased glucose uptake, a process that is mediated by glucose transporter (Glut1) proteins, is an important metabolic feature in a variety of cancer cells. The overexpression of Glut1 in human cancers is known to be related to a variety of histopathological parameters, including histological grade, proliferation rate, and lymphatic invasion. The principal objective of this study was to evaluate Glut1 expression in the spectrum of pulmonary neuroendocrine (NE) tumors including typical carcinoid tumor (TC), atypical carcinoid tumor (AC), large cell neuroendocrine carcinoma (LCNEC), and small cell carcinoma (SCC), and to characterize the relationship between Glut1 expression and the histologic grade of NE tumors.
METHODS
19 TC, 7 AC, 13 LCNEC, and 6 SCC patients were included in this study. The percentages of Glut1-positive tumor cells in these patients were determined. For statistical analysis, Glut1 expression was subdivided into a Glut1-low expression group (0-30%) and a Glut1-high expression group (31-90%).
RESULTS
In our subgroup analyses, the histological grade of pulmonary neuroendocrine (NE) tumors was significantly correlated with Glut1 expression; TC (n=19, 3.6+/-4.2%), AC (n=7, 20.0+/-4.9%), LCNEC (n=13, 60.0+/-21.1%), and SCC (n=6, 74.2+/-16.9%). Glut1-high expression was significantly associated with high-grade NE tumors such as LCNEC and SCC (n=19, 62.6+/-21.0%) (p=0.000).
CONCLUSIONS
The results of this study appear to indicate that Glut1 overexpression is a consistent feature of high-grade NE lung tumors.

Citations

Citations to this article as recorded by

GLUT1: A novel tool reflecting proliferative activity of lung neuroendocrine tumors?
Nazim Benzerdjeb, Pascal Berna, Henri Sevestre
Pathology International.2017; 67(1): 32. CrossRef
Oncocytic carcinoid tumor of the lung with intense F-18 fluorodeoxyglucose (FDG) uptake in positron emission tomography–computed tomography (PET/CT)
Yuki Tanabe, Yoshifumi Sugawara, Rieko Nishimura, Kohei Hosokawa, Makoto Kajihara, Teruhiko Shimizu, Tadaaki Takahashi, Shinya Sakai, Shigeki Sawada, Motohiro Yamashita, Haruhiko Ohtani
Annals of Nuclear Medicine.2013; 27(8): 781. CrossRef

Immunohistochemical Study of IL-4, IL-6, and TNF Expression in Cardiac Myxoma: Emphasis on Constitutional Symptoms of the Myxoma Patients.: Min Sun Cho, Soo Yeon Cho, Mi Jung Kim, Sung Sook Kim, Jeong Wook Seo, Woon Sup Han; Korean J Pathol. 1995;29(5):563-571.

1,583 View
10 Download

Abstract: It is well documented that cardiac myxomas are associated with immunologic features that can simulate systemic autoimmune diseases. Recently, it was reported that cardiac myxomas produce IL-6 constitutively, which could partly explain the immunologic features observed in these patients. However, only a few investigators have studied cytokines in regards to symptoms they may cause in patients with cardiac myxoma. Also there is very little information in the literature on the immunohistochmical localization of IL-6. We performed immunobistochemical stains for IL-4, TNF, and IL-6 on paraffm embbeded tissue of cardiac myxoma tissue. A bioassay of IL-6 activity in patient's serum and in cultured cells from fresh myxoma tissue was performed to ascertain the role of these cytokines in myxomas. In this study, we demonstrated inununohistochemically that there was a local overproduction of IL-4, TNF, and IL-6 in cytoplasm of the tumor cells in about half cases. Bioassays of the serum and cultured tumor cells revealed elevated IL-6 activities. Also these findings correlate to production of patient's constitutional symptoms with statistical significance (P<0.05). In conclusion, these results are of considerable importance in understanding the role of IL-4, TNF, and IL-6 in cardiac myxoma patient with constitutional symptoms, and have an impact on strategies for diagnosis and therapy of cardiac myxoma.

Immunohistochemical Study of Primary Large Cell Undifferentiated Carcinoma of the Lung.: Hye Seung Han, Jeong Wook Seo, Eui Keun Ham; Korean J Pathol. 1996;30(5):417-426.

1,572 View
11 Download

Abstract PDF: We performed a histopathologic and immunohistochemical study of 23 cases of surgically resected large cell undifferentiated carcinoma(LCUC) of the lung. The relative incidence of LCUC was 7.6% among the total resected cases of primary lung cancer over 7 years(1987-1993). The mean age of the patients was 56 years and 21 cases were male. The mean size of the mass was 5 cm and 11 cases were located peripherally. According to the histologic features, LCUC could be divided into three groups: squamous cell carcinoma-like(6 cases), adenocarcinoma-like(13 cases), and small cell carcinoma-like(4 cases) groups. The histologic differences were related to the variations of the immunohistochemical properties, but there were no differences in prognosis among these groups. Immunoreactivity to cytokeratin(CAM 5.2) was demonstrated in 22/23(96%). Carcinoembryonic antigen was positive in 13/23(57%). Neuron specific enolase and chromogranin were positive in 11/23(48%) and 5/23(22%), respectively. Vimentin was seen in 11/23(48%). From these observations, we could subclassify them by their immunologic phenotypes; exocrine features in 6/23(26%), neuroendocrine(NE) features in 4/23(17%), both exocrine and NE phenotypes in 7/23(30%), and 6 cases(26%) showed neither phenotype. The group with NE features showed a worse prognosis(P<0.05) and immunoreactivity for vimentin was also related to a worse prognosis(P<0.05). These findings imply that the immunohistochemical properties of LCUC are closely related to the histopathologic features. The groups, subdivided by histology and immunoreactivity, showed no prognostic difference except for the NE differentiation and reaction for vimentin.

Case Reports

Common Arterial Trunk: Report of Five Atopsied Cases.: Gil Hyun Kang, Yong Hee Lee, Chong Woo Yoo, Choong Sik Lee, Hong Ryang Kil, Sang Ho Cho, Jeong Wook Seo; Korean J Pathol. 1996;30(11):1027-1033.

1,536 View
13 Download

Abstract PDF: The common arterial trunk is a congenital cardiovascular malformation in which one arterial trunk gives origin to the aortic arch, pulmonary and coronary arteries. Other cardiovascular malformations are often associated, such as ventricular septal defect, aortic arch interruption, patent arterial duct and so on. During the early period of life, the persistence of the increased pulmonary arteriolar resistance results in cyanosis. As the pulmonary vascular resistance decreases, the cyanosis disappears but signs of congestive heart failure become the main problems. We report five cases of common arterial trunk that was confirmed by autopsy at Chungnam National University Hospital, Seoul National University Hospital, and Yonsei University Severance Hospital between 1983 and 1995. The ages of these patients at autopsy were 8-28 days and four of them were male. Pulmonary arteries arose as a pulmonary trunk in two cases but three cases showed two arteries arising separately from the posterior wall of the common trunk. The type of ventricular septal defect was juxtatruncal in every case. All five cases had three leaflet truncal valves but three cases showed dysplasia of the leaflets. Interruption of aortic arch was associated in two cases. The cause of death was renal failure in two cases, cardiac failure after corrective surgery in two cases, and pulmonary edema and failure in one case.

Decubitoma: A Pseudosarcoma in Decubitus: Report of a case.: Hye Seung Han, Yong Il Kim, Jeong Wook Seo; Korean J Pathol. 1996;30(11):1060-1064.

1,401 View
11 Download

Abstract PDF: Decubitus ulcer is often seen in the skin and underlying tissue of debilitated or immobilized patients as the result of prolonged pressure and impaired circulation. It manifests chiefly as an ulcer over bony prominences, but tumefaction is an extremely unusual presentation. A 53-year old male, a paralytic of the lower extremity for 18 years, developed a recurrent decubital ulcer despite repeated surgical repair, from which a rapidly growing, large fungating mass grew within a month. The last resected mass was bosselated and measured 15x9x3 cm with a major area of cicatrix-like induration, interdigitated with skeletal muscle bundles at the central area. Microscopically, the mass was composed of an upper half of active granulation tissue layer and a deeper half of dense, poorly cellular, fibrocollagenous bundles admixed with florid proliferation of atypical fibroblasts, but the absence of mitosis and the multifocal admixture of active inflammatory process-granulation tissue formation seemed to help exclude genuine fibromatosis, nodular fasciitis or proliferative myositis. We assume that this rapidly growing pseudofibromatosis is an additional manifestation of a prolonged decubitus ulcer, possibly related to the modified reparative process of decubitus ulcer following repeated excisions, for which we propose a term of decubitoma.

Original Articles

Morphological Study on the Mechanism of the Central Nervous System Dysfunction Induced by Unipolar Pulsating Magnetic Field in Mice.: Ro Hyun Sung, Gyeong Hoon Kang, Chong Heon Lee, Suk Keun Lee, Young Hae Chung, Yoo Hurn Suh, Jeong Wook Seo, Je G Chi; Korean J Pathol. 1996;30(12):1073-1082.

1,524 View
10 Download

Abstract PDF: The morphologic change of the mouse brain after exposure to magnetic field is studied. Our magnetic field model was a pulsed unipolar magnetic field with the flux density of 0.2 - 0.3 tesla and the frequency of 60 hertz. Twelve adult male mice were exposed to the magnetic field for 2, 4, 8, 12, 18 and 24 hours. After the exposure to the magnetic field mice were anesthetized with chloral hydrate, and paraformaldehyde was infused through the left ventricle for fixation. During exposure to the magnetic field, behavioral and weight changes of mice were observed. Mice became irritable and restless, especially during first 2 hours of the exposure. Microscopic and ultrastructural examination on the brain revealed nuclear chromatin clumping of the neuron in mice exposed to the magnetic field for more than four hours. The change was proportional to the exposed time and more prominent in the cerebral cortex. An immunohistochemical study for amyloid precursor protein (APP) was also performed. There was an increased expression of APP in the neuronal cytoplasm of the mouse brain exposed to the magnetic field for 4 hours or more. But the reaction was not proportional to the exposure time and reactive neuron was diffusely distributed through the whole brain. Anti-APP antibody reactivity was not correlated with the chromatin clumping. The mechanism of APP induction was postulated as stress-induced APP-gene induction, and the role of APP was presumed to protect the neuron against hazardous environment.

Congenital Anomalies Observed by Autopsies at the Seoul National University Children's Hospital.: Jin Haeng Chung, Jeong Wook Seo, Chong Jai Kim, Chul Woo Kim, Je G Chi; Korean J Pathol. 1997;31(2):93-99.

1,489 View
15 Download

Abstract PDF: A retrospective analysis was performed on the 968 cases of fetal or pediatric autopsies over five year period (1990-1994), at the Seoul National University Children's Hospital. Age/mode distribution of cases were artificial abortus(30.6%), spontaneous abortus(12.0%), stillbirth(21.9%), neonates(29%), infants(2.8%) and children(0.9%). Male/female ratio was 1.21. Overall incidence of congenital anomalies was 60.8% and 34.0% of all cases had anomalies involving multiple organ systems. Percentage of cases with any anomaly was 71.6% in artificial abortus, 35.3% in spontaneous abortus, 59% in still births, 65.5% in neonates and 38.9% in infant and children. Common organ systems involved were the cardiovascular system (39.0%), musculoskeletal system (23.6%), nervous system (22.6%), gastrointestinal system (19.9%), and urinary system (14.6%). From these results, we found that the congenital anomalies were most significant diseases of the perinatal period and the cardiovascular anomalies were the most common anomalies of them.

Congenital Cystic Disease of the Kidney overview and a classification.: Mee Joo, Yeon Mee Kim, Chong Jai Kim, Yeon Lim Suh, Jeong Wook Seo, Je Geun Chi; Korean J Pathol. 1997;31(3):233-243.

1,473 View
13 Download

Abstract PDF: The congenital renal cystic disease encompasses a complex group of pathologic and clinical entities. We retrospectively reviewed 42 cases of congenital renal cystic lesions classified into four Potter types in a series of 2,063 consecutive autopsies from 1981 to 1996. According to our study based on morphologic, clinical, genetic features and associated anomalies, type I and III are relatively compatible with Potter's original definition. However, it was reasonable that type II and IV are classified to the same group because of: 1) very similar histologic findings representing dysplastic kidney, 2) many associated anomalies, 3) no evidence of inheritance, and 4) presence of a combined type. Syndrome associated cysts, such as Meckel-Gruber syndrome, were also separately classified. If the dysplastic evidence was insufficient for diagnosis to the dysplastic kidney in type II and IV, then these cases would be better classified into a cystic disease associated with congenital hydronephrosis. We propose a classification of the congenital cystic disease of the kidney to be: 1) dysplastic kidney, 2) cystic disease associated with congenital hydronephrosis, 3) polycystic kidney, and 4) syndromic cystic disease.

Pathologic Analysis of Endomyocardial Biopsies in Heart Transplantation.: Mee Hye Oh, Jeong Wook Seo, Kook Yang Park, Young Tak Lee, Yoon Seop Jeong, Suk Keun Hong, Joon Ryang Rho, Byung Hee Oh, Sung Sook Kim; Korean J Pathol. 1998;32(2):104-114.

1,549 View
13 Download

Abstract PDF: Endomyocardial biopsy (EMB) is a valuable diagnostic procedure for the surveillance of cardiac allograft rejection. Interpretation of individual cases is still problematic due to variations of findings for grading of rejection and other associated lesions. We reevaluated an experience on endomyocardial biopsies to develop better diagnostic criteria for rejection and other complications. Immunohistochemical studies against cytokines were performed to assess the usefulness of the method for the diagnosis or researches. A total of 249 EMBs taken from 33 cardiac allograft recipients were reviewed. There were 25 males and 8 females. Dilated cardiomyopathy was present (24 cases) and valvular heart disease (4 cases), restrictive cardiomyopathy (3 cases) were also common conditions. We applied the grading system of the International Society for Heart Transplantation (ISHT) for the assessment of acute cellular rejection. Grades of 0, 1A, 1B, 2, 3A and 3B were 39.0%, 28.1%, 11.2%, 11.5%, 12.4% and 1.6% respectively, but 3.2% were inadequate. Thirty five episodes of grade 3A or 3B were present in 17 patients. The response to therapy was assessed using a next follow up biopsy, which revealed resolving or resolved rejection in 85% of patients. The intensity of immunohistochemical stains for IL-6 and TNF-alpha was increased in proportion to the histologic grade but Quilty lesion and cardiomyopathy also showed a positive reaction. The other pathologic findings were ischemic change, previous biopsy site, interstitial edema and fibrosis, and Quilty lesion. These findings showed usefulness of endomyocardial biopsy not only for the evaluation of cardiac allograft rejection but also for the diagnosis of associated cardiac lesions. Immunohistochemical study of the cytokines was related to the degree of inflammation rather than degree of rejection.

The Current Practice of the Autopsy Services and the Autopsy Records at the Seoul National University Hospital.: Jeong Wook Seo, Yoon Sung Lee, Je Geun Chi, Ghee Young Choe, Soong Deok Lee, Chong Jai Kim, In Ae Park, Woo Ho Kim, Ja June Jang, Chul Woo Kim, Seong Hoe Park, Jung Bin Lee, Hyun Soon Lee, Yong Il Kim, Eui Keun Ham, Sang Kook Lee; Korean J Pathol. 1998;32(6):453-459.

1,656 View
10 Download

Abstract: This study outlines the current status of the autopsy practice and the medical records for autopsies at the Department of Pathology, Seoul National University Hospital. Total number of autopsy cases from 1954 to 1995 was 3,131. Adults aged over 17 were 371 cases and children were 2,515 cases. The demographic data in 245 cases was not available. The number of adult autopsies and its proportion among total number of autopsies during 10-year periods decreased from 144 cases (40%) during the 10-year-period from 1956 to 52 cases (3%) during the 10-year-period from 1986. The number of children cases during the same period groups increased slightly from 210 cases (58%) to 393 cases (25%). But the number of fetal cases increased rapidly from 7 cases (2%) to 1,146 cases (72%). Among fetal autopsies the proportion of fetuses died earlier than 24 weeks of gestation increased and this figure exceeds that of fetuses that died later than 24 weeks of gestation from 1992. Forty percent of the cases were submitted from the clinical departments of the Seoul National University Hospital but the remainders were referred from 73 hospitals. Final autopsy diagnoses were analysed according to the Korean Standard Classification of Disease (KCD)-3 coding system and by searching key words for all cases. Common diagnoses as coded among cases from 1990 were P9, P0, P2, Q2 and Q0. Common diseases by key words for adult cases were liver disease, tuberculosis and pneumonia. Common diseases for children cases were pneumonia, hyaline membrane disease, meningitis and tuberculosis. Through this study we could show the importance of autopsy services for fetuses. We could also establish a regular registration system for autopsies at general hospitals.

Image Standardization and Determination of Gray Level Threshold in the Assessment of the Myocardial Fibrosis by the Computerized Image Analysis.: Nam Young Lee, Young Sik Park, Jin Haeng Chung, Jeong Wook Seo; Korean J Pathol. 1998;32(7):494-503.

1,417 View
10 Download

Abstract: The computerized image analysis is a useful tool for the quantitative assessment of histopathologic findings. In contrast to the usual microscopic examination by pathologists, the computerization should be accompanied with the standardization process of the image. We developed an algorithm to standardize images and to determine the optimal gray level threshold, using a myocardial fibrosis model. Sirius red staining was more convenient for the image analysis than Masson's trichrome staining because of a better contrast with the surrounding structures. To get an optimal measurement, light intensity was standardized at each of the fibrosis, myocardium and background. In this study, the most promising method to determine the degree of fibrosis was that of revising the background without tissue to a gray level of 200, obtaining a green component of the color image, revising the myocardial fiber to 163, and defining a partial ratio as fibrosis index when the gray level threshold was 120. These threshold levels and parameters were determined after drawing the binarization index curves according to the change of the gray level threshold and by the morphological examination of the actual binarization figures overlaid to the original color image. Through these processes we could get a consistent result on the myocardial fibrosis and we expect a similar principle applies when we analyze color images in the histopathologic quantitation by computerized image analysis.

The Role of Cell Proliferation and Apoptosis in the Cardiac Development.: Eo Jin Kim, Hyo Soo Kim, Jeong Wook Seo; Korean J Pathol. 1998;32(12):1049-1057.

1,432 View
10 Download

Abstract: The functional and morphologic cardiac developments are determined by the morphogenesis, growth and remodeling of the heart resulted from the cell proliferation and apoptosis. We studied the distribution of the proliferation and apoptotic activity of myocardial cells according to the developmental stages in embryos of C57bl/6 mice. Serial histologic sections were stained with PCNA and TUNEL method and were analyzed with image analyzer (BMI, Seoul). The ventricular myocardium of an embryonic heart could be divided into trabecular, inner compact and outer compact layers. Proliferation indices at layers of the left ventricular myocardium on embryonal days (ED) 13, 14, 16, 17 and 18 were 19.9%/47.4%/60.4%, 16.1%/45.8%/60.3%, 24.6%/45.6%/38.1%, 23.3%/17.7%/18.3% and 31.2%/28.0%/19.4% (trabecular/ inner compact/ outer compact) and the right ventricle, 11.0%/34.4%/60.5%, 23.0%/44.0%/69.0%, 29.2%/42.9%/35.1%, 30.4%/30.5%/22.3% and 32.4%/28.4%/16.3%. The apoptotic indices of the left ventricle/VIF were 0.23%/3.66% on ED 13-14, 0.42%/1.31% on ED 16 and 0.05%/0.60% on ED 17-18. The results show that the proliferation of the myocytes was maximal at the outer compact layer on ED 13 and 14 but lowest on ED 17 and 18. This decrease was more pronounced at the left ventricle. The innermost trabecular layer showed a constant proliferation activity of 11.0-32.4%. The presence of spatiotemporal differences in the cell proliferation reveals regional regulation in the developmental timing of cardiac development. Functional maturation is considered to be responsible for the change of proliferation activity. The apoptosis was most frequent and intense in the VIF and crux throughout the periods of each embryonal day where as rarely seen in the ventricular myocardium, especially in the trabecular layer of myocardium. These findings suggest that the apoptosis plays the role in the development of atrioventricular, ventriculoarterial septation and valve formation. Our results also reveal that the participation of apoptosis in formation of the trabeculation can be denied.

Intrauterine Infection as a Cause of the Neonatal Pulmonary Injury and Bronchopulmonary Dysplasia.: Jin Haeng Chung, Jeong Wook Seo; Korean J Pathol. 2000;34(6):431-436.

1,349 View
11 Download

Abstract PDF: The pathogenetic role of intrauterine infection to the neonatal pulmonary injury and bronchopulmonary dysplasia was assessed by studying the interleukin-6 (IL-6) level in the umbilical cord blood and the early morphologic changes of the neonatal lung. Patients were grouped into bronchopulmonary dysplasia (4 cases), chorioamnionitis without chronic lung injury (4 cases), and 6 cases without morphologic evidence of chronic lung injury or placental inflammation. IL-6 level of umbilical cord blood was higher in babies with bronchopulmonary dysplasia (17.7 pg/ml) compared to those with chorioamnionitis (4.7 pg/ml) or those with morphologically normal lung and placenta (6.2 pg/ml). Morphologic parameters of neonatal pulmonary injury were hyaline membrane, terminal bronchiole inflammation, terminal bronchiole regeneration, alveolar collapse and fibroblastic proliferation. Bronchiolar regeneration was the most peculiar feature seen in the lung with bronchopulmonary dysplasia. Alveolar collapse and interstitial fibroblastic reaction were commonly seen in bronchopulmonary dysplasia. The postnatal age at death was higher in those with bronchopulmonary dysplasia, although the occurrence of the morphologic changes was related with the chronicity of those lesions. These findings suggest that intrauterine infection is an aggravating factor for the neonatal pulmonary injury and bronchopulmonary dysplasia, although the early stage of the lung injury is not a definitive indicator for the progressive pulmonary damage leading to the bronchopulmonary dysplasia.

Transthoracic Fine Needle Aspiration Cytology of the Lung .: Min Suk Kim, In Ae Park, Sun Hoo Park, Sung Shin Park, Hwal Wong Kim, Kyung Chul Moon, Young Ah Kim, Hye Seung Lee, Ki Wha Park, Jeong wook Seo, Hyun Soon Lee, Eui Keun Ham; Korean J Cytopathol. 1999;10(1):13-19.

1,542 View
12 Download

Abstract PDF: The authors analysed 2,653 cases of transthoracic fine needle aspiration cytology of the lung to evaluate the diagnostic accuracy and its limitation. A comparison was made between the original cytologic and the final histologic diagnoses on 1,149 cases from 1,074 patients. A diagnosis of malignancy was established in 38.3% benign in 48.1%, atypical lesion in 2.3%, and inadequate one in 11.9% of the cases. Statistical data on cytologic diagnoses were as follows; specificity 98.9%: sensitivity of procedure, 76.8%: sensitivity of diagnosis, 95.5%: false positive 5 cases: false negative 18 cases: predictive value for malignancy, 98.8%: predictive value for benign lesion, 79.5%: overall diagnostic efficiency, 87.5%: typing accuracy in malignant tumor, 80%.

First
Prev
Page of 2
Next
Last

Search