Program

The 77th Annual Fall Meeting of the Korean Society of Pathologists

10/30 (Thu)
Session Poster No. Abstract Title Name Affiliation Country
PE1 (Thu) P-001 (IPP-1) Characterization of Undifferentiated Carcinoma of the Salivary Gland: Clinicopathological and Immunohistochemical Analyses in Comparison with Lymphoepithelial Carcinoma Sangjoon CHOI Shinwon Medical Foundation Korea
PE1 (Thu) P-002 (IPP-2) Podoplanin and CD163 expression as predictors of extranodal extension in head and neck squamous cell carcinoma Ji Hye KIM Ulsan University Hospital Korea
PE1 (Thu) P-003 Incidence and Outcomes of Thyroid Nodules with Atypia of Undetermined Significance (AUS) Cytology in a Tertiary Government Hospital Ariane Marielle VALLE Philippine General Hospital Philippines
PE1 (Thu) P-004 Prognostic Impact of Infiltrative Invasion Pattern in Early-Stage HPV-Associated Oropharyngeal Cancer Meejeong KIM Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea Korea
PE1 (Thu) P-006 A rare case of lung cancer metastasis to the maxillary sinus Hansol KIM Yonsei University Wonju College of Medicine Korea
PE1 (Thu) P-008 Nasopharyngeal mucoepidermoid carcinoma with MAML2 translocation: A case report and comprehensive literature review Chan-Fong CHIO Conde de São Januário General Hospital China
PE1 (Thu) P-009 Maxillary Metastatic Lung Cancer Presenting as Partial Cystic Lesion Ho Sung PARK Jeonbuk National University Medical School Korea
PE1 (Thu) P-010 Carcinosarcoma ex pleomorphic adenoma of the parotid gland Sojin PARK Guy's and St Thomas' NHS Foundation Trust United Kingdom
PE1 (Thu) P-011 (IPP-3) Evaluation of general-purpose large language models as diagnostic support tools in cervical cytology Thiyaphat LAOHAWETWANIT Thammasat University Hospital Thailand
PE1 (Thu) P-012 Predicting Nottingham grade in breast cancer digital pathology using a foundation model Myung-Giun NOH Ajou University School of Medicine Korea
PE1 (Thu) P-013 Computational Pathology Predicts Immunotherapy Response and Maps Spatial Biomarkers in Gastric Cancer Myung-Giun NOH Ajou University School of Medicine Korea
PE1 (Thu) P-014 Enhancing Frozen Section Interpretation via Generative AI: Translating to FFPE-like Images in Skin Cancer Resection Margins Sang-Hoon LEE Yonsei University Wonju College of Medicine Korea
PE1 (Thu) P-015 advancements in detection, segmentation, and quantification of liver lesions and other organs in toxicology studies using AI-driven digital pathology techniques applied to rat Singh M AKTU India
PE1 (Thu) P-016 Can AI Generate Pathology Reports? Insights from the K-Medicon 2024 Challenge Harim OH Korea University Anam Hospital Korea
PE1 (Thu) P-017 Artificial Intelligence in Ultrasound Evaluation of Indeterminate Thyroid Nodules Nadyatul HUSNA Universitas Andalas/ dr. Reksodiwiryo Military Hospital Padang Indonesia
PE1 (Thu) P-018 Innovative Application and Exploration of Digital Pathology Teaching in the Standardized Training of Clinical Pathology Residents Jiaoyue JIN Zhejiang Cancer Hospital China
PE1 (Thu) P-019 Core needle biopsy-based risk assessment in indeterminate thyroid nodules: A histopathologic and imaging approach Bogyeong HAN Samsung Medical Center Korea
PE1 (Thu) P-020 THE BRAF and NRAS MUTATIONS and CLINICAL-PATHOLOGICAL FEATURES OF THYROID TUMORS IN MONGOLIA Suren OKDOO MONGOLIAN NATIONAL UNIVERSITY OF MEDICAL SCIENCES Mongolia
PE1 (Thu) P-021 Integrating AI-Assisted Ultrasound with Cytopathology in Thyroid Nodule Evaluation Nadyatul HUSNA Universitas Andalas/ dr. Reksodiwiryo Military Hospital Padang Indonesia
PE1 (Thu) P-022 Malignancy risk assessment in AUS thyroid lesions: a comparable analysis of fine needle aspiration vs. core needle biopsy, evaluating the role of core needle biopsy in diagnosing NIFTP Yeseul KIM Korea University Anam Hospital Korea
PE1 (Thu) P-023 Preoperative hydrodissection for predicting extrathyroidal extension in thyroid tumors: A preliminary study Yeseul KIM Korea University Anam Hospital Korea
PE1 (Thu) P-024 Atypical Parathyroid Tumor with Prominent Lymphocytic Infiltration Ho Sung PARK Jeonbuk National University Medical School Korea
PE1 (Thu) P-025 Metastatic Medullary Thyroid Carcinoma Without Identifiable Primary Tumor Within the Thyroid Gland, Presenting with Initial Lymph Node Metastasis Followed by distant Peritoneal metastasis: A Case report of a Rare Phenomenon Eunyeong LEE Kyungpook National University Chilgok Hospital Korea
PE1 (Thu) P-026 A case of tumor-to-tumor metastasis: metastatic clear cell renal cell carcinoma in encapsulated oncocytic papillary thyroid carcinoma Kyu Yun JANG Jeonbuk National University Medical School Korea
PE1 (Thu) P-028 A Rare Congenital Cardiac Anomaly: A Twist in the Heart – Criss-Cross Heart Syndrome Autopsy Case Bolortuya DORJ Ulaanbaatar Songdo hospital Mongolia
PE1 (Thu) P-029 HER2 heterogeneity between primary cancers and brain metastases: A retrospective analysis of 185 matched pairs across multiple cancer types Ji Young LEE Hwasun Chonnam National University Hospital Pathology Korea
PE1 (Thu) P-031 Molecular pathological diagnostic issue of pediatric midline glioma in Mongolia Enkhee OCHIRJAV National Center for Pathology Mongolia
PE1 (Thu) P-032 HISTOPATHOLOGICAL ASSESSMENT OF RESECTED BRAIN TISSUE FROM EPILEPTIC FOCI Enkhee OCHIRJAV National Center for Pathology Mongolia
PE1 (Thu) P-033 EWSR1::BEND2 Fusion Gliomas: A Distinct Epigenetic and Clinicopathologic Subtype of Astroblastoma Minjung HONG SNUH Korea
PE1 (Thu) P-034 Pathologic Depth Demonstrates Greater Prognostic Relevance Than AJCC T Stage in Central Lung Squamous Cell Carcinoma: A Retrospective Analysis Sohyun Shin Pusan National University Yangsan Hospital Korea
PE1 (Thu) P-035 Immune Gene Signatures and Tumor Microenvironment Features Associated with Response to Anti PD 1 Therapy in Non Small Cell Lung Cancer Nadyatul HUSNA Universitas Andalas/ dr. Reksodiwiryo Military Hospital Padang Indonesia
PE1 (Thu) P-036 MOLECULAR CHANGES OBSERVED İN NEXT-GENERATİON SEQUENCİNG İN LUNG SQUAMOUS CELL CARCİNOMAS, A SİNGLE CENTER EXPERİENCE ÜNSAL OĞUZ SEDA Dicle Üniversity Turkiye
PE1 (Thu) P-037 Pulmonary Sarcomatoid Carcinoma with Unusual Morphology and BAP1 Loss: A Case Report and Literature Review Wookjae JUNG Gyeongsang National University Hospital Korea
PE1 (Thu) P-038 Erdheim-Chester disease with predominant cardiac and pulmonary involvement: A rare case report Min Gyoung PAK DongA University College of Medicine Korea
PE1 (Thu) P-039 THORACIC SMARCA4 ( BRG1) DEFICIENT UNDIFFERENTIATED TUMOR ECE YILMAZ EŞSİZ Dicle Üniversity Turkiye
PE1 (Thu) P-040 CASE REPORT: TERATOMA AND TERATOMA-INVASIVE ENTERIC TYPE THYMIC CARCINOMA IN THE MEDIASTINUM SEDA AKAR Dicle Üniversity Turkiye
PE1 (Thu) P-041 (IPP-5) Establishment and Application of a Novel System for Evaluation of Molecular Biomarkers of Targeted Drugs Sensitivity in Esophageal Squamous Cell Carcinoma Jiaoyue JIN Zhejiang Cancer Hospital China
PE1 (Thu) P-042 (IPP-6) HISTOPATHOLOGIC CHARACTERISTICS AND PROGNOSTIC OF GASTRIC CANCER IN MONGOLIA Sayamaa LKHAGVADORJ MNUMS Mongolia
PE1 (Thu) P-043 Analysis of Helicobacter pylori infection status and clarithromycin-resistant strains in gastric mucosa-associated lymphoid tissue lymphoma patients using RT-PCR: A single-center study in Korea Joo Yeon KOO Chonnam national university Hwasun hospital Korea
PE1 (Thu) P-044 Clinicopathological characteristics of gallbladder cancer patients Min-Kyung YEO Chungnam National University Korea
PE1 (Thu) P-046 Optimal Gastric Biopsy Site for Diagnosis of Helicobacter pylori Infection with Rapid Urease Test: A Prospective Cohort Study Heonwoo LEE Asan medical center Korea
PE1 (Thu) P-047 Elucidation of Leptosidin loaded mesoporous silica nanoparticles on acute alcoholic liver injury (ALI) in a mouse model via histopathological study, and ferroptosis (GPX4/SLC7A11/Beclin-1/ATG5/LC3II/I/FTL/P62) cascade. Niti SINGH CSVTU India
PE1 (Thu) P-048 Histologic and Genomic Correlates in Gastric Cancer: Implications for Treatment Response Chanyoung KIM Seoul National University Bundang Hospital Korea
PE1 (Thu) P-049 Variation in Mitotic Counting and Risk Classification Practices for Gastrointestinal Stromal Tumors: A Survey of Pathologists in South Korea In Hye SONG Asan Medical Center Korea
PE1 (Thu) P-050 Comparison of Immunohistochemistry and Targeted Next Generation Sequencing Result in Primary Imatinib-treated Unresectable or Metastatic Gastrointestinal Stromal Tumor Patients Jinho SHIN Asan Medical Center Korea
PE1 (Thu) P-051 A CASE OF APPENDICEAL NEUROENDOCRINE TUMOR DIAGNOSED VIA HISTOPATHOLOGICAL BIOPSY KHULAN KHULAN. M Dornod Medical Centre Mongolia
PE1 (Thu) P-052 The Challenging Diagnosis of Cronkhite-Canada Syndrome: A Case Report of a Patient with Multiple Colon Polyps with Adenomatous Change Jaeha LIM National Cancer Center Korea
PE1 (Thu) P-053 Histological Subtypes and Age-Sex Distribution of Pediatric Neuroblastic Tumors in Mongolia Udval KHURELBAATAR Intermed Hospital in Mongolia Mongolia
PE1 (Thu) P-054 Intraoperative Evaluation of Ureteropelvic Junction Obstruction Using Rapid Masson’s Trichrome Staining on Frozen Sections: A Pilot Study of Collagen-to-Muscle Ratio Assessment PAVITHRA SAAI ARUN Associate Professor India
PE1 (Thu) P-056 PAX3::NCOA2 fusion identified in congenital embryonal rhabdomyosarcoma: a case report with literature review Kyung-Hee KIM Chungnam National University Hospital Korea
PE1 (Thu) P-057 Diffuse panbronchiolitis in a pediatric patient with primary ciliary dyskinesia: A case report and literature review Hee Sang HWANG University of Ulsan College of Medicine, Asan Medical Center Korea
PE1 (Thu) P-112 Validation and Clinical Utility of IASLC Recommendations for Multiple Lung Adenocarcinomas: Real-world Data from an East Asian Population Meejeong KIM Seoul St Marys Hospital Korea
10/31 (Fri)
Session Poster No. Abstract Title Name Affiliation Country
PE2 (Fri) P-058 Expression and significance of SAMHD1 in osteosarcoma Kyu Yun JANG Jeonbuk National University Medical School Korea
PE2 (Fri) P-059 The impact of SAMHD1 and p-ATM expression on the progression and prognosis of soft tissue sarcoma patients Kyoung Min KIM Jeonbuk National University Medical School Korea
PE2 (Fri) P-060 IMMUNOHISTOCHEMICAL EXPRESSION OF TRPS-1(TRICHORHINOPHARYNGEAL SYNDROME-1) IN BREAST CARCINOMA PAVITHRA SAAI ARUN Sri Ramachandra Institute of Higher Education & Research / Associate Professor India
PE2 (Fri) P-062 Assessment of HER2-Low Breast Cancer Using Digital Pathology: A Single-Institution Experience Yunkyoung Kang Pusan National University Yangsan Hospital Korea
PE2 (Fri) P-063 Curcumin Loaded Nanoparticles Modulating Breast Cancer Histopathology in Rats via suppression of PI3K/Akt signaling and activation of apoptotic pathways Deepika SINGH SHUATS India
PE2 (Fri) P-064 The Role of PTEN in TNBC Progression I Made Wikrama Resindra RSUP Prof Ngoerah Indonesia
PE2 (Fri) P-065 INTRODUCTION OF RESULTS IMPLEMENTED IN CLINICAL PRACTICE, ASSESSMENT FOR FROZEN SECTION SUPPORTED BY MAMMOGRAPHY IN BREAST-CONSERVING SURGERY TISSUE Bayart-Uils BAYAR National Center for Pathology Mongolia
PE2 (Fri) P-066 Apocrine Encapsulated Papillary Carcinoma of the Male Breast with Frank Invasion: A Case Report Min Ho PARK Chonnam National University Hwasun Hospital Korea
PE2 (Fri) P-067 Invasive breast carcinoma of no special type with choriocarcinomatous features: A Rare Case Report Udval KHURELBAATAR Intermed Hospital Mongolia
PE2 (Fri) P-068 MALIGNANT MELANOMA METASTASIZING INTO THE BREAST: CASE REPORT Enkhtsatsral BATMUNKH National Cancer Center of Mongolia Mongolia
PE2 (Fri) P-069 (IPP-7) Claudin 18.2 expression in primary tumors and their ovarian metastases: implications for targeted therapy Nah Ihm KIM Chonnam National University Hospital Korea
PE2 (Fri) P-072 Deep Learning-Based Multi-Omics Model Predicts Poly(ADP-Ribose) Polymerase Inhibitor Sensitivity and BRCA1 Dysfunction in SMARCA4-Deficient Ovarian Small Cell Carcinoma, Hypercalcemic Type Prihantini PRIHANTINI IMCDS-BioMed Research Foundation Indonesia
PE2 (Fri) P-073 Yolk Sac Tumor in Association with Ovarian Mucinous Carcinoma, A very Rare Entity Nadia HAMEED University of Texas MD Anderson Cancer Center United States
PE2 (Fri) P-074 Atypical Metastatic Presentation of Uterine Leiomyosarcoma as an Overt Gastric Mass in a 75-Year Old Female with Gastrointestinal Bleeding: A Case Report and Review Literature Eldimson BERMUDO Zamboanga City Medical Center Philippines
PE2 (Fri) P-075 High-Grade Immature Ovarian Teratoma with Gliomatosis Peritonei in an Adolescent: A Case Report Denn Saudi HAYUDINI Zamboanga city medical center Philippines
PE2 (Fri) P-076 TP53 Mutation in Dedifferentiated Sarcomatoid Component of Uterine Mucoepidermoid Carcinoma: A Rare Case Report Dong Hun LEE St. Vincent’s Hospital, The Catholic University of Korea. Korea
PE2 (Fri) P-077 GESTATIONAL CHORIOCARCINOMA: TWO CASES DIAGNOSED AT AUTOPSY Gankhuu GANKHUYAG Intermed Hospital Mongolia
PE2 (Fri) P-078 Transcriptional Heterogeneity and Tumor-Type–Specific Prognostic Significance of Tumor-Associated High Endothelial Venules in Cancers Yong-Jun LEE University of Ulsan College of Medicine Korea
PE2 (Fri) P-079 High ISG15 expression in DLBCL contributes to poor prognosis through the activation of immune evasion and chemotherapy-induced senescence–related pathways. So-Jeong KIM Asan Medical Center, University of Ulsan College of Medicine Korea
PE2 (Fri) P-080 (IPP-8) Utility of LymphoTrack FFPE Assay for Clonality Testing in Lymphoma: Integrated Panel- and Sample-Level Comparison with Fragment Analysis Seung Geun SONG Seoul National University Hospital Korea
PE2 (Fri) P-081 Comparative Analysis of the Tumor Microenvironment in Primary Central Nervous System and Testicular Large B-cell Lymphomas Using Digital Image Analysis and Its Implications for Immunotherapy Binnari KIM Ulsan University Korea
PE2 (Fri) P-082 Results of immunohistochemistry CD34 and p53 biomarkers in the diagnosis of aplastic anemia Khukhuu JANIBYEK First Central Hospital Mongolia
PE2 (Fri) P-083 Prognostic Significance and Spatial Characterization of Cytotoxic CD4+ T Lymphocytes in diffuse large B-cell lymphoma Hongsoon KIM Seoul National University College of Medicine Korea
PE2 (Fri) P-084 Age-stratified distribution of mature T-cell and NK-cell neoplasms in the pediatric, adolescent, and young adult population in South Korea according to the 5th WHO classification Jeemin YIM Boramae Medical Center Korea
PE2 (Fri) P-085 Histopathologic Challenges in Identifying Pseudogaucher Cells: A Case of Myelodysplastic Syndrome Heralyn Mae TURCO Zamboanga City Medical Center Philippines
PE2 (Fri) P-086 Intracranial Mass-forming Plasma Cell Myeloma with Coexisting Extramedullary Hematopoiesis: A Rare Case Report Dong Hun LEE St Vincents Hospital Korea
PE2 (Fri) P-087 Primary effusion lymphoma with aberrant expression of cytokeratin: a case report and literature review HYUNGJIN KIM Seoul National University Bundang Hospital Korea
PE2 (Fri) P-088 (IPP-9) COMPARISON OF SURVIVAL BASED ON PATHOLOGICAL FEATURES AMONG HBV, HCV, AND FATTY LIVER DISEASE–RELATED HEPATOCELLULAR CARCINOMA IN POST–LIVER RESECTION PATIENTS IN MONGOLIA Enkhtsatsral BATMUNKH National Cancer Center of Mongolia Mongolia
PE2 (Fri) P-089 (IPP-10) Pinocembrin-Loaded Egg Serum Albumin Nanospheres Modulate Hepatic Ischemia–Reperfusion Injury During Liver Transplant Via Targeting TLR-4, Myd88/P-Ikkα/P-Ikkβ/P-P65/NLRP3 and Gut Microbiome. Depika SINGH SHUATS India
PE2 (Fri) P-090 High CLDN18.2 Expression Associated with Improved Prognosis in Pancreatic Ductal Adenocarcinoma Hyebin CHA Hanyang University College of Medicine Korea
PE2 (Fri) P-091 Correlation Between Quantitative Metrics of Portal Tract and Histological Features in Early-stage Non-alcoholic Fatty Liver Disease Eundong PARK Albany Medical Center Korea
PE2 (Fri) P-092 Diagnostic Accuracy and Potential Pitfalls of Metallothionein Immunohistochemistry for Wilson Disease in Korean Patients In Hye SONG Asan Medical Center Korea
PE2 (Fri) P-093 Venous Invasion in Distal Extrahepatic Bile Duct Carcinoma: Histologic Patterns and Their Implications for Prognosis and Recurrence Jun-Young KIM Asan Institute for Life Science Korea
PE2 (Fri) P-094 Prognostic significance of Annexin A1, tumor-to-stroma ratio, and tumor budding in gallbladder cancer Eun Kyung KIM National health insurance service Ilsan hospital Korea
PE2 (Fri) P-095 High Cellular Prion Protein Expression is related with early recurrence and unfavorable prognosis in Cholangiocarcinoma Yoon Ah CHO Samsung Medical Center Korea
PE2 (Fri) P-096 Trends in Noninvasive Ultrasound Assessment of Liver Fibrosis and Steatosis and Implications for Pathology Nadyatul HUSNA Universitas Andalas/ dr. Reksodiwiryo Military Hospital Padang Indonesia
PE2 (Fri) P-097 Mixed hepatocellular carcinoma and neuroendocrine carcinoma of the liver: a case report. HuiTing HSU China Medical University Hospital Taiwan
PE2 (Fri) P-098 A case of mixed adenocarcinoma and large cell neuroendocrine carcinoma of the gallbladder Kyu Yun JANG Jeonbuk National University Medical School Korea
PE2 (Fri) P-102 Renoprotective effects of hesperidin in cisplatin induced nephrotoxicity and renal pathology in rats via Inhibiting TLR 4/NF κB/iNOS and cytokine pathway Manvendra SINGH HMFA MIET India
PE2 (Fri) P-103 Karyomegalic Interstitial Nephritis in a Young Male with Family History of Renal Disease Sam ALBADRI Mayo Clinic United States
PE2 (Fri) P-104 The Role of TP53 Mutation in Urothelial Carcinoma Carcinogenesis Ari Sudewa IDA BAGUS Faculty of Medicine, Udayana University Indonesia
PE2 (Fri) P-105 (IPP-4) c-MET immunohistochemical expression as a surrogate marker for predicting recurrence of papillary renal cell carcinoma Yong Il LEE Asan Medical Center Korea
PE2 (Fri) P-106 EVALUATION OF BIOPSIES FROM INFERTILE MEN UNDERGOING TESTICULAR SPERM EXTRACTION ECE YILMAZ EŞSİZ Dicle Üniversity Turkiye
PE2 (Fri) P-107 Paraganglioma of the Urinary Bladder Ho Sung PARK Jeonbuk national university medical school Korea
PE2 (Fri) P-108 Primary Well-differentiated Neuroendocrine Tumor in Horseshoe Kidney: First Case Report in Korea Min Gyoung PAK DongA University College of Medicine Korea
PE2 (Fri) P-109 Case Report: Synchronous Urothelial Carcinoma of Renal, Ureter, Bladder, and Urethra Eugenia MEIDY Udayana University Indonesia
PE2 (Fri) P-110 STAGHORN KIDNEY STONES OR EXTRASKELETAL OSTEOSARCOMA ? ECE YILMAZ EŞSİZ Dicle Üniversity Turkiye
PE2 (Fri) P-111 CASE REPORT: WILMS TUMOR WITH MYOGENIC DIFFERENTIATION SEDA AKAR Dicle Üniversity Turkiye
E-poster only
Session Poster No. Abstract Title Name Affiliation Country
E-poster only Mesenchymal Chondrosarcoma: An Illustrative Case Krystal April Joy CURSO University of the Philippines Manila Philippine General Hospital Philippines
E-poster only Short Rib Polydactyly Syndrome in a Filipino Infant: A Case Report Krystal April Joy CURSO University of the Philippines Manila Philippine General Hospital Philippines
E-poster only Histopathological Spectrum of Gastric Mucosal Changes in Helicobacter pylori Infection: A Single-Center Retrospective Study Bold-Erdene OTGONBAATAR Mongolian National University of Medical Sciences Mongolia
Withdraw
Session Poster No. Abstract Title Name Affiliation Country
Withdraw Evaluation of serum level of WT1 gene protein in the diagnosis of ovarian cancer Harshita DUBEY All India Institute of Medical Sciences, New Delhi India
Withdraw Evaluation Of Heat Stress and Dehydration Related Kidney Injuries Among Outdoor Laborers Thilini WIJERATHNA General Sir John Kotelawala Defence University Sri Lanka
Withdraw Evaluation Of Heat Stress and Dehydration Related Kidney Injuries Among Outdoor Laborers Thilini WIJERATHNA General Sir John Kotelawala Defence University Sri Lanka
Withdraw The Clinicopathological Significance of Genetic Alterations in Adult-Type Diffuse Gliomas: Beyond EGFR and TERT Hanbin JANG Seoul National University Bundang Hospital Korea
Withdraw Therapeutic Prospects of Passiflora foetida and Cinnamomum burmanii for Pediatric Insomnia Treatment Muhammad PRIYADI Universitas Palangka Raya Indonesia
Withdraw Diagnostic and Prognostic Implications of Gene Expression Signatures in Papillary Renal Cell Carcinoma Rian Ka PRAJA Universitas Palangka Raya Indonesia
Withdraw Examining Patterns of Sentinel Lymph Node Involvement in Invasive Breast Carcinoma and Their Role in Tumor Metastasis Dercio Jordao CHITSUNGO Inje University College of Medicine Mozambique
Withdraw Prognostic evaluation of neutrophil to lymphocyte ratio in ovarian cancer Amar RANJAN All India Institute of Medical Sciences, New Delhi India
Withdraw HISTOPATHOLOGICAL DIAGNOSTIC ISSUES OF THE MENINGIOMA Bat-Otgon BATDELGER National center for pathology in Mongolia Mongolia