Maria F. Ham
Unknown Affiliation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Sinonasal lymphomas in Indonesia: immunophenotype and Epstein-Barr virus association Hardjolukito, Endang S.R.; Kurniawan, Antonius N.; Kodariah, Ria; Ham, Maria F.; Luo, Wen-Juan; Nakatsuka, Shin-Ichi; Aozasa, Katsuyuki
Medical Journal of Indonesia Vol 13, No 2 (2004): April-June
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.363 KB) | DOI: 10.13181/mji.v13i2.133

Abstract

Sinonasal lymphoma is a rare disease with NK/T-cell (NKTC) or B-cell immunophenotype. Previous study revealed the geographic difference in frequency of NKTC lymphoma (NKTCL) and almost constant association with Epstein-Barr virus (EBV) infection. Through review of 41 cases with sinonasal lymphoproliferative diseases registered in the Department of Anatomical Pathology, University of Indonesia during the period 1994 to 2002, thirty-five were accepted as sinonasal lymphoma. Immunohistochemistry revealed that 20 cases (57%) were NK/T-cell type and 15 (43%) B-cell type with large cell morphology, i.e.,diffuse large B-cell lymphoma. NKTCL showed a marked male preponderance (M/F= 4:1) and younger onset of disease (median age, 37 years), and B-cell lymphoma showed a relative female preponderance (1:1.5) and older disease onset (median age, 49 years). In situ hybridization using EBER-1 probe revealed that 90% of NKTCL were EBV-positive, but none of B-cell lymphoma were EBV-positive. This is the first report on sinonasal lymphoma in Indonesia showing relative predominance of B-cell lymphoma compared to other Asian countries and Peru (14-24%). Lack of EBV-association in Indonesian sinonasal B-cell lymphoma showed a marked contrast to that in other Asian countries (EBV positive rate, 25-41 %). Predominance of sinonasal B-cell lymphoma without EBV genome might suggest presence of specific etiologic factors in Indonesia. (Med J Indones 2004; 13: 71-6) Keywords: sinonasal lymphoma, B-cell, NK/T-cell, Epstein-Barr virus, Indonesia
The Profile of P63 Expression and Epstein-Barr-Encoded RNA (EBER) Distribution in Primary Central Nervous System Lymphoma: A Retrospective Bi-Center Study Kristiani, Erna; Marisca, Stephanie; Suharyani, Sally; Dermawan, Kevin; Widodo, Stephanie T.; Ham, Maria F.; Harahap, Agnes S.; Susanto, Eka; Tjahjadi, Hartono; July, Julius
Medicinus Vol. 14 No. 2 (2025): February
Publisher : Fakultas Kedokteran Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/med.v14i2.9545

Abstract

Background : Primary central nervous system lymphoma (PCNSL) is a type of lymphoma occurring around 0.5 – 1.2% of all intracranial neoplasms. However, recent epidemiological research shows a threefold increase in the number of cases. The Epstein-Barr virus (EBV) and PCNSL are both associated with the condition of immunosuppression or immunodeficiency, which often found to have a significant relationship with each other. Moreover, the TP63 mutation is associated with a poor prognosis. Methods : This is a descriptive study to assess the expression of TP63 and EBER on PCNSL, and present the characteristics of the disease. The study was conducted on 25 cases from two health centers with the most cases of brain tumors in Indonesia, Siloam Hospital Lippo Village and Cipto Mangunkusumo Hospital (CMH) from 2014 to 2018, the P63 expression and EBER-1 examinations were done by 4 pathologists. A total of 25 patients, 13 (52%) patients were male, ranging from age 30 – 79, with average 57,6 years old, located mostly in the frontal lobe in 8 patients (30.9%). Result : From the research results obtained positive P63 results in 20 cases (80%), while the EBER test was negative for all 25 patients. Further analysis with software SPSS 25 proving that P63 expression is not associated with germinal center B-cell type (GCB) or non-GCB type (p-value 0,87). Neither, P63 have any association with Ki67 with p-value of 1.00. Conclusions : This study concludes that there is a possibility that PCNSL cases in Indonesia are not associated with Epstein-Barr virus infection, but most of the cases will have a poor prognosis as indicated by P63 expression.