Chronological Changes in Incidences of Polymorphic Reticulosis in Korea and Japan

Ohsawa, Masahiko; Shingu, Norihisa; Inohara, Hidenori; Kubo, Takashi; Yang, Woo-Ich; Yoon, Joo-Hyeon; Aozasa, Katsuyuki

doi:10.1159/000011966

Cited by 5 publications

(3 citation statements)

References 18 publications

(16 reference statements)

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“…At the late 1990s, otorhinolaryngologists in both Korea and Japan had the impression that the frequency of PR appeared to be decreasing. Then the changes in frequency of PR with time among cases from Seoul and 59 university hospitals in Japan were examined [ 68 ]: the frequency rate of PR per 100,000 outpatients of ENT clinics in Seoul decreased from 40 to 20 between the periods of 1977–1989 and 1990–1996. However, there were no significant changes in Japan during the period studies.…”

Section: Epidemiological Featuresmentioning

confidence: 99%

Nasal NK/T-cell lymphoma: epidemiology and pathogenesis

et al. 2008

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Nasal NK/T-cell lymphoma (NKTCL) is an uncommon disease, but usually shows a highly aggressive clinical course. The disease is much more frequent in Asian and Latin American countries than in Western countries, and is universally associated with Epstein–Barr virus (EBV) infection. Analyses of gene mutations, especially p53 and c-KIT, revealed the different frequencies by district. Epidemiological studies revealed the changes of the disease frequency in Korea during the period from 1977–1989 to 1990–1996. Case-control study showed that the exposure to pesticides and chemical solvents could be causative of NKTCL. Further studies including HLA antigen typing of patients is necessary to further clarify the disease mechanism.

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Section: Epidemiological Featuresmentioning

confidence: 99%

Nasal NK/T-cell lymphoma: epidemiology and pathogenesis

et al. 2008

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“…A recent retrospective study of the REAL classification addressed issues of the relative frequency of the subtypes of malignant lymphoma. 5–12 Special attention was focused on geographic differences, 5–34 which may be attributable to the differences in etiologic or host factors, and it gave new insight into the further understanding of lymphocytic disorders. The objective of the present study was to examine the distribution of the subtypes of malignant lymphomas in 3194 Japanese patients diagnosed according to the WHO classification.…”

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The World Health Organization classification of malignant lymphomas in Japan: Incidence of recently recognized entities

Fujita

Yamashiro

Ichinohasama

et al. 2000

Pathology International

352

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New insights into the immunology and genetics of malignant lymphomas have allowed the recognition of new entities and the refinement of previously recognized disease categories. The relative incidence of these subtypes of malignant lymphoma is also known to differ according to geographic location. In order to clarify the current status of malignant lymphomas in Japan and the relative incidences of their subtypes, 3194 patients were classified according to the new World Health Organization (WHO) classification. Among these were 3025 cases (94.71%) of non‐Hodgkin's lymphoma (2189 cases (68.53%) of B‐cell lymphoma, 796 cases (24.92%) of T‐cell lymphoma) and 141 cases (4.41%) of Hodgkin's lymphoma. The incidences of the major subtypes of non‐Hodgkin's lymphoma were 33.34% for diffuse large B‐cell lymphoma, 8.45% for marginal zone B‐cell lymphoma of mucosa‐associated lymphoid tissue (MALT) type, 8.05% for plasma cell myeloma, 7.45% for adult T‐cell leukemia/lymphoma (ATLL), 6.7% for follicular lymphoma, 6.67% for peripheral T‐cell lymphoma of unspecified type, 2.79% for mantle cell lymphoma, 2.6% for nasal and nasal‐type T/NK cell lymphoma, 2.35% for angioimmunoblastic T‐cell lymphoma, and 2.35% for precursor B‐cell lymphoblastic leukemia/lymphoma, in decreasing order. The other subtypes comprised less than 2%, mainly precursor T‐cell lymphoblastic lymphoma/leukemia (1.72%), anaplastic large‐cell lymphoma of T‐ and null‐cell types (1.53%), and B‐cell chronic lymphocytic leukemia/small lymphocytic lymphoma (1.31%). The incidence of ATLL was influenced by its high percentage (19.20%) in the south‐western Japanese island, Kyushu, an endemic area of human T‐cell leukemia virus type 1 (HTLV‐1), but which appeared to be lower than that in a previous study. The nodular sclerosis and mixed cellularity types of Hodgkin's disease occupied 1.78% and 1.63%, respectively. These data are distinct from those in Western countries and similar in several ways to those in the East, although the relatively high rate of ATLL was attributed to the geographical difference in the etiologic factor, HTLV‐1.

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“…7,8 However the frequency in Korea showed the marked decrease in the recent years. 10 Majority of sinonasal NKTCL is EBV-positive in every Asian countries and also in other areas of the world. [6][7][8][9] These findings suggest that EBV together with environmental factors might be causative for this disease.…”

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Sinonasal lymphomas in Indonesia: immunophenotype and Epstein-Barr virus association

Hardjolukito¹,

Kurniawan²,

Kodariah³

et al. 2004

Med J Indones

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AbstrakLimfoma sinonasal merupakan kelainan yang jarang dijumpai yang mencakup jenis sel NK/T atau sel B. Penelitian2 terdahulu menunjukkan adanya perbedaan angka kejadian limfoma NK/T (LNKT) yang sesuai daerah geografis serta kaitan yang sangat tinggi dengan infeksi virus Epstein Barr. Penelitian yang dilakukan terhadap 4l kasus penyakit limfoproliferatif sinonasal yang tersimpan di arsip Bagian Patologi Anatomik Fakultas Kedokteran Universitas Indonesia dalam kurun waktu 1994-2002 menunjukkan 35 kasus merupakan limfoma sinonasal. Pulasan imunohistokimia membuktikan 20 kasus (57%) sebagai LNKT dan 15 kasus (43%) limfoma sel B jenis sel besar. LNKT menunjukkan laki2 lebih banyak dari wanita (L:W=4:1) serta usia yng lebih muda (median 37 tahun); sedangkan limfoma sel B lebih banyak pada wanita (1:1.5) serta usia yang lebih tua (median 49 tahun). Hasil pemeriksaan genom virus Epstein Barr dengan cara hibridisasi in situ menggunakan pelacak EBER-1 menunjukkan 90% LNKT positif dan negatif pada semua limfoma sel B. Tulisan ini merupakan laporan limfoma sinonasal yang pertama dari Indonesia yang menunjukkan predominasi relatif limfoma sel B dibandingkan dengan beberapa negara Asia lainnya. Tidak adanya kaitan dengan virus Epstein Barr pada limfoma sel B juga berbeda dengan penemuan di negara Asia lain (positivitas 25-4l%) . Predominasi limfoma sel B tanpa kaitan dengan virus Epstein Barr mengarah pada kemungkinan adanya faktor etiologik yang spesifik untuk Indonesia. 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 Bcell 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)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(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)

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Chronological Changes in Incidences of Polymorphic Reticulosis in Korea and Japan

Cited by 5 publications

References 18 publications

Nasal NK/T-cell lymphoma: epidemiology and pathogenesis

Nasal NK/T-cell lymphoma: epidemiology and pathogenesis

The World Health Organization classification of malignant lymphomas in Japan: Incidence of recently recognized entities

Sinonasal lymphomas in Indonesia: immunophenotype and Epstein-Barr virus association

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