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T-Cllo Lymphma, Nasal Lymphoma, Mexico
Nasal, natural-killer T-cell lymphoma (nasal NKTCL ), is a rare presentation of extranodal lymphoma in North-America and Europe, but in some countries, as China and Korea, it is extremely common: 20 to 46 % of T-cell lymphomas. Some studies, analyzed the incidence in Latin-America, but Mexico, based on political and geographic considerations, was not included in these reports. Thus, we performed a retrospective analysis of the patients diagnosed and treated as nasal, NKTCL, in our institution, that is an academic tertiary national reference hospital. From 1988 to 2014, we diagnosed and treated 14,816 cases of non-Hodgkin’s lymphoma, 10,957 (73%) were of B-cell histology and 3822 (26%) were of T-cell histology. Nasal, NKTCL, was the most frequent of the T-cell histology: 40%. We compare our results with other countries and observed that nasal, NKTCL has a low number of cases in North-America, and some countries in Latin-America, as Argentina, Brazil and Chile, but our number will be similar to Guatemala and Peru, that were similar to China and Korea. We think that this neoplasm has a racial basis, independent of environmental factors.