title: [Extranodal lymphomas in adults in Szabolcs-Szatmár-Bereg county, Hungary. Analysis of 30 years' epidemiologic data].
abstract: BACKGROUND
  In their previous work, the authors reported 27-year' findings on the epidemiology of extranodal lymphomas in Szabolcs-Szatmár-Bereg county, Hungary. There are no other studies on this topic available in Hungary.
  
  
  OBJECTIVE
  The aim of this study was to analyse in detail the epidemiologic data of patients with non-Hodgkin's lymphoma who were recorded in the leukaemia/lymphoma registry of Szabolcs-Szatmár-Bereg county during a 30-year period, to compare the main epidemiologic features of the extranodal and nodal forms, and compare the results with data reported in the international literature.
  
  
  METHODS
  Between January 1, 1983 and December 31, 2012, 1123 adult patients with newly diagnosed non-Hodgkin's lymphoma were recorded in the leukaemia/lymphoma registry of Szabolcs-Szatmár-Bereg county. Of those, 347 patients suffered from extranodal, and 776 patients from nodal form of non-Hodgkin's lymphoma. The authors compared the incidence of the extranodal and nodal forms, the age and sex distribution of patients, the ratio of B- and T-cell, as well as the indolent and aggressive forms, the geographic distribution and the association with carcinomas. In addition, they studied the occurrence of familial appearance and the localisation of extranodal forms.
  
  
  RESULTS
  The occurrence of non-Hodgkin's lymphomas indicated an increasing tendency in their county. This tendency was true for both the extranodal and nodal forms, but it was more remarkable in the extranodal form of lymphomas. They found no substantial difference between the main epidemiologic features of the two forms. The gastrointestinal tract was the most frequent site of presentation for extranodal lymphomas.
  
  
  CONCLUSIONS
  These observations are in line with data reported in the international literature. The data are essentially similar to those published in populations from Western European countries and the United States.
authors.affiliation: Szabolcs-Szatmár-Bereg Megyei Jósa András Oktatókórház Hematológiai Osztály Nyíregyháza.
authors.forename: János
authors.initials: J
authors.lastname: Jakó
authors.affiliation: Szabolcs-Szatmár-Bereg Megyei Jósa András Oktatókórház Hematológiai Osztály Nyíregyháza.
authors.forename: László
authors.initials: L
authors.lastname: Szerafin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D006814:Hungary / Q000453:epidemiology; D015994:Incidence; D008223:Lymphoma / Q000453:epidemiology; D008228:Lymphoma, Non-Hodgkin / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012042:Registries; D017678:Sex Distribution; D055815:Young Adult
keywords: a női és a férfi genitális traktus lymphomái; breast lymphoma; bőrlymphoma; central nervous system lymphoma; cutaneous lymphoma; emlőlymphoma; epidemiology; epidemiológia; gastrointestinal lymphoma; gastrointestinalis lymphoma; központi idegrendszeri lymphoma; lymphoma of soft tissues; lymphoma of the thyroid gland; lymphomas of the female and male genital tract; lágyrész-lymphoma; nodal and extranodal lymphomas; nodalis és extranodalis lymphomák; non-Hodgkin-lymphoma; non-Hodgkin’s lymphoma; pajzsmirigylymphoma; tonsillalymphoma; tonsillar lymphoma