Abstract
In a population-based registry of 580 patients with non-Hodgkin's lymphoma (NHL) 54 patients had a primary gastric lymphoma, 42 an intestinal, 113 a primary extranodal lymphoma localised elsewhere than in the gastrointestinal tract and 371 a primary nodal NHL. Histological specimens were reviewed by a panel of pathologists and classified according to the Kiel classification and the International Working Formulation. The 4-year survival rates for primary gastric, intestinal, other extranodal and nodal NHL ranged from 50 to 60%; the 4-year recurrence-free survival rates were 50%, 35%, 19% and 19%, respectively. Among patients with localised intermediate-grade disease survival for those with gastric NHL was better than for those with intestinal lymphoma. Because it is population-based, our study cohort was not subjected to exclusion due to age, performance scale, etc. and therefore provides a more realistic picture of the occurrence and presentation of as well as prognosis for lymphoma in the population.
Highlights
Out of 640 new cases of non-Hodgkin's lymphoma (NHL) registered from 1 June 1981, to I September 1986, 580 were evaluable; the registration forms of 60 patients were incomplete, 30 of whom were lost to follow-up
Thirteen of the intestinal NHLs were localised in the small intestine, 16 in the large bowel and rectum, three at multiple intestinal sites and 10 in the mesentery
Because the numbers of patients per subsite were too small, we analysed these patients with intestinal NHL as one group, it is a very heterogeneous group
Summary
A population-based registry of all new cases of NHL within the region of the CCCW was started on 1 June 1981, and is still ongoing. For this study, data entry of new cases ended on 1 September 1986, while entry of follow-up data ended on 31 December 1987. All hospitals (15) and pathological laboratories (9) in the region participated through the NHL Study Group, which consists of 45 specialists. Collection of data and quality controls were performed by the NHL registrars of the CCCW. Included were all newly diagnosed patients with NHL except those with. Received 22 November 1988; and in revised form 6 March 1989
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