12th Ljudevit Jurak International Symposium on
Comparative Pathology
Zagreb
June 1-2, 2001
 

POSTER PRESENTATION
CLINICOPATHOLOGICAL FEATURES OF PRIMARY INTESTINAL LYMPHOMA IN TAIWAN: A STUDY OF 28 RESECTED CASES
Shih-Sung Chuang, Ching-Nan Lin
Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan
Aim: We conducted this retrospective study for a better understanding of primary intestinal lymphoma (PIL) in Taiwan.
Methods: We studied 28 surgically resected cases with a review of history and H&E sections and paraffin immunohistochemistry.
Results: There were 16 males and 12 females. The median age was 66. The major presenting symptom was abdominal pain (n = 19, 67.9%). 10 patients (35.7%) were complicated with perforation at presentation. Two patients had multicentric tumors. The most common location of lymphoma involvement was the ileum (n = 14, 50.0%). 26 cases (92.9%) were of B-cell lineage and 2 (7.1%) T-cell. They were classified according to REAL as diffused large B-cell lymphoma (n = 20, 71.4%), extranodal marginal zone B-cell lymphoma (n = 3, 10.7%), Burkitt’s lymphoma (n = 2), follicular lymphoma (n = 1), and intestinal T-cell lymphoma (n = 2). Seven died of complications within 2 months after operation and 2 were lost to follow-up. Of the remaining 19 patients, there were 5 deaths within one year. The 1- and 2-yr survival rate was 66.7% and 41.6%, respectively.
Conclusion: In this study, we have characterized the clinicopathological findings of one case each of appendiceal MZL and ileal CD30+ enteropathy-associated T-cell lymphoma. We found that PIL in Taiwan occurs in old age group with a slight male predominance and a relatively aggressive clinical course. We confirmed  that  the PIL in Taiwan shows the pattern of the Western type.
Poster Presentation