Table 1. Endoscopic classification of primary small intestinal lymphoma Table 2. Clinical characteristics (per patient)

Values are presented as median (interquartile range) or number (%).

CT, computed tomography; DLBCL, diffuse large B-cell lymphoma; MALT lymphoma, marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue; EBV, Epstein-Barr virus.

Table 3. Distribution of endoscopic and histologic findings (per lesion)

Values are presented as number (%). Fisher’s exact test, p<0.001. Cramér’s V coefficient=0.41; 95% confidence interval, 0.40–0.59.

DLBCL, diffuse large B-cell lymphoma; MALT lymphoma, marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue; EBV, Epstein-Barr virus.

Table 4. Diagnostic performance of selected findings for predicting histologic type

CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; DLBCL, diffuse large B-cell lymphoma.

Table 5. Anatomical distribution of histologic types

DLBCL, diffuse large B-cell lymphoma; MALT lymphoma, marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue; EBV, Epstein-Barr virus.

Table 6. Comparison of endoscopic findings and biopsy diagnosis rates

Values are presented as number (%).

Table 7. Comparison of histologic type and biopsy diagnosis rates

Values are presented as number (%).

DLBCL, diffuse large B-cell lymphoma; MALT lymphoma, marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue; EBV, Epstein-Barr virus.