Table 2 PAM staining intensity according to the anatomic location of the primary NET.
From: PAM staining intensity of primary neuroendocrine neoplasms is a potential prognostic biomarker
Tumor site | PAM expression group | Mean (SD) staining intensity | p-valuea | |||
|---|---|---|---|---|---|---|
Negative (0) 8 (7%) | Low (1) 52 (48%) | High (2 to 4) 49 (45%) | All Patients 109 | |||
Total | 2.2 (1.2) | |||||
Lung | 4 (13.3) | 13 (43.3) | 13 (43.3) | 30 (27.5) | 2.1 (1.3) | 0.64 |
Lobe | 4 (14.3) | 11 (39.3) | 13 (46.4) | 28 (25.7) | ||
Bronchus | 0 | 2 (100.0) | 0 | 2 (1.8) | ||
Small bowel | 0 | 9 (37.5) | 15 (62.5) | 24 (22.0) | 2.7 (1.1) | 0.04 |
Duodenal | 0 | 3 (60.0) | 2 (40.0) | 5 (4.6) | ||
Jejunum | 0 | 1 (100.0) | 0 | 1 (0.9) | ||
Ileum | 0 | 3 (23.1) | 10 (76.9) | 13 (11.9) | ||
Pancreas | 0 | 10 (41.7) | 14 (58.3) | 24 (22.0) | 2.5 (1.1) | 0.14 |
Large bowel | 2 (10.5) | 11 (57.9) | 6 (31.6) | 19 (17.4) | 1.9 (1.2) | 0.20 |
Colon | 2 (25.0) | 5 (62.5) | 1 (12.5) | 8 (7.3) | ||
Appendix | 0 | 2 (66.7) | 1 (33.3) | 3 (2.8) | ||
Rectal | 0 | 4 (50.0) | 4 (50.0) | 8 (7.3) | ||
Stomach | 0 | 7 (100.0) | 0 | 7 (6.4) | 1.4 (0.5) | 0.004 |
Ovary | 0 | 0 | 1 (100.0) | 1 (0.9) | NA | |
Uterus | 1 (100.0) | 0 | 0 | 1 (0.9) | NA | |
Mediastinum | 1 (100.0) | 0 | 0 | 1 (0.9) | NA | |
Bladder | 0 | 1 (100.0) | 0 | 1 (0.9) | NA | |
Mesentery | 0 | 1 (100.0) | 0 | 1 (0.9) | NA | |
