Clinical and morphological features of primary gastric lymphomas
| LG | LG+HG | DLCL | Total | Mantle cell | T cell | Burkitt's like | |
|---|---|---|---|---|---|---|---|
| Number of cases | 29 | 70 | 53 | 152 | 3 | 3 | 1 |
| Age range (mean) in years | 31–81 (60.06) | 43–89 (64.31) | 33–86 (66.39) | 57–78 (68.66) | 62–70 (66.6) | 72 | |
| Adjuvant therapy (%) | 9 (32.1) | 32 (49.2) | 32 (72.7) | 73 | 2 | 2 | – |
| Location (%) | |||||||
| Antrum | 8 (27.6) | 21 (30) | 17 (32.1) | 46 | 1 | 2 | 1 |
| Body | 8 (27.6) | 15 (21.4) | 13 (24.5) | 36 | – | 1 | – |
| Fundus | 1 (3.4) | 6 (8.6) | 3 (5.6) | 10 | – | – | – |
| Diffuse | 12 (41.4) | 28 (40) | 20 (37.7) | 60 | 2 | – | – |
| Macroscopic type (%) | |||||||
| Ulcerated | 12 (41.4) | 46 (66.6) | 37 (69.8) | 95 | 2 | 3 | – |
| Polypoid | 5 (17.2) | 12 (17.4) | 11 (20.7) | 28 | – | – | 1 |
| Flat | 12 (41.4) | 11 (15.9) | 5 (9.4) | 28 | 1 | – | – |
| Size range (mean) in cm | 2–12 (6.6) | 1–17 (7.7) | 2.3–17 (8.2) | 5–10 (8.3) | 5–7 (6.2) | 8 | |
| Depth of infiltration (%) | |||||||
| Mucosa | 3 (10.3) | 1 (1.4) | 1 (1.9) | 5 | 1 | – | – |
| Submucosa | 13 (44.8) | 21 (30) | 2 (3.8) | 36 | – | 1 | – |
| Muscolaris | 5 (17.2) | 13 (18.6) | 6 (11.3) | 24 | – | – | – |
| Serosa | 8 (27.6) | 35 (50) | 44 (83) | 87 | 2 | 2 | 1 |
| Stage (%) | |||||||
| IE1 | 7 (24.1) | 18 (25.7) | 2 (3.8) | 27 | – | – | – |
| IE2 | 1 (3.4) | 14 (20) | 13 (24.5) | 28 | – | 1 | – |
| IIE1 | 17 (58.6) | 21 (30) | 27 (50.9) | 65 | – | – | – |
| IIE2 | 2 (6.9) | 8 (11.4) | 3 (5.7) | 13 | 1 | 2 | – |
| IIIE | – | – | – | – | 1 | – | – |
| IIIES | – | 2 (2.9) | 1 (1.9) | 3 | – | – | – |
| IVE | 2 (6.9) | 7 (10) | 7 (13.2) | 16 | 1 | – | 1 |
| MIB-1 range (mean) in % of positive nuclei | 0.5–28.9 (8.5) | 16.1–96.4 (49.7) | 14.1–90.6 (53.3) | 5.4–33 (15.6) | 35.4–72.2 (48.59) | ||