Table 1.
Demographics and clinicopathologic features in 454 patients with distal pancreatic adenocarcinoma
| Feature | No. of patients (%) |
|---|---|
| Age, years (mean ± SD) | 67.1 ± 10.1 |
| Sex | |
| Female | 243 (53.5) |
| Male | 211 (46.5) |
| Type of cancer | |
| Invasive IPMN | 78 (17.2) |
| Non-IPMN-associated carcinoma | 376 (82.8) |
| Tumor location | |
| Tail | 229 (50.4) |
| Body | 146 (32.2) |
| Tail/body | 73 (16.1) |
| Tail/body/head | 6 (1.3) |
| Histopathologic differentiation | |
| Well | 41 (9.0) |
| Moderate | 271 (59.7) |
| Poor | 128 (28.2) |
| Unknown | 14 (3.1) |
| T category, n (%) | |
| T1 | 76 (16.7) |
| T2 | 202 (44.5) |
| T3 | 166 (36.6) |
| Tx | 10 (2.2%) |
| Lymph-node metastasis | |
| Positive | 238 (52.4) |
| Negative | 216 (47.6) |
| Post-operative adjuvant chemotherapy | |
| Yes | 84 (18.5) |
| No | 303 (66.7) |
| Unknown | 67 (14.8) |
| Pathologic SA invasion | |
| Present | 25 (5.5) |
| Absent | 249 (54.8) |
| Not reported | 180 (39.6) |
| Pathologic SV invasion | |
| Present | 53 (11.7) |
| Absent | 220 (48.5) |
| Not reported | 181 (39.9) |
| Splenic parenchymal invasion | |
| Present | 25 (5.5) |
| Absent | 425 (93.6) |
| Not reported | 4 (0.9) |
| Radiographic SA invasion | |
| Present | 73 (16.1) |
| Absent | 242 (53.3) |
| Not examined | 139 (30.6) |
| Radiographic SV invasion | |
| Present | 93 (20.5) |
| Absent | 228 (50.2) |
| Not examined | 133 (29.3) |
IPMN, intraductal papillary mucosal neoplasm; SA, splenic artery; SV, splenic vein; Tx, pathologic tumor stage not specified.