Table 1 Clinical and dynamic contrast-enhanced CT imaging characteristics of pancreatic adenocarcinomas with cystic lesions
Variables | Total (n = 40) | Type1 (n = 21) | Type 2 (n = 6) | Type3 (n = 13) |
|---|---|---|---|---|
Mean age (y)* | 60.4 ± 10.2 | 59.1 ± 8.4 | 58.5 ± 9.8 | 63.3 ± 12.9 |
Sex | ||||
male | 22 (55%) | 9(42.9%) | 4 (66.7%) | 9 (69.2%) |
female | 18(45%) | 12 (57.1%) | 2 (33.3%) | 4 (30.8%) |
CA199 | ||||
<37 U/mL | 5 (12.5%) | 2 (9.6%) | 1 (16.7%) | 2 (15.4%) |
≥ 37 U/mL | 35 (87.5%) | 19 (90.4%) | 5 (83.3%) | 11 (84.6%) |
Size (cm)† | 4.3 (3.2, 5.6) | 4.1 (3.2, 5.2) | 5.4 (3.9, 6.3) | 3.9 (2.8, 5.8) |
Location | ||||
head/uncinate | 11 (27.5%) | 6 (28.6%) | 1 (16.7%) | 4 (30.8%) |
body/ tail | 23 (57.5%) | 11 (52.4%) | 4 (66.7%) | 8 (61.5%) |
simultaneously involved | 6 (15%) | 4 (19.0%) | 1 (16.7%) | 1 (7.7%) |
Tumor Contour bulging | ||||
Absence | 0(0) | 0(0) | 0(0) | 0(0) |
Presence | 40 (100%) | 21 (100%) | 6 (100%) | 13 (100%) |
Enhancement pattern on DCE-CT | ||||
isoattenuating | 4 (10%) | 1 (4.8%) | 1 (16.7%) | 2 (15.4%) |
hypoattenuating | 36 (90%) | 20 (95.2%) | 5 (83.3%) | 11 (84.6%) |
Secondary signs& | 35 (87.5%) | 19(90.5%) | 5 (83.3%) | 11(84.6%) |
pancreatic duct abnormalities | 34 (85%) | 19 (90.5%) | 5 (83.3%) | 10 (76.9%) |
biliary tree abnormalities | 10 (25%) | 6 (28.6%) | 0 (0) | 4 (30.8%) |
pancreatic parenchymal atrophy | 24 (60%) | 13(61.9%) | 3 (50%) | 8 (61.5%) |
vascular invasion | 31 (77.5%) | 16 (76.2%) | 6 (100%) | 9 (69.2%) |
peripancreatic organ invasion or distant metastases | 24(60%) | 11(52.4%) | 6(100%) | 7(50%) |
Missed diagnosis | 1 (2.5%) | 1 (5%) | 0 (0) | 0 (0) |
Misinterpreted diagnosis | 14 (35%) | 4 (19%) | 5 (83.3%) | 5 (38.5%) |