Histopathological findings according to the radiological aspect of the mesopancreas
| . | Mesopancreas fat . | P . | |||||
|---|---|---|---|---|---|---|---|
| Overall, n = 149 . | NF, n = 82 . | FS, n = 47 . | SI, n = 20 . | NF/FS . | NF/SI . | FS/SI . | |
| Type of carcinoma | 0.403 | >0.999 | 0.418 | ||||
| Ductal | 131 (87.9) | 71 (86.6) | 43 (91.5) | 17 (85.0) | |||
| Associated with an IPMN | 18 (12.1) | 11 (13.4) | 4 (8.5) | 3 (15.0) | |||
| Tumour differentiation | 0.409 | 0.095 | 0.209 | ||||
| Well | 52 (34.9) | 34 (41.5) | 13 (27.7) | 5 (25.0) | |||
| Moderate | 70 (47.0) | 35 (42.7) | 23 (48.9) | 12 (60.0) | |||
| Poor | 18 (12.1) | 11 (13.4) | 7 (14.9) | 0 (0.0) | |||
| Unknown | 9 (6.0) | 2 (2.4) | 4 (8.5) | 3 (15.0) | |||
| Pathological tumour size (mm), median (i.q.r.) | 30 (23–40) | 26 (22–35) | 34 (26–43) | 38 (26–49) | 0.002* | 0.006* | 0.651 |
| Lymph node status | 0.052 | 0.283 | 0.756 | ||||
| Negative | 46 (30.9) | 31 (37.8) | 10 (21.3) | 5 (25.0) | |||
| Positive | 103 (69.1) | 51 (62.2) | 37 (78.7) | 15 (75.0) | |||
| Perineural invasion | 0.502 | >0.999 | 0.741 | ||||
| No | 30 (20.1) | 18 (22.0) | 8 (17.0) | 4 (20.0) | |||
| Yes | 119 (79.9) | 64 (78.0) | 39 (83.0) | 16 (80.0) | |||
| Lymphatic invasion | 0.855 | 0.769 | 0.689 | ||||
| No | 69 (46.3) | 38 (46.3) | 21 (44.7) | 10 (50.0) | |||
| Yes | 80 (53.7) | 44 (53.7) | 26 (55.3) | 10 (50.0) | |||
| Microvascular invasion | 0.739 | 0.424 | 0.609 | ||||
| No | 93 (62.4) | 53 (64.6) | 29 (61.7) | 11 (55.0) | |||
| Yes | 56 (37.6) | 29 (35.4) | 18 (38.3) | 9 (45.0) | |||
| SMV margin | 0.333 | 0.022* | 0.249 | ||||
| Free | 82 (55.0) | 52 (63.4) | 24 (51.1) | 6 (30.0) | |||
| ≤1mm | 38 (25.5) | 16 (19.5) | 14 (29.8) | 8 (40.0) | |||
| Invasion | 29 (19.5) | 14 (17.1) | 9 (19.1) | 6 (30.0) | |||
| SMA margin | 0.159 | 0.050* | 0.315 | ||||
| Free | 77 (51.7) | 49 (59.8) | 20 (42.6) | 8 (40.0) | |||
| ≤1mm | 41 (27.5) | 21 (25.6) | 16 (34.0) | 4 (20.0) | |||
| Invasion | 31 (20.8) | 12 (14.6) | 11 (23.4) | 8 (40.0) | |||
| Resection status | 0.473 | 0.033* | 0.206 | ||||
| R0 | 54 (36.2) | 35 (42.7) | 15 (31.9) | 4 (20.0) | |||
| R1 indirect | 48 (32.2) | 26 (31.7) | 17 (36.2) | 5 (25.0) | |||
| R1 direct | 47 (31.5) | 21 (25.6) | 15 (31.9) | 11 (55.0) | |||
| . | Mesopancreas fat . | P . | |||||
|---|---|---|---|---|---|---|---|
| Overall, n = 149 . | NF, n = 82 . | FS, n = 47 . | SI, n = 20 . | NF/FS . | NF/SI . | FS/SI . | |
| Type of carcinoma | 0.403 | >0.999 | 0.418 | ||||
| Ductal | 131 (87.9) | 71 (86.6) | 43 (91.5) | 17 (85.0) | |||
| Associated with an IPMN | 18 (12.1) | 11 (13.4) | 4 (8.5) | 3 (15.0) | |||
| Tumour differentiation | 0.409 | 0.095 | 0.209 | ||||
| Well | 52 (34.9) | 34 (41.5) | 13 (27.7) | 5 (25.0) | |||
| Moderate | 70 (47.0) | 35 (42.7) | 23 (48.9) | 12 (60.0) | |||
| Poor | 18 (12.1) | 11 (13.4) | 7 (14.9) | 0 (0.0) | |||
| Unknown | 9 (6.0) | 2 (2.4) | 4 (8.5) | 3 (15.0) | |||
| Pathological tumour size (mm), median (i.q.r.) | 30 (23–40) | 26 (22–35) | 34 (26–43) | 38 (26–49) | 0.002* | 0.006* | 0.651 |
| Lymph node status | 0.052 | 0.283 | 0.756 | ||||
| Negative | 46 (30.9) | 31 (37.8) | 10 (21.3) | 5 (25.0) | |||
| Positive | 103 (69.1) | 51 (62.2) | 37 (78.7) | 15 (75.0) | |||
| Perineural invasion | 0.502 | >0.999 | 0.741 | ||||
| No | 30 (20.1) | 18 (22.0) | 8 (17.0) | 4 (20.0) | |||
| Yes | 119 (79.9) | 64 (78.0) | 39 (83.0) | 16 (80.0) | |||
| Lymphatic invasion | 0.855 | 0.769 | 0.689 | ||||
| No | 69 (46.3) | 38 (46.3) | 21 (44.7) | 10 (50.0) | |||
| Yes | 80 (53.7) | 44 (53.7) | 26 (55.3) | 10 (50.0) | |||
| Microvascular invasion | 0.739 | 0.424 | 0.609 | ||||
| No | 93 (62.4) | 53 (64.6) | 29 (61.7) | 11 (55.0) | |||
| Yes | 56 (37.6) | 29 (35.4) | 18 (38.3) | 9 (45.0) | |||
| SMV margin | 0.333 | 0.022* | 0.249 | ||||
| Free | 82 (55.0) | 52 (63.4) | 24 (51.1) | 6 (30.0) | |||
| ≤1mm | 38 (25.5) | 16 (19.5) | 14 (29.8) | 8 (40.0) | |||
| Invasion | 29 (19.5) | 14 (17.1) | 9 (19.1) | 6 (30.0) | |||
| SMA margin | 0.159 | 0.050* | 0.315 | ||||
| Free | 77 (51.7) | 49 (59.8) | 20 (42.6) | 8 (40.0) | |||
| ≤1mm | 41 (27.5) | 21 (25.6) | 16 (34.0) | 4 (20.0) | |||
| Invasion | 31 (20.8) | 12 (14.6) | 11 (23.4) | 8 (40.0) | |||
| Resection status | 0.473 | 0.033* | 0.206 | ||||
| R0 | 54 (36.2) | 35 (42.7) | 15 (31.9) | 4 (20.0) | |||
| R1 indirect | 48 (32.2) | 26 (31.7) | 17 (36.2) | 5 (25.0) | |||
| R1 direct | 47 (31.5) | 21 (25.6) | 15 (31.9) | 11 (55.0) | |||
Values are n (%) unless otherwise indicated. *Statistically significant. NF, normal fat; FS, fat stranding; SI, solid infiltration; IPMN, intraductal papillary mucinous neoplasm; i.q.r., interquartile range; SMV, superior mesenteric vein; SMA, superior mesenteric artery.
Histopathological findings according to the radiological aspect of the mesopancreas
| . | Mesopancreas fat . | P . | |||||
|---|---|---|---|---|---|---|---|
| Overall, n = 149 . | NF, n = 82 . | FS, n = 47 . | SI, n = 20 . | NF/FS . | NF/SI . | FS/SI . | |
| Type of carcinoma | 0.403 | >0.999 | 0.418 | ||||
| Ductal | 131 (87.9) | 71 (86.6) | 43 (91.5) | 17 (85.0) | |||
| Associated with an IPMN | 18 (12.1) | 11 (13.4) | 4 (8.5) | 3 (15.0) | |||
| Tumour differentiation | 0.409 | 0.095 | 0.209 | ||||
| Well | 52 (34.9) | 34 (41.5) | 13 (27.7) | 5 (25.0) | |||
| Moderate | 70 (47.0) | 35 (42.7) | 23 (48.9) | 12 (60.0) | |||
| Poor | 18 (12.1) | 11 (13.4) | 7 (14.9) | 0 (0.0) | |||
| Unknown | 9 (6.0) | 2 (2.4) | 4 (8.5) | 3 (15.0) | |||
| Pathological tumour size (mm), median (i.q.r.) | 30 (23–40) | 26 (22–35) | 34 (26–43) | 38 (26–49) | 0.002* | 0.006* | 0.651 |
| Lymph node status | 0.052 | 0.283 | 0.756 | ||||
| Negative | 46 (30.9) | 31 (37.8) | 10 (21.3) | 5 (25.0) | |||
| Positive | 103 (69.1) | 51 (62.2) | 37 (78.7) | 15 (75.0) | |||
| Perineural invasion | 0.502 | >0.999 | 0.741 | ||||
| No | 30 (20.1) | 18 (22.0) | 8 (17.0) | 4 (20.0) | |||
| Yes | 119 (79.9) | 64 (78.0) | 39 (83.0) | 16 (80.0) | |||
| Lymphatic invasion | 0.855 | 0.769 | 0.689 | ||||
| No | 69 (46.3) | 38 (46.3) | 21 (44.7) | 10 (50.0) | |||
| Yes | 80 (53.7) | 44 (53.7) | 26 (55.3) | 10 (50.0) | |||
| Microvascular invasion | 0.739 | 0.424 | 0.609 | ||||
| No | 93 (62.4) | 53 (64.6) | 29 (61.7) | 11 (55.0) | |||
| Yes | 56 (37.6) | 29 (35.4) | 18 (38.3) | 9 (45.0) | |||
| SMV margin | 0.333 | 0.022* | 0.249 | ||||
| Free | 82 (55.0) | 52 (63.4) | 24 (51.1) | 6 (30.0) | |||
| ≤1mm | 38 (25.5) | 16 (19.5) | 14 (29.8) | 8 (40.0) | |||
| Invasion | 29 (19.5) | 14 (17.1) | 9 (19.1) | 6 (30.0) | |||
| SMA margin | 0.159 | 0.050* | 0.315 | ||||
| Free | 77 (51.7) | 49 (59.8) | 20 (42.6) | 8 (40.0) | |||
| ≤1mm | 41 (27.5) | 21 (25.6) | 16 (34.0) | 4 (20.0) | |||
| Invasion | 31 (20.8) | 12 (14.6) | 11 (23.4) | 8 (40.0) | |||
| Resection status | 0.473 | 0.033* | 0.206 | ||||
| R0 | 54 (36.2) | 35 (42.7) | 15 (31.9) | 4 (20.0) | |||
| R1 indirect | 48 (32.2) | 26 (31.7) | 17 (36.2) | 5 (25.0) | |||
| R1 direct | 47 (31.5) | 21 (25.6) | 15 (31.9) | 11 (55.0) | |||
| . | Mesopancreas fat . | P . | |||||
|---|---|---|---|---|---|---|---|
| Overall, n = 149 . | NF, n = 82 . | FS, n = 47 . | SI, n = 20 . | NF/FS . | NF/SI . | FS/SI . | |
| Type of carcinoma | 0.403 | >0.999 | 0.418 | ||||
| Ductal | 131 (87.9) | 71 (86.6) | 43 (91.5) | 17 (85.0) | |||
| Associated with an IPMN | 18 (12.1) | 11 (13.4) | 4 (8.5) | 3 (15.0) | |||
| Tumour differentiation | 0.409 | 0.095 | 0.209 | ||||
| Well | 52 (34.9) | 34 (41.5) | 13 (27.7) | 5 (25.0) | |||
| Moderate | 70 (47.0) | 35 (42.7) | 23 (48.9) | 12 (60.0) | |||
| Poor | 18 (12.1) | 11 (13.4) | 7 (14.9) | 0 (0.0) | |||
| Unknown | 9 (6.0) | 2 (2.4) | 4 (8.5) | 3 (15.0) | |||
| Pathological tumour size (mm), median (i.q.r.) | 30 (23–40) | 26 (22–35) | 34 (26–43) | 38 (26–49) | 0.002* | 0.006* | 0.651 |
| Lymph node status | 0.052 | 0.283 | 0.756 | ||||
| Negative | 46 (30.9) | 31 (37.8) | 10 (21.3) | 5 (25.0) | |||
| Positive | 103 (69.1) | 51 (62.2) | 37 (78.7) | 15 (75.0) | |||
| Perineural invasion | 0.502 | >0.999 | 0.741 | ||||
| No | 30 (20.1) | 18 (22.0) | 8 (17.0) | 4 (20.0) | |||
| Yes | 119 (79.9) | 64 (78.0) | 39 (83.0) | 16 (80.0) | |||
| Lymphatic invasion | 0.855 | 0.769 | 0.689 | ||||
| No | 69 (46.3) | 38 (46.3) | 21 (44.7) | 10 (50.0) | |||
| Yes | 80 (53.7) | 44 (53.7) | 26 (55.3) | 10 (50.0) | |||
| Microvascular invasion | 0.739 | 0.424 | 0.609 | ||||
| No | 93 (62.4) | 53 (64.6) | 29 (61.7) | 11 (55.0) | |||
| Yes | 56 (37.6) | 29 (35.4) | 18 (38.3) | 9 (45.0) | |||
| SMV margin | 0.333 | 0.022* | 0.249 | ||||
| Free | 82 (55.0) | 52 (63.4) | 24 (51.1) | 6 (30.0) | |||
| ≤1mm | 38 (25.5) | 16 (19.5) | 14 (29.8) | 8 (40.0) | |||
| Invasion | 29 (19.5) | 14 (17.1) | 9 (19.1) | 6 (30.0) | |||
| SMA margin | 0.159 | 0.050* | 0.315 | ||||
| Free | 77 (51.7) | 49 (59.8) | 20 (42.6) | 8 (40.0) | |||
| ≤1mm | 41 (27.5) | 21 (25.6) | 16 (34.0) | 4 (20.0) | |||
| Invasion | 31 (20.8) | 12 (14.6) | 11 (23.4) | 8 (40.0) | |||
| Resection status | 0.473 | 0.033* | 0.206 | ||||
| R0 | 54 (36.2) | 35 (42.7) | 15 (31.9) | 4 (20.0) | |||
| R1 indirect | 48 (32.2) | 26 (31.7) | 17 (36.2) | 5 (25.0) | |||
| R1 direct | 47 (31.5) | 21 (25.6) | 15 (31.9) | 11 (55.0) | |||
Values are n (%) unless otherwise indicated. *Statistically significant. NF, normal fat; FS, fat stranding; SI, solid infiltration; IPMN, intraductal papillary mucinous neoplasm; i.q.r., interquartile range; SMV, superior mesenteric vein; SMA, superior mesenteric artery.
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