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Table 5 Marinelli’s Criteria [10]

From: Review of radiological classifications of pancreatic cancer with peripancreatic vessel invasion: are new grading criteria required?

Grade (likelihood of vascular invasion)

Tumor contact with vessela

Length of tumor contact with vessel (mm)

Circumferential vein involvement (°)

Stenosis

1

Grade A–B

= 0 mm

= 0°

No stenosis

2

Grade C

< 5 mm

= 0°–90°

No stenosis

3

Grade C–D

> 5 mm

= 0°–90°

Flattened

4

Grade D

> 5 mm

>90° < 180° >180°

Occlusion thrombus

 

Grade E/F

-

 

-

  1. Grade 1, Definite absence of invasion; Grade 2, Probable absence of invasion; Grade 3, Probable presence of invasion; Grade 4, Definite presence of invasion
  2. aGrades A–F, according to Loyer’s Criteria [8]:
  3. Grade A: fat plane visible between tumour and vessels
  4. Grade B: normal pancreatic tissue between tumour and vessels
  5. Grade C: tumour adjacent to vessel with a convex contour towards vessels
  6. Grade D: tumour adjacent to vessel with a concave contour towards vessels
  7. Grade E: circumferential involvement of vessels
  8. Grade F: vascular occlusion
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Cancer Imaging

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