Case ID: 1270

Publication date: 05 Feb, 2016

Consensus grade: GS 3+3=6 (ISUP 1)

User Diagnosis Difficulty Comment
Pathologist 1 GS 3+3=6 (ISUP 1) Borderline higher

mucinous fibroplasia

Pathologist 2 GS 3+3=6 (ISUP 1) Typical
Pathologist 3 GS 3+3=6 (ISUP 1) Typical
Pathologist 4 GS 3+3=6 (ISUP 1) Borderline higher

Collagenous micronodules creating glandular distortion.

Pathologist 5 GS 3+4=7 (ISUP 2) Typical

I think there is fusion in the upper left

Pathologist 6 GS 3+3=6 (ISUP 1) Typical
Pathologist 7 GS 3+3=6 (ISUP 1) Typical
Pathologist 8 GS 3+3=6 (ISUP 1) Typical
Pathologist 9 GS 3+3=6 (ISUP 1) Typical

Mucinous fibroplasia

Pathologist 10 GS 3+3=6 (ISUP 1) Typical
Pathologist 11 GS 3+4=7 (ISUP 2) Typical
Pathologist 12 GS 3+3=6 (ISUP 1) Typical
Pathologist 13 GS 3+3=6 (ISUP 1) Typical
Pathologist 14 GS 3+4=7 (ISUP 2) Typical

Collagenous micronodules usually create acinar distortion and fusion, warranting G4 rather than G3

Pathologist 15 GS 3+4=7 (ISUP 2) Typical
Pathologist 16 GS 3+3=6 (ISUP 1) Typical
Pathologist 17 GS 3+4=7 (ISUP 2) Borderline lower

The extracellular mucins - some would grade as 3+3

Pathologist 18 GS 3+3=6 (ISUP 1) Borderline higher
Pathologist 19 GS 3+4=7 (ISUP 2) Typical
Pathologist 20 GS 3+3=6 (ISUP 1) Typical

All glands are single, round, and separate.

Pathologist 21 GS 3+3=6 (ISUP 1) Borderline higher
Pathologist 22 GS 3+3=6 (ISUP 1) Typical
Pathologist 23 GS 3+3=6 (ISUP 1) Typical


Case description (by case creator):