Case ID: 809

Publication date: 05 Oct, 2024

Consensus grade: Multilocular cystic renal neoplasm of low malignant potential

User Diagnosis Difficulty Comment
Pathologist 1 Multilocular cystic renal neoplasm of low malignant potential Not typical

Should have more pictures representative of the tumor

Pathologist 2 Other Not typical

Complex cyst with lining cells with clear cytoplasm. Could not convince myself of epithelium in septa. From photos, not convinced it is neoplastic.

Pathologist 3 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 4 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 5 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 6 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 7 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 8 Multilocular cystic renal neoplasm of low malignant potential Not typical

Septae are a bit thick

Pathologist 9 Other Not typical

atypical cyst
Insufficiently sampled. Could be MCRNLMP

Pathologist 10 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 11 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 12 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 13 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 14 Multilocular cystic renal neoplasm of low malignant potential Not typical

septa too thick,

Pathologist 15 Multilocular cystic renal neoplasm of low malignant potential Not typical

I am not entirely sure with such thick fibrotic septae. Also so called atypical cyst should be (AJSP 2016), according my opinion, taken into the consideration.

Pathologist 16 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 17 Other Typical
Pathologist 18 Other Typical

Benign renal cyst

Pathologist 19 Other Not typical

atypical cysts?

Pathologist 20 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 21 Multilocular cystic renal neoplasm of low malignant potential Typical


Case description (by case creator):