Case ID: 653

Publication date: 18 Jan, 2016

Consensus grade: Multilocular cystic renal neoplasm of low malignant potential

User Diagnosis Difficulty Comment
Pathologist 1 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 2 Clear cell RCC Typical

with cystic change

Pathologist 3 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 4 Clear cell RCC Not typical
Pathologist 5 Renal cell carcinoma, unclassified Not typical

Clear cell renal cell carcinoma with many cysts vs clear cell papillary renal cell carcinoma vs clear cell renal cell carcinoma with leiomyomatous stroma.

The photos are poor.

Pathologist 6 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 7 Multilocular cystic renal neoplasm of low malignant potential Not typical

thick septae - borderline quality

Pathologist 8 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 9 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 10 Multilocular cystic renal neoplasm of low malignant potential Not typical
Pathologist 11 Clear cell RCC Typical

Nucleolar grade 1

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 Typical
Pathologist 15 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 16 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 17 Clear cell RCC Typical
Pathologist 18 Renal cell carcinoma with leiomyomatous stroma Not typical
Pathologist 19 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 20 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 21 Multilocular cystic renal neoplasm of low malignant potential Typical
Pathologist 22 Clear cell RCC Typical

I guess many people will vote for the multilocular CC, but I am really very strict in these tumors, and there are clearly on the second picture reasons against the multilocalr from my point of view

Pathologist 23 Clear cell RCC Not typical
Pathologist 24 Multilocular cystic renal neoplasm of low malignant potential Typical


Case description (by case creator):