Case 1 | Bladder Papillary Lesions

Case ID: 592

Publication date: 03 Jan, 2025

Consensus grade: Low-grade papillary urothelial carcinoma (LG-PUC)

User	Diagnosis	Difficulty	Comment
Pathologist 1	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 2	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 3	Low-grade papillary urothelial carcinoma (LG-PUC)	Borderline lower
Pathologist 4	Low-grade papillary urothelial carcinoma (LG-PUC)	Borderline lower	partial squamous
Pathologist 5	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 6	Low-grade papillary urothelial carcinoma (LG-PUC)	Borderline lower	Most areas are tangential
Pathologist 7	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical	some squamous metaplasia, but remains LG
Pathologist 8	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 9	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 10	Low-grade papillary urothelial carcinoma (LG-PUC)	Borderline higher
Pathologist 11	Low-grade papillary urothelial carcinoma (LG-PUC)	Bordering on higher
Pathologist 12	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical	No specific comment.
Pathologist 13	High-grade papillary urothelial carcinoma (HG-PUC)	Bordering on lower
Pathologist 14	PUNLMP	Bordering on higher
Pathologist 15	Low-grade papillary urothelial carcinoma (LG-PUC)	Bordering on lower	Squamous metaplasia
Pathologist 16	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 17	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 18	High-grade papillary urothelial carcinoma (HG-PUC)	Bordering on lower
Pathologist 19	Low-grade papillary urothelial carcinoma (LG-PUC)	Bordering on lower
Pathologist 20	Low-grade papillary urothelial carcinoma (LG-PUC)	Typical
Pathologist 21	Low-grade papillary urothelial carcinoma (LG-PUC)	Bordering on higher
Pathologist 22	Low-grade papillary urothelial carcinoma (LG-PUC)	Bordering on higher
Pathologist 23	High-grade papillary urothelial carcinoma (HG-PUC)	Typical

Case description (by case creator):

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Consensus grade: Low-grade papillary urothelial carcinoma (LG-PUC)