12C12291 | Bladder Flat Lesions

Case ID: 329

Publication date: 12 Feb, 2025

Consensus grade: Carcinoma in situ (CIS)

User	Diagnosis	Difficulty	Comment
Pathologist 1	Carcinoma in situ (CIS)	Borderline lower
Pathologist 2	Carcinoma in situ (CIS)	Typical
Pathologist 3	Carcinoma in situ (CIS)	Borderline lower
Pathologist 4	Atypia/dysplasia	Typical
Pathologist 5	Carcinoma in situ (CIS)	Typical
Pathologist 6	Reactive atypia	Typical
Pathologist 7	Carcinoma in situ (CIS)	Typical
Pathologist 8	Carcinoma in situ (CIS)	Typical
Pathologist 9	Carcinoma in situ (CIS)	Typical
Pathologist 10	Carcinoma in situ (CIS)	Typical
Pathologist 11	Carcinoma in situ (CIS)	Typical
Pathologist 12	Carcinoma in situ (CIS)	Typical
Pathologist 13	Reactive atypia	Typical	No specific comment.
Pathologist 14	Carcinoma in situ (CIS)	Typical
Pathologist 15	Carcinoma in situ (CIS)	Typical
Pathologist 16	Carcinoma in situ (CIS)	Borderline lower
Pathologist 17	Carcinoma in situ (CIS)	Typical	difficult to judge without IHCH and more sections of the lesion could also be reactive
Pathologist 18	Atypia/dysplasia	Typical	cell not large enough.
Pathologist 19	Carcinoma in situ (CIS)	Borderline lower
Pathologist 20	Carcinoma in situ (CIS)	Typical	clinging Cis

Case description (by case creator):

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