SEER Inquiry System - Question 20000244 Details

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Produced: 02/18/2026 6:25 AM

Question 20000244

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Inquiry Details

References:

ICD-O-3, 26

Question:

Behavior Code--Bladder/Lymphoma: Should the "in situ" designation on a bladder primary's pathology report be ignored that states a diagnosis of "in situ lymphoma"?

Discussion:

Answer:

Ignore the in situ designation. You cannot assign an in situ behavior code to a lymphoma primary. The term or designation of "in situ" is limited to solid tumors; carcinoma and/or cancer.

Cancer Site Category:

Bladder, Lymphoma

Data Item Category:

Behavior

Other Category:

N/A

Year:

2000