SEER Inquiry System - Question 20031162 Details

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Question 20031162

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Inquiry Details

References:

#1: ICD-O-3, 97

#2: WHO Class Hem & Lymph Tumors, 119-126. 2001

Question:

Multiple Primaries/Histology--Hematopoietic, NOS/Lymphoma: How many primaries are represented and what are the histologies for "B-cell lymphoma with immunophenotypic findings consistent with hairy cell leukemia" found on a bone marrow biopsy? See Description.

Discussion:

Pathologist completed AJCC lymphoma staging form indicating this case should be abstracted as a lymphoma.

Answer:

For cases diagnosed prior to 1/1/2010:Abstract as one primary, 9591/3 [B-cell lymphoma, NOS]. The bone marrow diagnosis indicates that the main/definite diagnosis is B-cell lymphoma, with a lesser indication of hairy cell leukemia. Both of these are mature B-cell neoplasms according to the WHO histological classification.

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

Cancer Site Category:

N/A

Data Item Category:

Histology

Other Category:

Multiple primaries

Year:

2003