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SEER Inquiry System - Report
Produced: 04/12/2026 11:32 AM
Question 20130066
Inquiry Details
References:
Heme & Lymph Manual & DB
Question:
Multiple primaries--Heme & Lymphoid Neoplasms (Lymphoma): How many primaries are accessioned when a patient is diagnosed in 2003 with diffuse large B-cell lymphoma on an inguinal lymph node biopsy followed by a 2012 diagnosis of diffuse large B-cell lymphoma on a cervical lymph node biopsy? See Discussion.
Discussion:
The only documentation in the record is that there is a history of DLBCL.
Answer:
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Accession a single primary, diffuse large B-cell lymphoma [9680/3] diagnosed in 2003 per Rule M2. Abstract a single primary when there is a single histology. Per Rule M2, Note 2, a recurrence of the same histology is always a single primary (timing is not relevant).
SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.
