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For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Chronic myeloproliferative neoplasm is reportable. The preferred term is myelodysplastic/myeloproliferative neoplasm, unclassifiable (MPN). Chronic myeloproliferative neoplasm is listed in the Heme DB under the Alternate Names section for this neoplasm.

The term chronic does not affect the reportability of this neoplasm. The newer terms are myeloproliferative neoplasm or myeloproliferative disorder and chronic is not used in most diagnoses.

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the grade to 6 [B-cell] for all cases of 9811/3 [B lymphoblastic leukemia/lymphoma] per Rule G3 in the Heme Manual.

Acute lymphoblastic leukemia, NOS [9835/3] is an obsolete code and cannot be used for cases diagnosed 2010 and later. The Heme DB indicates the correct histology code is 9811/3 and grade 6 [B-cell] for cases diagnosed 2010 and later.

For cases of acute lymphoblastic lymphoma, NOS [9835/3] diagnosed prior to 2010, use the pathology report information to code the grade. Code the grade as 9 [unknown] if the pathology report does not specify the grade.

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

This case should be accessioned as a single primary, diffuse large B-cell lymphoma diagnosed in 2011 per Rule M7. Note 4 for Rule M7 states to change the histology code on the original abstract to the more specific histology, diffuse large B-cell lymphoma in this case. There is no time restriction for rule M7. Apply rule PH11 and code the histology as 9680/3 [DLBCL] when both DLBCL and follicular lymphoma are present in the same lymph node(s).

Ambiguous terminology is not used to code a more specific histologic type per the Heme Manual. The information submitted states only that this low grade B-cell lymphoma was "most consistent with follicular lymphoma." The term "consistent with" is an ambiguous term per SEER and cannot be used to code the histology of the 2011 neoplasm as follicular lymphoma. There was no subsequent clinical statement that this patient was diagnosed with follicular lymphoma in 2011.

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.

Although the ambiguous terminology on the pathology report is not used to code the histology to follicular lymphoma, had there been a subsequent clinical statement that this patient had follicular lymphoma, the histology would be coded to follicular lymphoma [9690/3]. A diagnosis of follicular lymphoma followed by a diagnosis of DLBCL more than 21 days later is a new primary per rule M12.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the primary site to C421 [bone marrow] and the histology to 9680/3 [diffuse large B-cell lymphoma] per Rule PH26. B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma is listed under Alternative Names section of the Heme BD for DLBCL [9680/3]. This patient has bone marrow involvement only. The Note for Rule PH26 instructs one to code the primary site to the bone marrow when all physical exams or work-up were negative for lymph node, tissue, or organ involvement OR no other work-up was done.

The histology is not coded 9684/3 [malignant lymphoma, large B-cell, diffuse, immunoblastic, NOS]. This histology code became obsolete in 1/1/2010. Diffuse large B-cell lymphoma, immunoblastic variant is also listed under Alternative Names section of the Heme BD for DLBCL.

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the primary site to C421 [bone marrow] per Rule PH5. Note 1 for Rule PH5 states CLL always has peripheral blood involvement. If the peripheral blood is positive for CLL/SLL and no bone marrow biopsy is done, code the primary site to C421 [bone marrow].

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Per the Heme DB, the histology B-cell acute lymphoblastic leukemia is synonymous with B lymphoblastic leukemia/lymphoma, NOS. Per Rule PH8, for a neoplasm that can manifest as either leukemia lymphoma or leukemia lymphoma, one is to code the primary site to the site of origin when lymph node(s) or lymph node region(s), tissue(s) or organs are involved. The Note 4 instruction states it is necessary to go to Module 7 (Rules PH18-PH27) to code the more specific primary site. In this case, use Rule PH22 to code primary site to C779 [lymph nodes, NOS] for the case you describe.

In this case, there is involvement of abdominal lymph nodes, spleen, bone marrow and bone. There is no indication of the primary site. Per the Heme DB, the most frequent sites of involvement for the lymphoma are bone and lymph nodes. This is a Stage IV lymphoma.

The now inactivated SINQ 20120047, stated that based on the sites of involvement, this histology could be coded as either leukemia or lymphoma. If the only involvement is the bone marrow, the site is coded to C421 [bone marrow]. The involvement of peripheral blood does not change the primary site because such involvement is part of the leukemic process.

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Transformations do not always indicate a multiple primary is to be reported. Always apply the M Rules to determine the number of primaries. Refer to Rules M8-M13 in the Heme Manual address to determine the number of reportable primaries when chronic and acute neoplasms (transformations) are indicated on a case. Do not use the MP Calculator to determine the number of primaries unless the M Rules direct you to use it.

This case should be accessioned as two primaries, chronic lymphocytic leukemia [9823/3] diagnosed in 2000, and diffuse large B-cell lymphoma [9680/3] diagnosed on 04/26/2012 per Rule M10. Abstract a new primary when a neoplasm is originally diagnosed as a chronic (less aggressive) neoplasm (CLL) and there is a second diagnosis of an acute neoplasm (DLBCL) more than 21 days later.

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.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the primary site to C774 [inguinal lymph nodes] per Rule PH18. Code the primary site to inguinal lymph nodes [C774] when the site of lymphoma is described only as an inguinal mass. Groin lymph nodes are inguinal lymph nodes.

The diffuse large B-cell lymphoma diagnosed by right tibia biopsy is not a new primary per rule M7 because the histology of the history only case would be coded as 9590/3 [lymphoma, NOS]. No more specific histology is known for the initial diagnosis. Accession a single primary when a more specific histology [DLBCL] is diagnosed after the NOS ONLY histology when the Heme DB Multiple Primaries Calculator confirms the NOS and the more specific histology are the same primary. The right tibial involvement is not used to code the primary site because the patient had chemotherapy for this groin lymphoma prior to diagnosis of DLBCL.

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..

Per Rule M4, this is a single primary. According to Rule M4, one is to abstract a single primary when two or more types of non-Hodgkin lymphoma are simultaneously present in the same anatomic location(s), such as the same lymph node or lymph node region(s), the same organ(s), and/or the same tissue(s).

Per Rule PH11, code the histology to 9680/3 [diffuse large B-cell lymphoma] and the primary site to C422 [spleen]. According to PH11, one is to code the primary site to the site of origin, lymph node(s), lymph node region(s), tissue(s) or organ(s) and histology to diffuse large B-cell lymphoma (DLBCL) (9680/3) when DLBCL and any other non-Hodgkin lymphoma are present in the same lymph node(s), lymph node region(s), organ(s), tissue(s) or bone marrow.