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

This is not reportable. In effect, the original diagnosis was a rule/out MDS diagnosis. The bone marrow biopsy performed as part of the initial workup, proved that rule/out diagnosis was not valid. The subsequent statement confirms the diagnosis is not clear.

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.

Code the primary site to spleen.

Code CS extension as 22 [involvement of spleen plus lymph nodes below the diaphragm]. This gives it a stage IIS.

Spleen is an extranodal (not extralymphatic) site.

The retroperitoneal lymph nodes are located below the diaphragm.

For tumors diagnosed prior to 2007:

According to our pathologist consultant:

Invasive small cell carcinoma of lobular histogenesis appears to be an unusual histology for a breast primary. Code it as such 8041 [Small cell carcinoma, NOS].

The 2002 lesion is most likely a new primary since the previous lesion was 18 years ago, in a different quadrant, and invasive. A comedo DCIS would probably not be asymtomatic for 18 years; an unlikely "recurrence" of an earlier ducal carcinoma.

Code "invasive small cell carcinoma of lobular histogenesis, high grade ductal carcinoma in situ, comedo type" as two primaries. Code the small cell as a separate primary (8041/3), and the DCIS separately (8501/2).

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

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

Per Rule PH30, use the Heme DB to determine the primary site and histology when PH1-PH29 do not apply. Per the Abstractor Notes section in the Heme DB, PTLD commonly involves lymph nodes, GI tract, lungs, and liver. Although CNS involvement is rare, in solid organ recipients the CNS may be the only site of involvement or may be associated with multi-organ involvement. Code the primary site to C719 [brain, NOS] and the histology to 9971/3 [post-transplant lymphoproliferative disorder (PTLD)]

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.

Plasma cell neoplasm is not reportable.

We apologize for the confusion that this has caused. The term "plasma cell neoplasm" was not included in the 2010 Heme DB and Manual. It was added to the 2012 Heme DB and Manual after repeated questions were received regarding this diagnosis. After further investigation, this term is being removed from the Manual and DB.

According to WHO, 'Plasma cell neoplasm' is an umbrella term that includes MGUS, plasma cell myeloma, solitary plasmacytoma of bone, immunoglobulin deposition diseases, extraosseous plasmacytoma, and osteosclerotic myeloma. Of these, only plasma cell myeloma, solitary plasmacytoma of bone, and extraosseous plasmacytoma are reportable. Physicians may use the term 'plasma cell neoplasm' when they are not sure what the specific disease is. Plasma cell neoplasm is not reportable; however, follow up on these types of patients is recommended because continued evaluation is likely to determine a more specific disease. A reportable neoplasm may be diagnosed at a later date.

Cases of plasma cell neoplasm diagnosed 2010 or later are not reportable. This change should not have taken place as a result of the update in the 2012 Manual. At this time SEER is not requiring registries to go back and review plasmacytoma or multiple myeloma cases that were collected based on this terminology.

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 C77.8 [multiple lymph node regions, NOS].

Per Rule PH6, code the primary site to the involved lymph node region(s) when there is no bone marrow involvement or when it is unknown whether the bone marrow is involved. To determine the more specific lymph node subsite to code, use Rule PH21. It indicates one is to code the primary site to C778 [multiple lymph node regions, NOS] when multiple lymph node regions, as defined by the ICD-O-3 (see Table C1: Lymph Node/Lymph Node Chain Reference Table in Appendix C), are involved and it is not possible to identify the lymph node region where the lymphoma originated.

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.