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Report Produced: 04/29/2025 22:57 PM

Report Question ID Question Discussion Answer Year
20100075 Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are to be accessioned when a 1/27/10 bone marrow biopsy, FISH and cytogenetics reveals chronic myelogenous leukemia (CML), BCR/ABL positive, t(9;22)(q34;q11) and a 4/15/10 bone marrow biopsy reveals B-acute lymphoblastic leukemia (Blast phase of CML)?

1/27/10 BM biopsy: CML BCR/ABL+ FISH positive for BCR/ABL and cytogenetics showing the t(9;22)q34q11.2 translocation. Treated with Imatinib. 4/15/10 BM biopsy: B-acute lymphoblastic leukemia (Blast phase of CML). Would the term "blast phase of CML" indicate the 4/15/10 bone marrow biopsy showed CML or would a new primary be abstracted with histology coded 9811/3 [B lymphoblastic leukemia/lymphoma, NOS]?

Applying rule M10, this is a new primary, but note 2 states transformations are defined in the Heme DB. The Abstractor Notes section indicates CML has three phases: chronic, accelerated, and the blastic phase or blast crisis. The accelerated phase can last weeks to months. In the chronic phase the involvement is usually limited to blood, bone marrow and spleen although the liver may be infiltrated. During the blastic phase, lymph nodes and tissue may be involved. The blastic phase is a disease progression from the chronic phase. The disease, however, remains the same histology, chronic myelogenous leukemia.

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

This case represents a multiple primary per Rule M15 which states you are to use the Heme DB Multiple Primaries Calculator to determine the number of primaries for all cases that do not meet the criteria of M1-M14.

The histology for the first primary is coded to 9875/3 [chronic myelogenous leukemia, BCR-ABL1 positive].

The histology for the second primary is 9811/3 [B lymphoblastic leukemia/lymphoma, NOS] in the absence of further documentation that the B-ALL was also positive for the t(9;22) translocation.

The histology code 9806/3 [Mixed phenotype acute leukemia with t(9;22)(q34;q11.2); BCR-ABL1] cannot be used for the second primary because there is no documentation that the B-ALL diagnosed on 04/15/2010 also had the t(9;22) translocation and this histology cannot be used in patients ." Per the Definition section in the Heme DB, in order to use histology code 9806/3 "This leukemia meets the criteria for mixed phenotype acute leukemia (MPAL) in which the blasts also have t(9;22) translocation of BCR-ABL1 rearrangement. Some patients with chronic myeloid leukemia may develop or even present with a mixed blast phase that would meet criteria for MPAL; however, this diagnosis should not be made in patients known to have had CML."

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.

2010
20100074 Laterality--Melanoma: For a melanoma case, does the term "mid" imply that the tumor is in the midline when the site is the skin of back (trunk)? Yes. When the location is described as mid-back or mid-chest with no indication of left or right, assign laterality code 5 [midline]. 2010
20100073 Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a patient is diagnosed on 4/7/10 by a bone marrow biopsy with myelodysplastic syndrome, refractory anemia (RAEB2) and on a 7/27/10 bone marrow biopsy with progression to acute myelogenous leukemia with 40% blasts (AML)?

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

Accession two primaries per Rule M10, the first is a chronic neoplasm RAEB2 [9983/3] and the second is an acute neoplasm AML, NOS [9861/3]. Rule M10 states abstract as multiple primaries when a neoplasm is originally diagnosed in a chronic phase (MDS RAEB2) and an acute disease (AML) is diagnosed more than 21 days later. This is the rule that fits your case.

There are several important pieces of information. There were two bone marrows biopsies; one confirmed the chronic disease and a second confirmed the acute disease. The dates of the bone marrows are more than 3 months apart. Because you have a chronic and an acute disease, Rules M8-M13 in the coding manual apply.

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.

2010
20100072 Histology/Reportability--Heme & Lymphoid Neoplasms: Is a diagnosis of follicular lymphoma in situ of the gallbladder reportable for 2010? See Discussion. Coding the histology to 9690 [Follicular lymphoma] with a behavior of 2 [in situ] causes many edits including SEER and CS edits to fail. According to the chief of pathology, this is a recently identified pathologic entity.

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

Currently, lymphoma in situ is not reportable. It is true that this is a recently identified pathologic entity. Our experts say that there is still some controversy to be ironed out regarding the criteria for identifying an in situ lymphoma. Their recommendation was to wait until clear guidelines had been established for the pathologists before we start collection of in situ lymphomas. We anticipate collecting these entities in the future.

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.

2010
20100071 Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned for a patient diagnosed in February 2010 with a plasmacytoma of the frontal skull followed by a diagnosis of smoldering myeloma by bone marrow biopsy? See Discussion.

The patient had a diagnosis of solitary plasmacytoma of the right frontal skull in 2/2010 that was totally resected (the cranial specimen final diagnosis was plasmacytoma). The patient received radiation. While undergoing radiation, the patient was seen by a medical oncologist who did a bone marrow biopsy that revealed 10-15% plasma cells, and was called smoldering myeloma. Watchful waiting was recommended. In 8/2010, the patient had multiple lytic lesions and began systemic treatment.

Per rule M15 and the Multiple primary calculator, 9731/3 [plasmacytoma] and 9732/3 [smoldering myeloma] is accessioned as two primaries. When the manual states, "Use the Hematopoietic Database to determine the primary site and histology when PH1-PH29 do not apply," does this mean to use the calculator not the database itself? By the old rules this was one primary. Did this change for cases diagnosed 1/1/10 and later? Which M rule is the correct rule to apply?

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

The smoldering myeloma is a second primary per Rule M10. Accession as multiple primaries because this case was originally diagnosed as a chronic neoplasm (plasmacytoma)phase and there was a second diagnosis of an acute neoplasm (multiple myeloma) more than 21 days after chronic diagnosis. See note 1 which indicates, "This is a change from previous rules." Note that the MP rules and the MP calculator in the Heme DB agree.

When the rules tell you to go to the DB to determine the histology and primary site, you use the DB information. (Don't forget to check the Abstractor Notes). The multiple primaries calculator is used to determine the number of primaries to abstract. Always use the M rules before using the MP calculator.

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.

2010
20100070 Histology--Heme & Lymphoid Neoplasms: How is this field coded for a follicular lymphoma, grade 2 of 3, predominantly nodular?

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

Code histology to 9691/3 [Follicular lymphoma, grade 2]. Nodular lymphoma is an obsolete term once used to describe follicular lymphoma. (See Appendix A, Table A3)

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.

2010
20100069 Primary site--Heme & Lymphoid Neoplasms: How is this field coded when a 5/26/10 colonoscopy reveals ulcers in the cecum, ascending, transverse, descending, and sigmoid colon and, the final diagnosis on the pathology report is post-transplant lymphoproliferative disorder [9971/3]?

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

Code the primary site to C189 [Colon, NOS] per Rule PH1.

Code the primary site to C189 [Colon, NOS] and not C188 [Colon, overlapping lesion] because there are multiple ulcers in different segments of the colon. The .8 code is used only for a single lesion that overlaps subsites.

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.

2010
20100068 Histology--Heme & Lymphoid Neoplasms: How is this field coded for a JAK-2 positive myeloproliferative disorder, NOS, that is never specified as acute or chronic but was treated with Hydrea? See Discussion. The hematology oncologist referred to the case as a JAK-2 positive myeloproliferative disorder. It is never called acute or chronic. JAK-2 test was positive for mutation, and the bone marrow report indicates, "Morphological features can be seen in myeloproliferative neoplasm." Flow cytometry report indicates, "The flow data demonstrate neutrophilia with left shift. Lymphocytes are composed of a mixed population of T and B-cells with some atypical B-cells." The patient is subsequently treated with Hydrea.

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

Code the histology to 9975/3 [myeloproliferative/myelodysplastic neoplasm, unclassifiable] which is a new code implemented in 2010. Myeloproliferative disorder NOS is equivalent to myeloproliferative disease which is listed as a synonym for code 9975/3.

When the disease is diagnosed very early, it may manifest symptoms of two or more specific myeloproliferative neoplasms. As the disease progresses, it will manifest the symptoms of one of the specific MPN subtypes. When a more specific diagnosis becomes available, change the histology code to the more specific MPN code as directed in the PH rules. That is the scenario you describe. JAK-2 is positive, but the physician does not designate PV or ET. Hydrea is treatment for both PV and ET. In the future, the specific type of MPN may be diagnosed. In the interim, code the only diagnosis you have, MPN, NOS.

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.

2010
20100067 MP/H Rules/Reportability--Ovary: Should an ovarian tumor with the histology of mixed epithelial borderline tumor with multiple foci of intraepithelial carcinoma be accessioned based on the presence of a foci of intraepithelial carcinoma? See Discussion.

The final diagnosis on the pathology report, "Omentum: mixed epithelial borderline tumor with multiple foci of intraepithelial carcinoma. Peritoneal fluid for cytology: neoplastic cells present; low grade serous neoplasm. Lymph nodes, right pelvic: one lymph node harboring implants of serous borderline tumor and endosalpingiosis within the subcapsular sinus. Bilateral fallopian tubes and ovaries: mixed epithelial borderline tumor with multiple foci of intraepithelial carcinoma involving ovarian surface and serosal surface of the tube. Detached fragment of borderline tumor within the tubal lumen. Uterus, cervix, and segment of colon: mixed epithelial borderline tumor with multiple foci of intraepithelial carcinoma involving parametrial and paracervical tissue, cul de sac, uterine and colonic serosa. Nine pericolonic lymph nodes negative for tumor. Stage III.

I&R # 45622 asked if a mucinous borderline tumor with intraepithelial carcinoma and focal microinvasion is reportable. The answer given on that site was that the case is not reportable. According to MPH, FORDS, and Collaborative Stage, intraepithelial carcinoma is in situ, behavior code 2, and is reportable. Has this changed?

This case is reportable because there is a diagnosis of carcinoma (intraepithelial carcinoma). 2010
20100066 MP/H Rules/Multiple Primaries--Breast: How many primaries should be accessioned if two tumors are present in the same breast, a 1.7 cm colloid carcinoma and a 1.5 cm colloid carcinoma with infiltrating ductal carcinoma? See Discussion.

If a patient has two masses in the same breast with different histology codes and different sizes, should this be accessioned as two primaries? Or should this be a single primary based on the largest tumor size or numerically higher histology code?

  1. Size 1.7 cm for the largest tumor size, but histology is colloid carcinoma. Histology code: 8480/3.

  • Size: 1.5 cm with colloid with infiltrating ductal carcinoma. Histology code 8523/3.

    		•

    For cases diagnosed 2007 or later, abstract this case as two primaries.

    Mucinous/colloid carcinoma of the breast is rare. The first tumor describes (1.7 cm) fits this criteria because the pathologist simply says mucinous carcinoma. The diagnostic criteria for mucinous carcinoma is that pools of extracellular mucin make up at least 1/3 of the volume throughout the tumor mass. If focal areas are not at least 33% mucinous, the designation is a mixed mucinous/ductal. That fits the second tumor (1.5 cm).

    For this case, you must get the histology codes for both tumors in order to use the Multiple Primary rules. Per H14 the first tumor is coded mucinous carcinoma [8480/3]. Per H17 the second tumor is coded duct carcinoma mixed with any other carcinoma [8523/3]. Now go to the MP rules. Per M12 abstract this case as multiple primaries because the ICD-O-3 histology codes are different at the second and third digit.

    		 2010