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Report Produced: 02/25/2026 11:05 AM

Report Question ID Question Discussion Answer Year
20130220 Reportability--Thyroid: Is a hyalinizing trabecular neoplasm of the thyroid reportable? See Discussion. The pathology comment states: Hyalinizing trabecular neoplasm is considered by some to represent a variant of papillary thyroid carcinoma because of the similar nuclear cytology, immunoprofile and RET-oncogene rearrangements.

Hyalinizing trabecular neoplasm is not reportable.

Hyalinizing trabecular neoplasm, or hyalinizing trabecular tumor, is a synonym for hyalinizing trabecular adenoma [8336/0] in the ICD-O-3. The 2004 WHO classification states that "fine needle aspiration biopsy is often interpreted as papillary carcinoma because of the nuclear features in the tumor."

2013
20130112 Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a diagnosis of post-transplant lymphoproliferative disorder (PTLD) diagnosed on an inguinal lymph node biopsy with CT scan evidence of lymphadenopathy in the chest, abdomen and pelvis if the bone marrow is also involved?

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

Code the primary site to multiple lymph node regions, NOS [C778] per Rule PH21 when multiple lymph node regions, as defined by the ICD-O-3, are involved and it is not possible to identify the lymph node region where the lymphoma originated

In the Abstractor Notes section in the Heme DB for PTLD it states PTLD commonly involves lymph nodes, GI tract, lungs and the liver. This patient has extensive lymph node involvement. Rule PH26 states to code the primary site to the bone marrow when ONLY the bone marrow is involved; however, that does not apply in this case.

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.

2013
20130069 Reportability--Heme & Lymphoid Neoplasms: Is chronic myeloproliferative neoplasm reportable? See Discussion. The Heme DB indicates myeloproliferative neoplasm is reportable, but does not indicate whether chronic myeloproliferative neoplasm is. Does the word "chronic" make this non-reportable?

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.

2013
20130176

Reportability--Ovary: Is an adult granulosa cell tumor of the right adnexa reportable if the left adnexa, diaphragm and paratubal tissue are reported to be consistent with metastasis? See discussion.

Per the pathology report: Right adnexa: adult granulosa cell tumor. Left adnexa: Foci of metastatic granulosa cell tumor in paratubal tissue. Diaphragm smears: consistent with metastatic granulosa cell tumor. Comment: The morphology and immunoprofile of the cellular aggregates in the paratubal soft tissue are consistent with metastatic granulosa cell tumor.

Based on the information provided, this case of adult granulosa cell tumor is malignant and reportable. According to our expert pathologist consultant, "though granulosa cell tumor NOS/ adult NOS is 8620/1, the presence of peritoneal implants or metastases, and/or lymph node metastases indicates the tumor is malignant, and it should be coded /3."

Note that the presence of implants or metastases does not indicate malignancy in the case of low malignant potential ovarian epithelial tumors. Our path expert explains "in contrast, by convention the behavior of borderline/LMP ovarian epithelial tumors is determined by the ovarian primary, and is /1, even though there may be peritoneal implants/metastases, or metastatic disease in lymph nodes. The treatment may vary in these circumstances, but to my knowledge the decision as to the tumor designation remains based on the primary tumor."

2013
20130177 MP/H Rules/Histology--Bladder: What rule and histology code apply when a TURB final diagnosis is small cell neuroendocrine carcinoma and high grade urothelial carcinoma? See Discussion.

The patient has a 6 cm tumor arising in posterior-lateral bladder extending to prostate, obliterates seminal vesicle, and invades pelvic wall.

TURB final diagnosis: Small cell neuroendocrine carcinoma. High grade urothelial carcinoma involves 10% of tumor.

Following the current MP/H single tumor rules, it appears Rule H8 applies. Per Rule H8, code the numerically higher code of 8120. By following this rule, it does not seem the histology code fairly represents this tumor.

There is currently no rule in the urinary site MP/H Rules for this combination of histologies. The best option is to code the histology to 8045/3 [mixed small cell carcinoma], a combination of small cell with other types of carcinoma. The presence of small cell carcinoma drives the treatment decisions for this case.

This issue will be addressed in the next revision of the MP/H Rules.

2013
20130055 Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a lymphoma with multifocal bone and epidural involvement but no lymph node involvement if the physician does not clearly state the primary site? See Discussion.

MRI Lumbar spine: Bony metastatic disease most evident at L5, L3 and T10. There is marrow tumor in the posterior elements of T12 and T10. The 14 mm epidural mass represents epidural tumor, likely metastatic, extending into the left intervertebral foramen at T12-L1.

PET scan: Hypermetabolic activity corresponding to epidural mass at the level of T12 and L1 concerning for malignancy. Other small areas of hypermetabolic activity in the left mandible and both femoral necks. There is no hypermetabolic activity corresponding to the areas of abnormal marrow edema in the vertebral bodies which enhanced on MRI scan in the lumbar and lower thoracic spine. No lymph nodes mentioned.

Biopsy epidural mass: Diffuse large B-cell lymphoma with a background of follicular lymphoma, consistent with a large cell transformation. Flow cytometry confirms a mixed large and small cell population of lymphoma (55% large cells).

T12/L1 Bone Biopsy: Bone and marrow with atypical paratrabecular lymphoid infiltrates, suspicious for involvement by follicular lymphoma. Negative for large cell lymphoma.

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

Code the primary site of the diffuse large B-cell lymphoma [9680/3] to C809 [unknown primary site] per Rule PH27. The patient has involvement of multiple bones and an epidural mass with no evidence of nodal involvement. Code the primary site to unknown [C809] when multiple organs are involved without any lymph node involvement, even when there is no statement from the physician regarding primary site.

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.

 2013
20130041 Reportability--Heme & Lymphoid Neoplasms: Is a flow cytometry immunophenotyping of peripheral blood that demonstrates a chronic lymphocytic leukemia (CLL) phenotype reportable as CLL? See Discussion. Final Diagnosis: "Peripheral blood, flow cytometry immunophenotyping: Monoclonal B-cell lymphocytosis with Chronic Lymphocytic Leukemia (CLL) phenotype; Negative for Zap 70; No abnormal T-cell population identified; CD34-positive blasts are not increased.

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

This is reportable. Code the histology to 9823/3 [chronic lymphocytic leukemia (CLL)]. Per Rule PH5, Note 1, CLL will always have peripheral blood involvement. Based on the provided information, this patient's peripheral blood is positive for CLL.

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.

2013
20130016 Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a patient is diagnosed with small lymphocytic lymphoma in 1996, received chemotherapy on and off for 15 years due to relapses, and was subsequently diagnosed with diffuse large B-cell lymphoma in 2012?

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

Per Rule M10, this case should be accessioned as two primaries. According to Rule M10, one is to abstract as multiple primaries when a neoplasm is originally diagnosed as a chronic neoplasm AND there is a second diagnosis of an acute neoplasm more than 21 days after the chronic diagnosis.

The histology for the 1996 chronic neoplasm is coded to 9670/3 [small lymphocytic lymphoma]. The histology for the 2012 acute neoplasm is 9680/3 [diffuse large B-cell lymphoma].

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.

2013
20130122 Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when an excisional biopsy of a chest wall nodule shows diffuse large B-cell lymphoma (40%) and follicular lymphoma, grade 3A (60%)? See Discussion.

The patient presented with a right chest wall nodule. The PET scan showed widespread disease: subcutaneous nodule/mass in the left scalp and right chest wall; large right paraspinal mass; soft tissue density likely a second early paraspinal mass at the right costovertebral junction; right paravertebral mass; and abnormal bony foci in the right humeral head, right iliac crest, right acetabulum and right femur. The physical exam showed 2 cm left supraclavicular lymphadenopathy and a firm 3 cm mass in the right chest wall. Lungs were clear. Abdomen showed no masses or ascites, and no palpable hepatosplenomegaly.

Chest wall nodule excisional biopsy pathology: Lymph node and adjacent soft tissue: Malignant lymphoma with components: 1. Diffuse large B-cell lymphoma (40%). 2. Follicular lymphoma, grade 3A (60%). Pathology report note states the diffuse large cell lymphoma is probably arising from the follicular center cell lymphoma.

Should this be a single primary? There is no mention of cutaneous lymphoma.

Accession a single primary per Rule M4. Code histology to 9680/3 [diffuse large B-cell lymphoma] per Rule PH11.

Per Rule M4, accession a single primary when two or more non-Hodgkin lymphomas are present in the same lymph node or organ.

Per Rule PH11 code the 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.

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.

2013
20130162 Reportability--Heme & Lymphoid Neoplasms: Is erythrocytosis of an unknown cause a reportable disease?

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

No. Per Appendix F, erythrocytosis of an unknown cause is not reportable.

The diagnosis must state "erythrocytosis megalosplenic" to be reportable (9950/3).

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.

2013