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

Per PH Rule22, code the primary site to C779 [lymph nodes, NOS].

Rule PH22 is a default rule for lymphomas that is used when there is no other information regarding the primary site and the Heme DB does not indicate a primary site under its Primary Site(s) section. Rule PH27, code the primary site to unknown [C809], does not apply. Only use C809 [unknown] as the primary site when there is no evidence of lymphoma in lymph nodes AND the physician documents that the lymphoma originates in an organ(s).

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 is accessioned as a single primary. Code the histology to 9680/3 [diffuse large B-cell lymphoma] and diagnosis date to 2004. Per Rule M2, abstract as a single primary when there is a single histology.

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.

Mature teratomas in the ovary are benign [9080/0].

For testis, mature teratoma in an adult is malignant (9080/3); however, mature teratoma in a child is benign (9080/0).

With regard to the thyroid issue, from the information above, the medullary carcinoma in the patient's thyroid is clearly a separate event. According to our expert pathologist consultant, "thyroid tissue is one of the many tissue types that may be seen in teratomas. When the teratoma has exclusively or predominantly thyroid tissue the term struma ovarii is used Adenoma or carcinoma of the thyroid type may be seen in this thyroid tissue. If medullary carcinoma were present in the thyroid tissue in the ovary/teratoma, there would be mention of it in the path report."

The following answers depend on what this pathologist means by "ductal (tubular)." According to the WHO classification, tubular is not a duct subtype. Check with the pathologist if possible to determine if the intended meaning is "tubular carcinoma" or "duct carcinoma".

If the pathologist uses the expression "ductal (tubular)" as an equivalent of "tubular carcinoma": Accession two primaries, a tubular carcinoma [8211/3] and a ductal carcinoma in situ, solid type [8230/2].

For cases diagnosed 2007 and later, the steps used to arrive at this decision are:

Determine the provisional histologies of these tumors in order to apply the Multiple Primary rules. Open the Multiple Primary and Histology Coding Rules manual. For a breast primary, use the Breast Histology rules to determine the histology codes because there are site specific rules for breast primaries.

Determine the histology of in situ carcinoma, solid type ductal carcinoma in situ. Start at Rule H1. The rules are intended to be reviewed in consecutive order within the applicable Module. Code the more specific histologic term when the diagnosis is intraductal carcinoma and a type of intraductal carcinoma. Solid is a specific type of DCIS. The histology is 8230/2.

Determine the histology of the invasive carcinoma, tubular carcinoma. Start at Rule H10. Code the histology when only one histologic type is identified, Tubular carcinoma was the only type identified. The histology is 8211/3.

Go to the Breast MP rules found in the Multiple Primary and Histology Coding Rules Manual after determining the histology of each tumor. Start at the MULTIPLE TUMORS Module, Rule M4, because the patient has a single invasive tumor and separate foci of DCIS. These tumors have ICD-O-3 histology codes that are different at the third (xxx) number and are, therefore, multiple primaries.

If the pathologist uses the expression "ductal (tubular)" as an equivalent of "duct carcinoma": Accession a single primary, a duct carcinoma [8500/3].

For cases diagnosed 2007 and later, the steps used to arrive at this decision are:

Go to the Breast MP rules found in the Multiple Primary and Histology Coding Rules Manual. Start at the MULTIPLE TUMORS Module, Rule M4 because the patient has a single invasive duct carcinoma and separate foci of solid type ductal carcinoma in situ. Multiple intraductal and/or duct carcinomas are a single primary. Table 1 identifies solid type as a specific type of intraductal carcinoma.

Go to the Breast Histology rules found in the Multiple Primary and Histology Coding Rules Manual. Start at the MULTIPLE TUMORS ABSTRACTED AS A SINGLE PRIMARY Module, Rule H20. Code the invasive histology when both invasive and in situ tumors are present. Code the histology as 8500/3 [duct carcinoma].

Pancreatic (neuro)endocrine neoplasms (PanNETs) are reportable. The correct histology code is 8240/3. The grade is coded as 1 [well differentiated].

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.

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 lymphoma of bilateral orbits per Rule M2. Abstract a single primary when there is a single histology. Both orbits showed the same histology. Note 1 for Rule M2 states bilateral involvement of lymph nodes and/or organs is a single primary.

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 histology to 9823/3 [chronic lymphocytic leukemia/small lymphocytic lymphoma]. This primary was accessioned based on reportable ambiguous terminology. The surgical pathology report was compatible with B-cell small lymphocytic lymphoma/chronic lymphocytic leukemia, "compatible with" is a reportable ambiguous term. A neoplastic lymphoid infiltrate is not a reportable diagnosis. Therefore, a diagnosis compatible with CLL/SLL is coded as histology code 9823/3.

The statement that you do not use ambiguous terms to code histology is intended for those NOS histologies with an ambiguous term being used to describe the subtype.

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 histology to ductal carcinoma, NOS [8500/3] for a pathology report with a final diagnosis of "invasive carcinoma, no special type." Do not code the histology to carcinoma, NOS [8010/3].

The 4th Edition of the WHO Classification of Tumors of the Breast refers to invasive ductal carcinoma as invasive carcinoma, no special type. The ICD-O-3 code remains the same as invasive duct carcinoma [8500/3]. The next revision to the MP/H Solid Tumor Rules will clarify this issue.

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

Plasma cell dyscrasia and multiple myeloma are not synonymous terms. Plasma cell dyscrasia is not listed in the Alternate Names section of the Heme DB for plasma cell myeloma (multiple myeloma). Plasma cell dyscrasia is listed in the Alternate Names section of the Heme DB for MGUS [9765/1], which is not a reportable disease.

Plasma cell dyscrasia (PCD) is not reportable. PCD is a diverse group of neoplastic diseases that produces a serum M component (monoclonal immunoglobulin).

Usually these patients have a plasma cell morphology such as multiple myeloma or heavy chain disease. However, the registrar cannot diagnose multiple myeloma or heavy chain disease (or any other plasma cell neoplasm). There must be a physician statement and/or a positive biopsy to confirm a reportable diagnosis.

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.