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Because the site is specifically stated to "skin" of nipple [C44.5], this case is not reportable.

If possible, you may wish to confirm the type of biopsy performed. If the biopsy was done by FNA or needle biopsy, the biopsy tissue should contain a full-thickness of skin and subcutaneous breast (nipple) tissue. If that is the case, this tumor would likely be a reportable squamous cell carcinoma of nipple [C50.0]. If, however, this was a punch biopsy it is more likely a non-reportable squamous cell carcinoma of the skin [C44.5].

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

Per Rule M14, accession this is a single primary. Per PH27, code the primary site to C809 [unknown} and per PH1, code the histology to 9680/3 [diffuse large B-cell lymphoma].

Per Rule M14, abstract as a single primary when post-transplant lymphoproliferative disorder is diagnosed simultaneously with any B-cell lymphoma, T-cell lymphoma, Hodgkin lymphoma or plasmacytoma/myeloma.

Per PH1, code the histology of the accompanying lymphoma or plasmacytoma/myeloma when the diagnoses of post-transplant lymphoproliferative disorder and any B-cell lymphoma, T-cell lymphoma, Hodgkin lymphoma, or plasmacytoma/myeloma occur simultaneously.

Per PH27, code the primary site to C809 [unknown primary site] because there is no lymph node involvement, but there is involvement of two extranodal sites.

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.

Secondary polycythemia vera is not reportable. See Appendix F.

Primary polycythemia vera is a condition in which there is an overproduction of blood cells due to a neoplastic process. Secondary polycythemia vera is an over production of red blood cells caused by a co-morbidity, in this case, volume depletion.

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 two primaries per Rule M11. Code the histology of one primary to 9680/3 [diffuse large B-cell lymphoma], the acute neoplasm. Code the histology for the second primary to 9823/3 [chronic lymphocytic leukemia/small lymphocytic lymphoma], the chronic neoplasm.

Per Rule M11, abstract as multiple primaries when both a chronic and acute neoplasm are diagnosed simultaneously or less than or equal to 21 days apart AND there is documentation of two pathology specimens, one confirming the chronic neoplasm (bone marrow biopsy) and one confirming the acute neoplasm (stomach biopsy).

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 2007 or later, code the histology as lobular carcinoma, in situ [8520/2].

The steps used to arrive at this decision are:

Open the Multiple Primary and Histology Coding Rules Manual. Choose one of the three formats (i.e., flowchart, matrix or text). Go to the Breast Histo rules because site specific rules exist for this primary.

Start at the SINGLE TUMOR: IN SITU CARCINOMA ONLY module, Rule H1. The rules are intended to be reviewed in consecutive order. Stop at the first rule that applies to the case you are processing. Code the histology to lobular carcinoma in situ [8520/2] because this is the only histologic type identified.

Pleomorphic lobular carcinoma is a variant of lobular carcinoma which does not have an ICD-O-3 code. It is still a lobular carcinoma. The identification of the variants of lobular carcinoma was a relatively recent discovery and the information was not available when the 2007 MP/H Rules were written. All of the lobular variants will be included in the next revision of the MP/H Rules.

Code the histology as adenocarcinoma, NOS [8140/3].

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

Open the Multiple Primary and Histology Coding Rules Manual. Choose one of the three formats (i.e., flowchart, matrix or text) and go to the Colon Histology rules to determine the histology code for this case. The Module you use depends on the behavior and number of tumors identified in the primary site.

Start at the MULTIPLE TUMORS ABSTRACTED AS A SINGLE PRIMARY Module Rule H15. The rules are intended to be reviewed in consecutive order from Rule H15 to Rule H24. Stop at the first rule that applies to the case you are processing. Code the histology when only one histologic type is identified. In this case, the only histology present was adenocarcinoma, NOS [8140/3].

Rules H17 through H21 do not apply in this case because there is no malignancy arising in any of the adenomas or polyps scattered throughout the colon.

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

Accession a single primary, the original ovarian serous carcinoma. The MP/H Rules do not apply to metastases.

Metastases: When cancer cells appear in other nodes or organs that are not the primary site they are metastatic cells. Discontinuous (separate from the primary tumor) masses or cells in regional lymph nodes, distant lymph nodes, or distant sites are always metastases. In this case, the sacral and pelvic masses are distant metastases. The pathologist does not have to compare cells to the original tumor slides; the discontinuous tumor mass/cells in any site other than the primary site are metastases.

Recurrence: For a disease to recur there are several criteria that must be met. First and most important, the patient must have had a disease-free interval (a tumor cannot recur if it has always been present). The other criteria are: the "new tumor" has to occur in the original primary site, it must be the same histology as the original tumor, AND must meet the timing requirements in the MPH rules for that organ/site.

This is a reportable case. Code the histology as malignant gastrinoma [8153/3].

Gastrinomas are usually malignant. This one is apparently present in a metastatic site (periportal lymph node) which confirms the malignancy.

This case is reportable. Code the primary site to C25.9 [pancreas, NOS] and the histology to 8240/3 [neuroendocrine tumor (NET), Grade 1].

Per the 2012 SEER Manual, code the site in which the primary tumor originated. This neoplasm arose in pancreatic tissue and will behave accordingly, even though this pancreatic tissue is not located in the usual place.

Pancreatic endocrine and neuroendocrine neoplasms are essentially the same thing. However, they are described in two different WHO classifications; the endocrine classification and the digestive system classification. The digestive system classification is more recent, and is preferred by our expert pathologist consultant. The term "neuroendocrine" is to be used now, rather than "endocrine." In the pancreas, "well differentiated endocrine tumor" is synonymous with "neuroendocrine tumor (NET) Grade 1" and is coded 8240/3.