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20120087 | MP/H Rules/Histology--Kidney: How is the histology coded and what rule(s) apply for "cyst associated renal cell carcinoma," "cystic renal cell carcinoma," and "cystic renal cell carcinoma, clear cell type"? See Discussion.
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Per SINQ 20031008, these histologies were all coded as 8316/3 [cyst associated renal cell carcinoma]. What are the correct codes for these histologies using the 2007 MP/H Rules?
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For cases diagnosed 2007 or later, the correct histology code for both cyst associated renal cell carcinoma and cystic renal cell carcinoma is 8316/3. The histology code for cystic renal cell carcinoma, clear cell type is 8255/3.
The steps used to arrive at these decisions are:
Step 1: Open the Multiple Primary and Histology Coding Rules Manual. Choose one of the three formats (i.e., flowchart, matrix or text). Go to the Kidney Histology rules because site specific rules have been developed for this primary.
Step 2: For the first histology, cyst associated renal cell carcinoma, start at the SINGLE TUMOR module, Rule H1. The rules are intended to be reviewed in consecutive order within a module. Stop at Rule H5. According to this rule you are to use Table 1 if you have a renal cell carcinoma and mention of a more specific renal cell type. To locate Table 1, go to Kidney under the Terms & Definitions section. Per Table 1, titled Renal Cell Carcinomas and Specific Renal Cell Types, "cyst associated" is a specific type of renal cell carcinoma. Code the histology to 8316/3 [cyst associated renal cell carcinoma].
Step 3: For the second histology, cystic renal cell carcinoma start at the SINGLE TUMOR module, Rule H1. The rules are intended to be reviewed in consecutive order within a module. Stop at Rule H5. As in the previous example you are to use Table 1 if you have a renal cell carcinoma and mention of a more specific renal cell type. Per Table 1 "cystic" is a specific type of renal cell carcinoma. Code the histology to 8316/3 [cystic renal cell carcinoma].
Step 4: For the third histology, cystic renal cell carcinoma, clear cell type, start at the SINGLE TUMOR module, Rule H1. The rules are intended to be reviewed in consecutive order within a module. Stop at Rule H6 which states you are to code histology to 8255 (adenocarcinoma with mixed subtypes) when there are two or more specific renal cell carcinoma types. To determine whether "clear cell" and "cystic" are types of renal cell carcinoma use Table 1 again. According to Table 1, both cystic and clear cell are specific types of renal cell carcinoma. Code the histology as 8255/3 [adenocarcinoma with mixed subtypes].
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2012 |
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20120073 | Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a 2011 diagnosis of systemic mastocytosis? See Discusson. | Patient presented with leukopenia, anemia and monoclonal gammopathy. A bone marrow biopsy in 2011 showed systemic mastocytosis [9741/3]. A subsequent shave biopsy of abdominal skin showed histologic features that were consistent with a diagnosis of mastocytosis. A later bone marrow biopsy was subsequently performed that showed progressive systemic mastocytosis. | 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 rules PH1-PH29 do not apply. The Heme DB indicates the primary site for systemic mastocytosis is always coded to C421 [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. |
2012 |
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20120062 | MP/H Rules/Multiple primaries--Breast: How many primaries are accessioned if a patient has a history of breast cancer in 2006 treated with bilateral mastectomies and in 2011 is found to have invasive carcinoma in "breast tissue, right lumpectomy"? See Discussion. |
Patient was originally diagnosed in June 2006, with right breast cancer and underwent lumpectomy and chemotherapy. This was followed by a bilateral mastectomy with reconstruction in January of 2007 that showed no residual tumor in the breast but 1 positive right axillary lymph node. The patient started Arimidex in May 2007 and had ongoing follow-up. In November 2011, the patient noted a "lump to her right upper reconstructed breast at approximately 2:00." Needle biopsy in December 2011 showed invasive carcinoma and the patient underwent a lumpectomy. The lumpectomy pathology report stated, "Breast tissue, right, lumpectomy: poorly differentiated infiltrating ductal cancer." There is no comparison of the current pathology to the previous pathology, as the previous lumpectomy/mastectomy was done at another facility. The patient is being treated at this facility with radiation as if this is a "recurrent/persistent right sided breast cancer." Should this case be classified as a new primary because the pathology report indicates the malignancy was in breast tissue? Or is this actually a chest wall recurrence given the fact that the patient was previously treated with bilateral mastectomies? Should this case be treated as indicated in SINQ 20110111? |
For cases diagnosed 2007 or later, accession two primaries, right breast cancer diagnosed in June 2006 and a subsequent right breast primary diagnosed in December 2011. 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 MP rules because site specific rules exist for this primary. Start at the MULTIPLE TUMORS module, rule M4. The rules are intended to be reviewed in consecutive order within a module. Accession two primaries, tumors diagnosed more than five (5) years apart are multiple primaries. If the pathology report stated the tumor originated in residual breast tissue, then this is a new tumor and, therefore, a new primary per rule M5. If the pathology report stated the tumor arose in the chest wall and/or there is no designation of residual breast tissue, then this is a regional metastasis and not a new primary. |
2012 |
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20120034 | Primary site--Brain and CNS: How is the primary site to be coded if a clinician used an MRI to diagnose a left cerebellar venous angioma? See Discussion. |
According to the WHO Classification of Brain/CNS Tumors, code 9122/0 (venous angioma) does not appear under tumors of the cerebellum (C716). |
Venous angiomas (9122/0) are not reportable wherever they arise. The primary site for venous angioma arising in the cerebellum is C490. The combination of 9122/0 and C490 is not reportable. Venous angioma is a venous abnormality, currently referred to as a developmental venous anomaly (DVA). |
2012 |
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20120066 | Histology/Primary site--Heme & Lymphoid Neoplasms: How are the histology and primary site coded if the patient has monomorphic B-cell post-transplant lymphoproliferative disorder with features of diffuse large B-cell lymphoma involving the intramuscular chest wall and right frontal lobe of the brain? See Discussion. | The patient is a 12 year old with a history of Fanconi anemia, status post stem cell transplant. In May, 2012 the patient was diagnosed with monomorphic B-cell PTLD with features of diffuse large B-cell lymphoma. | 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. |
2012 |
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20120057 | Reportability--Appendix: Is a low grade mucinous neoplasm of uncertain malignant potential with an in situ mucinous cystadenoma component reportable? See Discussion. | The patient was diagnosed with pseudomyxoma peritonei and the pathology report final diagnosis stated, "Low grade mucinous neoplasm, of uncertain malignant potential, involving a dilated appendix (5cm) with the following features: In situ mucinous cystadenoma component is identified, with low-grade cytology of neoplastic epithelium." Does the presence of an in situ component make this mucinous cystadenoma of the appendix reportable based on the ICD-O-3 matrix rule? | This diagnosis is not reportable. Cystadenoma is not reportable. The "in situ" description in this case does not make cystadenoma reportable.
According to our expert pathologist consultant, this is a "non-invasive, low grade, epithelial proliferation in an often cystic appendiceal tumor, 8480/1. If this has leaked or ruptured it can seed the peritoneal cavity causing pseudomyxoma peritonei." |
2012 |
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20120009 | Histology--Heme & Lymphoid Neoplasms: How is the histology coded when the pathology report states the morphologic features and immunophenotype of a low grade B-cell lymphoma are most compatible with lymphoplasmacytic lymphoma or marginal zone lymphoma? | For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Code the histology to 9591/3 [B-cell lymphoma, NOS] per Rule PH28 which states that one is to code the histology when the diagnosis is
There is only one non-specific histology code mentioned, low grade B-cell lymphoma. This term is synonymous with B-cell lymphoma, NOS.
Per the Multiple Primaries Calculator, when comparing the histology 9591/3 [B-cell lymphoma, NOS] and 9671/3 [lymphoplasmacytic lymphoma], it is the same primary. When comparing the histology 9591/3 [B-cell lymphoma, NOS] and 9699/3 [marginal zone lymphoma], it is the same 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. |
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20120064 | Reportability--Heme & Lymphoid Neoplasms: If hemophagocytic lymphohistiocytosis treated with several rounds of chemotherapy is reportable, what is the primary site? |
Patient was diagnosed with hemophagocytic lymphohistiocytosis on blood and bone marrow biopsy. This was also referred to in the chart as hemophagocytosis and hemophagocytic syndrome. Hemophagocytic syndrome is listed in the Heme DB as 9724/3. The patient had several rounds of fairly aggressive chemotherapy. Would the correct primary site for histology 9724/3 be C421 [bone marrow], or C779 [lymph nodes, NOS]? See SINQ 20100113. |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph. Hemophagocytic syndrome, also known as hemophagocytic lymphohistiocytosis (HLH), is not reportable. Per Appendix F, HLH is caused by an over stimulated immune system (infection, etc.). It is a clinical syndrome associated with a variety of underlying conditions. To be reportable, a child's diagnosis must state "fulminant hemophagocytic syndrome" to be reportable (9724/3). This is not the situation in this case. "Hemophagocytic lymphohistiocytosis" is also listed in Appendix F: Non-Reportable List for Hematopoietic Diseases. 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. |
2012 |
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20120091 | Reportability/Behavior--Kidney: Is epithelioid angiomyolipoma (AML) of the kidney a reportable malignancy? See Discussion. | The addendum final diagnosis on a pathology report for a kidney core needle biopsy included the results of additional stains performed on the tissue. It indicated the morphology was most consistent with epithelioid angiomyolipoma. Further comments in the body of the report indicate these tumors are now considered malignant neoplasms with the capacity to be locally aggressive and they can potentially metastasize. There is no mention of a metastasis in this particular case. | Epithelioid angiomyolipoma (AML) [8860/0] of the kidney is not reportable unless stated to be malignant.
If the pathologist confirms this is a malignancy, apply ICD-O-3 Rule F (Matrix principle) and assign the behavior code /3. If confirmation is received, accession the case using the morphology code 8860/3 [malignant angiomyolipoma]. |
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20120088 | MP/H Rules/Multiple primaries--Head & Neck: How many primaries are accessioned and what rule applies if a patient has an extensive tumor in the left ethmoid sinus and a separate tumor in the right maxillary sinus? See Discussion. |
MRI and CT Neck Impression: Extensive tumor mass which likely originated within the left ethmoid sinus and extends intracranially via the cribriform plate into the anterior cranial fossa. There is involvement of the left orbit and extension into the superior aspect of the left maxillary sinuses as well as the nose. Second enhancing lesion within the right maxillary sinus measures almost 2 cm. The second mass within the floor of the right maxillary sinus, with similar imaging characteristics, is consistent with malignant involvement. The patient has an extensive ethmoid sinus tumor, biopsy showed squamous cell carcinoma. The ethmoid sinus is not a paired organ. The patient also has a small maxillary tumor with no histologic confirmation, Hem/Oncology chart notes state the right maxillary sinus mass is carcinoma. The maxillary sinus is a paired organ. Per the AJCC Manual (AJCC Manual for Staging, 7th edition, page 70), both the ethmoid and maxillary sinuses are further identified by their laterality (left and right). Why aren't the ethmoid sinuses a paired organ for the MP/H Rules? What MP rule applies to this case? |
For cases diagnosed 2007 or later, accession a single primary. 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 Head and Neck MP rules after determining the histology of each tumor - (8070/3 [squamous cell carcinoma] and 8010/3 [carcinoma, NOS]) because site specific rules have been developed for this primary. Start at the MULTIPLE TUMORS module, Rule M3. The rules are intended to be reviewed in consecutive order within a module. Abstract a single when one tumor is carcinoma, NOS [8010] and another tumor is a specific carcinoma, squamous cell carcinoma [8070] because the ethmoid sinus (site of origin) is not a paired site per the MP/H rules. We will review the list of paired organs for the next edition of the MP/H Rules. |
2012 |
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