Report | Question ID | Question | Discussion | Answer | Year |
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20200048 | Solid Tumor Rules/Multiple Primaries--Lung: How many primaries are accessioned when a patient is diagnosed with right lower lobe invasive acinar adenocarcinoma (8551/3) in 2018 and treated with lobectomy, followed by a 2019 right middle lobe cancer (NOS, 8000/3) diagnosed as new stage 1 primary by cancer conference? See Discussion. |
Lung Rule M14 appears to be the first rule that applies to this case and instructs the user to abstract a single primary. However, we were hoping for confirmation that a cancer (NOS) or malignancy (NOS) would not be a distinctly different histology that may qualify for Lung Rule M8. Currently, these histologic terms are not included in the Table 3 options or mentioned in the preceding notes. |
Use M14 and code a single primary. Per our SME, carcinoma or cancer, NOS is not an acceptable diagnosis which is why 8000 and 8010 were not included in the tables or rules. We assume there was no tissue diagnosis for the 2019 diagnosis. We recommend searching for more information or better documentation on this case. |
2020 |
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20200016 | Reportability/Histology--Vulva: Is Extramammary Paget neoplasm (intraepithelial glandular neoplasm) reportable? See Discussion. |
Patient had a vulvar biopsy with final diagnosis of Extramammary Paget neoplasm (intraepithelial glandular neoplasm). No invasion identified. We are unable to contact the pathologist or physician for clarification. Although this terminology is not listed in the ICD-O-3, web search results refer to this as a possible synonym for Paget disease with associated VIN III, which is reportable. |
According to our subject matter expert, vulvar extramammary Paget neoplasm (intraepithelial glandular neoplasm) represents an in situ malignancy and should be reported. He states "The traditional terminology should be 'extramammary Paget disease' to describe an in situ adenocarcinoma arising from extramammary glands in vulvar mucosa. I am not so sure about "extramammary Paget NEOPLASM", which may include all three Pagetoid processes: the traditional Paget disease, the Pagetoid spreading of an anal adenocarcinoma and a Pagetoid spreading of an urothelial carcinoma from the urethra. Regardless, all these entities are considered at least in situ carcinomas." We recommend that you review clinical records and imaging for the clinical scenarios mentioned above. |
2020 |
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20200083 | Reportability/Histology--Kidney: Is hybrid oncocytic chromophobe tumor reportable for cases diagnosed 2021 and later? If so, how is the histology coded? See Discussion. |
The ICD-O-3.2 Coding Table includes hybrid oncocytic chromophobe tumor as a related term for histology code 8317 (Renal cell carcinoma, chromophobe type). However, this related term is not discussed in the implementation guidelines as being a new term/reportable tumor. The Solid Tumor Rules do not indicate a hybrid oncocytic chromophobe tumor is reportable; however, if a registrar only looked at the ICD-O-3.2 Coding Table, it may seem as though this histology should be collected. The term hybrid oncocytic chromophobe tumor was not included in the Solid Tumor Rules as a subtype/variant of RCC, or as an equivalent term for chromophobe RCC. There is a SINQ (20180047) that states not to report renal hybrid oncocytic tumor, despite the fact these tumors exhibit mixed features of both oncocytoma and chromophobe RCC. For cases diagnosed 2021 and later, should the clarification in the SINQ apply? Or should the ICD-O-3.2 Coding Table be used which indicates this is a reportable diagnosis? If the standard setters decided not to implement use of hybrid oncocytic chromophobe tumor for 2021, can clarification be added to the Solid Tumor Rules or Implementation Guidelines? This question was prompted from preparing SEER*Educate coding exercises. We will use the answer as a reference in the rationales. |
Hybrid oncocytic chromophobe tumor is listed in ICD-O-3.2 as 8317/3 which indicates it is reportable if diagnosed in 2021 or later. For cases diagnosed 1/1/2021 and later, use ICD-O-3.2 for reportability. See page 16 of the NAACCR 2021 Implementation Guidelines. Between publication of ICD-O-3.2 and updates made to solid tumor histology tables, additional terms were added based on review by the IARC ICD-O committee. These changes were not made available in time to correct the tables. All related terms or synonyms may not be included in the histology tables and ICD-O-3.2 should be used in tandem with the solid tumor rules. |
2020 |
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20200063 | Solid Tumor Rules (2021)/Laterality--Melanoma: Will the table called Site for Which Laterality Code Must Be Recorded be updated in the 2021 SEER Program Coding and Staging Manual as C444 is not included? The 2021 Cutaneous Melanoma Solid Tumor Rules say that C444 requires laterality; it says (new) beside it on the new Solid Tumor Rules for 2021. |
The laterality table in the 2021 SEER manual will not be updated. Please follow the 2021 Cutaneous Melanoma Solid Tumor Rules and assign a laterality for C444. |
2020 | |
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20200019 | Diagnostic confirmation--Heme and Lymphoid Neoplasms--Lymphoma: Is Diagnostic Confirmation "5" for Hematopoietic Neoplasms appropriate for this case? There appears to be no conclusive histologic diagnosis (Neoplasm, suggestive of lymphoma) and only the IHC/flow cytometry issued a conclusive diagnosis. See Discussion. |
10/4/2018 Frozen Section Diagnosis: Brain tissue with atypical cells and inflammatory cells, defer to permanents for further evaluation. Note: Tissue for flow cytometry is submitted. Final Diagnosis: Preliminary Diagnosis: Brain Tumor, Biopsy: Neoplasm, suggestive of lymphoma (see comment). Comment: The tumor exhibits nuclear atypia and increased mitosis. The tumor cells are immunologically positive for LCA and with very high ki67 labeling index. GFAP and synaptophysin are not expressed by tumor cells. The above suggests a lympho-proliferative process. This case is forwarded to the hematopathology service of this department for further evaluation. The final diagnosis report will be issued by the hematopathologist as an addendum. Supp Rpt Add Addendum Diagnosis: The brain biopsy showed brain tissue large lymphoid cell infiltrate. Additional immunohistochemical stains are performed. The large cells are positive for CD20, BCL2, BCL6 (subset), MUM1, and CD30, negative for CD3, CD5, and CD10. Staining for c-MYC is negative. Ki-67 positive large cells are approximately 18%. EBER is strongly positive by ISH. Diagnosis: Brain lesion, biopsy: EBV+ Diffuse Large B-cell Lymphoma. Addendum Comment: The concurrent flow cytometric study showed monoclonal lambda-positive B-cells without out CD5 and CD10 expression, consistent with B-cell lymphoma. |
Assign Diagnostic Confirmation as code 3, positive histology plus positive immunophenotyping. The biopsy diagnosis demonstrated EBV+ diffuse large B-cell lymphoma, with positive staining as indicated in the Hematopoietic and Lymphoid Neoplasm Database.The information received from the additional studies confirm the more specific diagnosis. |
2020 |
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20200036 | Reportability--Skin: Is malignant proliferative trichilemmal tumor (PTT) reportable, and if so, do we apply the matrix rule and code it to 8103/3? A literature search reveals these do exist, but are extremely rare. |
Malignant PTT (8103/3) of the skin is not reportable. A neoplasm originating in the skin with histology coded to 8103 is not reportable. See 1.b.i. on page 7 in the 2018 SEER manual for a complete list, https://seer.cancer.gov/manuals/2018/SPCSM_2018_maindoc.pdf |
2020 | |
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20200057 | Histology--Lung: Is there a better code for SMARCA4-deficient malignant neoplasms than 8000/3 that could be used especially given its aggressive nature? This term is not included in the Lung Solid Tumor Rules or ICD-O-3.1 and 3.2. See Discussion. |
Per Mayo consulting pathologist, the final diagnosis on this right lung biopsy is: SMARCA4-deficient malignant neoplasm (see Comment). Comment: Sections show a poorly-differentiated malignant neoplasm without any apparent glandular, squamous, or stromal differentiation. The tumor near totally replaces the underlying lung tissue without recognizable underlying alveolar parenchyma. Immunohistochemical stains performed at Mayo Clinic (Oscar keratin, INSM1, NUT, S100, desmin and BRG1 protein encoded by SMARCA4 gene) demonstrate that the malignant cells are positive for Oscar keratin (rare cells only), synaptophysin (weak/patchy) and p63 (focal) while negative for the remaining antibodies tested. Of note, SMARCA4 stain is negative in the tumor cells. Thus, this tumor can be categorized as a SMARCA4-deficient malignant neoplasm, which is known to be an aggressive malignancy, likely represent a SMARCA4-deficient thoracic sarcoma, a recently described entity. SMARCA4-deficient carcinomas in the lung have been reported to be mostly adenocarcinomas or squamous cell carcinomas, which would not fit for this case. Please refer to a paper published by our group (Sauter JL et al. Mod Pathol 2017;30:1422-32. |
Assign code 8020/3. SMARCA4-deficient malignant neoplasms are newly identified. WHO has not proposed an ICD-O code as of yet. Our pathology experts suggest coding to undifferentiated carcinoma until they are better classified. |
2020 |
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20200074 | Solid Tumor Rules (2018)/Histology--Head & Neck: What specific table(s) in the 2021 Head and Neck Solid Tumor Rules if any, apply to tumors of the lip? See Discussion. |
Lip has not been added to any of the site-specific histology tables, nor has any other instruction been provided for coding tumors in this site. Coding histology for lip primaries is difficult because registrars do not know where to look first. The Solid Tumor Rules indicate one should use the tables first, but then do not inform registrars what table to use for a lip primary (i.e., a specific table, any table, no table). This question was prompted from preparing SEER*Educate coding exercises. We will use the answer as a reference in the rationales. |
The tables are based on WHO H&N chapters which do not include lip. There are inherent issues in determining reportability for lip primaries based on site and histology. The decision was made prior to release of the 2018 rules to exclude a histology table for lip. We are consulting both our dermatology and H&N pathology experts to explore adding a lip site-specific table to the rules. |
2020 |
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20200076 | Reportability/Solid Tumor Rules (2018)--Kidney: Should clarification (Notes) be added to Table 1 of the 2018 Kidney Solid Tumor Rules regarding the use of clear cell papillary renal cell carcinoma (8323) and sarcomatoid renal cell carcinoma (8312) as these histologies conflict with the ICD-O-3.2? See Discussion. |
First, reportability of clear cell papillary renal cell carcinoma changed from 8323/3 to 8323/1. Although it does not appear the standard-setters implemented this change, note of the conflict between the ICD-O-3.2 and the Solid Tumor Rules (STR) is not included in the Implementation Guidelines or STR. The current Note for clear cell papillary renal cell carcinoma (8323) was left in Table 1, so this presumably is still reportable. It would be helpful if the conflict with ICD-O-3.2 was addressed, especially since the existing Note refers to changes made back in 2016 (not 2018 or 2021). Second, is the term sarcomatoid renal cell carcinoma still coded as a synonym for renal cell carcinoma (8312) because sarcomatoid is referring to a pattern of differentiation or 8318 (renal cell carcinoma, sarcomatoid)? The STR, Table 1, lists sarcomatoid renal cell carcinoma as 8312, but the ICD-O-3.2 lists this as 8318. The Note in Table 1 still indicates WHO/IARC and College of American Pathologists agree that sarcomatoid carcinoma is a pattern of differentiation, not a specific subtype, of renal cell carcinoma. This appears to conflict with WHO/IARC ICD-O-3.2 Coding Table as it provides a different, specific histology code for this malignancy. How can WHO/IARC classify this both a pattern of renal cell carcinoma and a separate, specific histology? This question was prompted from preparing SEER*Educate coding exercises. We will use the answer as a reference in the rationales. |
For cases diagnosed 2021 or later, use ICD-O-3.2 to determine reportability. Use the Solid Tumor Rules to determine the number of primaries to report and the histology to code for tumors that are reportable. Do not use the Solid Tumor Rules to determine reportability. ICD-O-3.2 was implemented by the North American standard setters as of 1/1/2021 and it is the basis for reportability for cases diagnosed as of 1/1/21. See 1.a on page 6 in the 2021 SEER manual, https://seer.cancer.gov/manuals/2021/SPCSM_2021_MainDoc.pdf WHO 4th edition Tumors of the Urinary System has proposed ICD-O code 8323/1 for clear cell papillary renal cell carcinoma. This has not been approved for implementation by the standard setters. Continue assigning 8323/3 for clear cell papillary renal cell carcinoma. Sarcomatoid RCC is listed as a synonym for RCC 8312/3. This is correct per WHO and our SME. Do NOT code sarcomatoid RCC to 8318/3. |
2020 |
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20200049 | Summary Stage 2018/EOD 2018--Lymphoma Orbital Adnexa: What is the correct Summary Stage 2018 (SS2018) for the site/histology Orbit, NOS (C696), 9699/3? In SEER*RSA, Extent of Disease (EOD) Primary Tumor references code 7 (Distant), whereas SS2018 assigns code 2 (Regional)? See Discussion. |
We received an edit error in SEER*DMS on the following site/histology (Orbit, NOS (C696)/9699/3) that involved an incorrect staging code being assigned to SS2018. The staging language is identical in AJCC, EOD and SS2018. SEER*RSA notes that SS2018 should be coded distant, but in the SS2018 manual, this language is noted Regional. Staging language is: Orbital adnexal lymphoma AND extraorbital lymphoma extending beyond the orbit to adjacent structures--Bone, Brain, Maxillofacial sinuses |
To clear this edit of the derived Summary Stage (based on EOD) and the manually assigned Summary Stage (based on Summary Stage 2018), assign the manually assigned Summary Stage to 7. For this particular case, EOD Primary Tumor 700 (which is correct based on the information received) derives Distant; however, for Summary Stage 2018, this description is under Code 2 for Regional by direct extension. This is an error. For 2022, Summary Stage for Lymphoma Ocular Adnexa description under Code 2 (Regional by direct extension) will be moved to Distant. No changes will be done to EOD. |
2020 |