Report | Question ID | Question | Discussion | Answer | Year |
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20180006 | MP/H Rules/Histology--Breast: Should encapsulated papillary carcinoma of the breast with a separate focus of ductal carcinoma in situ be coded as 8050/2 (papillary carcinoma) and staged as in situ? See Discussion. |
Pathology--Right breast, lumpectomy with needle localization: Encapsulated papillary carcinoma of the breast. A separate focus of ductal carcinoma in situ is present. Sentinel lymph node, right breast, biopsy: One lymph node, negative for malignancy. No metastatic carcinoma is seen on slides stained with immunostain for cytokeratin (AE1/AE3). Specimen laterality: Right. Tumor size: 1.2 cm. Histologic type: Encapsulated papillary carcinoma. Nuclear grade: Grade 1 (low). Mitotic rate: Score 1. Ductal carcinoma in situ (DCIS): DCIS is present. Estimated size (extent) of DCIS: 3 mm. Architectural patterns: Cribriform and papillary. Nuclear grade: grade 1 (low). Necrosis: Not identified. Margins: Margins uninvolved by encapsulated papillary carcinoma. Distance from closest margin: 8 mm, superior Margins uninvolved by DCIS. Distance from closest margin: 11 mm, superior Lymph nodes: Total number of lymph nodes examined (sentinel and nonsentinel): 1. Number of sentinel lymph nodes examined: 1. Number of lymph nodes with tumor cells: 0. Pathologic staging: Primary tumor: See comment. Regional lymph nodes: pN0(i-). Comment: In the WHO Classification of Tumours of the Breast (2012), it is stated that "there is no universal agreement on how to stage encapsulated papillary carcinomas. In the absence of conventional invasive carcinoma, the consensus of the WHO Working Group was that such lesions should be staged and managed as Tis disease." |
For cases diagnosed prior to 2018 Code as encapsulated papillary carcinoma, 8504/3; this is a synonym for intracystic carcinoma (WHO Classification of Tumors of the Breast). Stage this case as invasive. |
2018 |
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20180109 | Date of diagnosis/Ambiguous terminology--Cervix Uteri: Is the date of diagnosis of a cervical pap smear done in December 2017, that states high-grade squamous intraepithelial lesion with features suspicious for invasion, followed by a cervical biopsy in 2018 positive for squamous cell carcinoma, in 2017? Is the ambiguous term used in the cytology in 2017 (suspicious for invasion) to determine diagnosis as the SEER manual states to use the ambiguous cytology as the date of diagnosis if confirmed later. |
Based on the information provided, this is a 2018 diagnosis. SEER has been asked to postpone implementing the instruction about using the date of the ambiguous cytology until 2019 or later. We will be removing that instruction from the draft 2018 SEER manual when it is finalized. |
2018 | |
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20180004 | Reportability/MP/H Rules/Multiple primaries: Is a ganglioneuroblastoma (9490/3) following a melanoma (8720/3) a new primary if the diagnosing pathologist states: "Given the clinical context and patient age, then I believe that this may represent transdifferentiation of metastatic melanoma'? If this is a new primary, what MP/H rule would apply? See Discussion. |
March 2017 lung biopsy showing metastatic melanoma. Subsequent workup shows imaging with additional metastatic involvement of multiple bone sites but no primary tumor is identified. Chemotherapy is started in May 2017. July 2017 biopsy of right lower quadrant mass has a final diagnosis of ganglioneuroblastoma and pathologist's comment states I believe that this may represent transdifferentiation of metastatic melanoma. Later, partial colectomy of transverse colon Gross Description indicates this was centered in the mesentery. |
Abstract two primaries: 1. unknown primary site and 2. peripheral nerves and autonomic nervous system of abdomen, based on Multiple Primaries/Histology for Other Sites Rule M11 (topography codes that differ at the second or third character). While it is possible in rare cases that one tumor transforms into the other, transformations do not factor into the current MP/H rules. |
2018 |
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20180064 | Solid Tumor Rules (2018)/Recurrence--Breast: Does any recurrence within the multiple primaries-stated timeframe count, not those just in the primary site? See Discussion. |
A patient has a left breast cancer diagnosed in 2011; then has a "recurrence" in her lymph nodes in 2017. In 2018, she has a new left breast mass that is the same histology and behavior as the 2011 cancer. Based on the 2017 "recurrence" in the lymph nodes, this is not a new breast primary, is that correct? |
This is a single primary using 2018 Breast Solid Tumor Rule M11. Rule M8 does not apply because the patient was not clinically disease free for 5 years. We are interpreting the 2017 diagnosis as lymph node metastasis from the 2011 breast cancer diagnosis. |
2018 |
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20180076 | Solid Tumor Rules (2018)/Histology--Head & Neck: Where does cytology rank on the Priority Order for Using Documentation to Identify Histology for Head and Neck primaries? See Discussion. |
Cytology is not listed in the Priority Order for Using Documentation to Identify Histology (Histology Coding Rules) in the Head and Neck schema. Other schemas do include cytology in the hierarchy below tissue from a biopsy or resection. Cytology is often less specific than histology, so one would expect cytology to be listed below tissue in this hierarchy. Was this an oversight? Or would cytology be equivalent to histology if it provided the most specific histology for the case? |
Instruction #5 in the Priority Order for Using Documentation to Identify Histology of the Head and Neck Solid Tumor Rules, Item 5.B., refers to cytology in the documentation though cytology is not listed before this. In H&N tumors, cytology is usually performed on lymph nodes and seldom on a primary tumor. Cytology will be added to H&N in the next update. |
2018 |
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20180034 | Reportability--Vulva: Is a biopsy showing high grade squamous intraepithelial lesion (VIN II) in the vulva reportable for cases diagnosed in 2018? See Discussion. |
In comparison to SINQ 20180022, this case does not mention VIN III anywhere in the final diagnosis. Is any mention of HGSIL in the final diagnosis reportable, even if it is qualified with a non-reportable term in parenthesis or CAP protocol? |
Since this HSIL diagnosis is specified as VIN II, do not report it. WHO includes both VIN II and VIN III as synonyms for HSIL of the vulva. HSIL is reportable and VIN III is reportable. VIN II is not reportable. |
2018 |
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20180087 | Solid Tumor Rules (2018)/Multiple Primaries--Brain: How many primaries are there and what M Rule applies when two tumors identified in the brain are pathologically proven to be glioblastoma, IDH-wild type and anaplastic astrocytoma per the pathology report final diagnosis, but the diagnosis comment and tumor board indicates multifocal glioblastoma is favored? See Discussion. |
The patient has one tumor each in the left parietal and left medial temporal lobe. The tumors were excised. The final diagnosis for the left parietal tumor is glioblastoma, IDH-wild type. he final diagnosis of the left medial temporal tumor is, at least anaplastic astrocytoma, WHO grade III; see comment. The comment states: There is a single focus of vascular hyperplasia, separate from neoplastic cells. No necrosis is identified. These findings on their own would warrant a diagnosis of anaplastic astrocytoma, WHO grade III. However, in the context of the patient's glioblastoma in the left parietal lobe, and imaging showing ring-enhancing lesions of the parietal and temporal lobes, this specimen is favored to be an un-sampled glioblastoma, WHO grade IV. The Solid Tumor Rules indicate we may no longer use terms like favor(s) to code the histology, leaving the final diagnosis as the priority source for coding histology per the Histology coding rules. The tumor board review confirmed that, despite the anaplastic astrocytoma on pathology, they felt strongly that this is a multifocal glioblastoma and not an anaplastic astrocytoma. Both the pathologist's comment and the tumor board's assessment indicate this patient does not have two primaries. However, the Solid Tumor Rules do not give priority to the tumor board's assessment over the pathology, and registrars are not to use ambiguous terms to code histology thus leaving the two histologies to consider. Per the Solid Tumor Rules, one tumor that is glioblastoma and one tumor that is anaplastic astrocytoma are multiple primaries per M11 (Abstract multiple primaries when separate, non-contiguous tumors are on different rows in Table 3 in the Equivalent Terms and Definitions. Timing is irrelevant). As a central registry, we cannot ask the pathologist or attending physician for clarification as suggested in Section 3 of the Malignant CNS and Peripheral Nerves Equivalent Terms and Definitions. We can only follow the current Solid Tumor Rules. In doing so, we would have to ignore both the pathologist's and tumor board's assessment that this patient has multifocal glioblastoma. Is there any concern that this will lead to over-reporting? |
Abstract separate primaries based on the two histology codes as these are separate tumors on different rows in Table 3 of the 2018 Solid Tumor Rules for Malignant CNS, Rule M11. The priority order for using documentation to identify histology for Malignant CNS is to use pathology/tissue from the resection over the tumor board. |
2018 |
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20180037 | Date of Diagnosis--Colon: If a patient has a positive Cologuard test, is the date of diagnosis the date of the cologuard test or the date of the biopsy? |
Do not use the date of a positive Cologuard test as the date of diagnosis. |
2018 | |
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20180102 | Solid Tumor Rules 2018/Histology--Brain and CNS: What code should be used for high grade neuroepithelial tumor with BCOR Alteration? See Discussion |
A recent molecular study of PNET tumors at NCI (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5139621) seems to indicate the discovery of four new CNS tumor entities, of which HGNET-BCOR is one. The article suggests that these are not primitive neuroectodermal tumors tumors (PNET), but something different. |
This question was reviewed by an expert neuropathologist. He recommends coding these tumors to malignant tumor, clear cell type 8005/3. He states: these tumors are extremely rare. In summary, CNS HGNET-BCOR represents a rare tumor occurring in young patients with dismal prognosis. Whether CNS HGNET-BCOR should be classified among the category of "embryonal tumors" or within the category of "mesenchymal, nonmeningothelial tumors" remains to be clarified. Because CNS HGNET-BCOR share pathologic features and characteristic BCOR-ITD with clear cell sarcoma of the kidney, these tumors may represent local variants of the same entity. |
2018 |
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20180050 | Reportability/Heme & Lymphoid Neoplasms: Is monoclonal B-cell lymphocytosis reportable? See Discussion. |
We noticed this term was added to the most recent version of the Heme Database (DB) as an alternate name for chronic lymphocytic leukemia/small lymphocytic lymphoma; however we do not recall being notified that this was a new reportable term for code 9823 and the term was not included in the 2018 ICD-O-3 Histology updates. The Definition in the Heme DB for Chronic lymphocytic leukemia/small lymphocytic leukemia (CLL/SLL) includes information that the term was added in the 2016 WHO revision, thus would be reportable back to 2016, is that correct? In addition, the Definition seems to be describing it as a precursor condition to CLL and may never actually evolve into CLL, so it is unclear if this term should really be reportable. Example: 09/08/2016 Onc Note: A/P: monoclonal B-cell lymphocytosis of undetermined significance (MBL): I reviewed with him the results of the bone marrow biopsy. Interestingly, there is no evidence of abnormal plasma cell population by flow cytometry and immunohistochemistry. Nevertheless, flow cytometry does demonstrate a very small population of abnormal and monoclonal B-cell lymphocyte population with immunophenotype consistent with CLL/SLL. Given the very low number of the abnormal B cells, this can be categorized as monoclonal B-cell lymphocytosis (MBL). I recommend surveillance visit in one year. 9/12/2017 Onc note: A/P: Monoclonal B-cell lymphocytosis of undetermined significance (MBL) and IgM MGUS. No symptoms concerning for active disease or progression. Explained that MBL is a very indolent process. Patients with CLL-phenotype MBL progress to CLL at a rate of ~1-2 percent per year. Follow-up in 1 year. Is this case reportable? |
Monoclonal B-cell lymphocytosis is not a reportable condition. This term will be removed from 9823/3 since it is a /1 (has it's own code). This will become much more clear once we get the new WHO Heme terms into the database. |
2018 |