Report | Question ID | Question | Discussion | Answer | Year |
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20110047 | Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are to be abstracted when a patient is diagnosed with NHL, large B-cell lymphoma in 3/2010 followed by a "recurrence of previously diagnosed" NHL per a 12/2010 liver biopsy? See Discussion. |
Are there timing rules related to the comparison of slides from a subsequent hematopoietic primary diagnosis to the slides from the original hematopoietic primary diagnosis that impact the number or primaries reported? For example, how many primaries are reported for a patient was diagnosed in 3/2010 with large B-cell lymphoma who underwent 7 rounds of chemo. Per 10/2010 PET scan, there was no evidence of disease. In 12/2010 a liver biopsy revealed, "features consistent with recurrence of previously diagnosed non-Hodgkin lymphoma." The pathologist did not compare slides to the original, but several immunoperoxidase stains were done to obtain the final diagnosis in 12/2010. Does timing or comparison to the original slides matter for Heme & Lymphoid Neoplasms? Is a comparison of slides needed as required for solid tumor "recurrences"? |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph. This case should be accessioned as one primary per Rule M15, 9680/3 [diffuse large B-cell lymphoma]. Per Rule M15 one is to use the Heme DB Multiple Primaries Calculator to determine the number of primaries for all cases that do not meet the criteria of M1-M14. The 12/2010 liver diagnosis of NHL, NOS [9591/3] is the same primary per the Multiple Primaries Calculator. There are no timing rules for lymphoma other than rules M8-M13 which deal with the timing of chronic and acute diagnoses. 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. |
2011 |
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20110046 | MP/H Rules/Multiple primaries--Stomach: If there is no statement of recurrence, how many primaries are to be abstracted when a patient is diagnosed with multiple gastric carcinoid tumors between 12/2003 and 3/2009? See Discussion. |
Are the multiple primary rules applicable when a patient has multiple gastric carcinoid tumors? The patient was diagnosed with carcinoid tumors starting in 12/2003 through 3/2009. According to the 2004 SEER Manual, rule 5, if a tumor with the same histology is identified in the same site at least two months after the original diagnosis, this is a separate primary. The physician does not indicate that the pre-2007 carcinoid tumors were recurrent. The patient does not have familial polyposis syndrome. Should each of the following tumors be a separate primary? 12/2003 - Gastric Polyp Removal - Path: Gastric carcinoid tumor 05/2004 - Stomach body polyp removal - Path: Carcinoid Tumor (endocrine cell tumor) 09/2004 - Single polyp in body removal - Path: Gastric carcinoid 03/2005 - Multiple gastric body polyps removed - Path: Carcinoid tumor 07/2005 - 3 small polyps in fundus removal - Path: Carcinoid tumor 02/2007 - Localized nodularity in lesser curvature - Path: Carcinoid (neuroendocrine) tumor 03/2009 - Stomach body polypectomy - Path: Carcinoid tumor |
Code as a single primary. The histology is carcinoid. Our expert pathology consultant replied as follows: "This patient clearly has a condition driving the proliferation of neuroendocrine cells. Possibilities include hypergastrinemia from a gastrinoma or from response of antral gastrin cells due to achlorhydria from long standing chronic atrophic gastritis, or multiple endocrine neoplasia (MEN1) syndrome (genetically driven). How should these cases be coded given we do not have a way to code the inciting situation. (I suspect the gastroenterologist knows what it is, but we haven't obtained that information.) We do not have an ICD-O-3 code for the underlying condition, MEN1 or hypergastrinemia. Therefore, the only choice is to code the resulting tumor, carcinoid [8240/3]." |
2011 |
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20110007 | MP/H Rules/Multiple primaries--Bladder: How many primaries are to be abstracted and how are the histologies coded when a bladder resection demonstrates tumor with invasive small cell neuroendocrine carcinoma [8041/3], high grade papillary urothelial carcinoma in situ [8130/2], adenocarcinoma in situ [8140/2], and multifocal flat urothelial carcinoma in situ? See Discussion. | Are the areas of in situ tumor to be ignored or would MP/H Rule M9 apply? |
Ignore the in situ histologies. This is a single primary. Code the histology to invasive small cell neuroendocrine carcinoma [8041/3]. | 2011 |
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20091002 | Multiplicity Counter--Ovary: Given the diffuse nature of ovarian cancer, should we count bilateral parenchymal involvment of ovaries as two tumors? See Discussion. |
Are peritoneal implants mets and not counted as separate tumors, even though they're not stated to be metastatic in the path report, and are not coded as distant mets? |
Code Multiplicity Counter to 02 [Two tumors present] for an epithelial ovarian primary involving both ovaries. Do not count the peritoneal implants; they are regional metastasis and not included in the multiplicity counter. An example like this will be added to the manual in the next revision. |
2009 |
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20071093 | Reportability--Brain and CNS: In addition to Schwannoma, are there additional types of benign tumors that arise in peripheral nerves along the spinal cord that are not reportable? See Discussion. | Are neuroepitheliomatous neoplasms such as ganglioneuroma, gangliocytoma, ganglioglioma occurring along the spinal cord reportable? Are nerve sheath tumors such as neuroma occurring along the spinal cord reportable? Angioma? Reference: SINQ 20051071; Primary Central Nervous System Tumors, NPCR Training Materials 2004 |
Reportability depends on the location of the tumor. Tumors in the following sites are reportable:
Benign and borderline tumors of the peripheral nerves (C47_), including peripheral nerves along the spinal cord, are not reportable.
Please note: spinal schwannomas arising in the nerve root or spinal dura are reportable. |
2007 |
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20110110 | MP/H Rules/Multiple primaries--Head & Neck: If a 1991 neuroesthesioblastoma [9522/3] of the nasal cavity has subsequent recurrences of the same histology but later "recurs" in 2008 with "sarcoma, NOS, high grade" on a biopsy and a "high grade fibrosarcomatous transformation of esthesioneuroblastoma" [8810/3] on resection, should the subsequent tumor be reported as a new primary if the clinician continues to refer to the tumor as a "recurrence"? See Discussion. |
Are histologic transformations always recurrences of the original tumor? |
Assuming the same primary site for the 2008 lesion, according to the current MP/H rules the high grade fibrosarcoma [8810/3] is a new primary per Head & Neck MPH rule 11 because it is a different histology. The revised MP/H rules will include tables to define tumors that de-differentiate (transform) and recur with what is seemingly a different histology. Although the rules will be changed in the future, we must use the rules in place at this time for this case. |
2011 |
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20130148 | Reportability--Brain and CNS: Are "spinal" schwannomas reportable if stated to be extradural, vertebral nerve sheath, or of specific vertebrae? See Discussion. | Are any of the following cases reportable?
Example 1: Clinical Diagnosis: Extradural spinal cord tumor compatible with schwannoma. What assumptions should be made about reportability if the tumor is described as being extradural? The extradural spinal cord includes epidural fat surrounding the thecal sac and exiting nerve roots. Does this mean there are not nerve roots in the extradural spinal cord?
Example 2: Final Pathologic Diagnosis: Designated "C3-4 nerve sheath tumor" excision: Morphologic and immunohistochemical findings consistent with cellular schwannoma. When stated to be a "nerve sheath tumor" does that mean peripheral nerve (C47_) involvement or nerve root (C72_) involvement?
Example 3: Final Pathologic Diagnosis: T-8 vertebral tumor resection: Schwannoma with degenerative changes (calcification, cyst formation) - ganglion and nerve are identified. There is no mention clinically or pathologically whether this tumor is "intradural" or "of the nerve root." In the absence of information about whether the location of the tumor is intradural or involving the nerve root, is it assumed that it does involve this part of the spinal cord when a specific vertebrae is removed? |
Extradural schwannomas are not reportable. Neither vertebral nerve sheath nor a location of/on a specific vertebrae confirm the origin as being either extradural or intradural. Do not report a schwannoma if it cannot be determined to be "intradural" or "of the nerve root." | 2013 |
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20190057 | Reportability/Histology--Penis: Are and (PeIN) equivalent to PeIN3 and thus reportable? See Discussion. |
Appendix E1 of the 2018 SEER manual references a similar diagnosis as being reportable for vulva and vagina only. However, the WHO Classification of Tumors of the Urinary System and Male Genital Organs (4th ed) does include high grade penile intraepithelial neoplasia as a synonym for 8077/2. |
Penile intraepithelial neoplasia, grade III (PeIN III) and squamous cell carcinoma in situ of the penis are reportable. If possible, query the physicians as to whether "high grade penile intraepithelial lesion" or are synonymous with one of the reportable terms. If no further information can be obtained, report the case as C609 8077/2, and use text fields to document the details. |
2019 |
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20240004 | Reportability/Histology--Skin: Is a malignant spindle cell neoplasm consistent with atypical fibroxanthoma reportable for cases diagnosed 1/1/2023 and later, after thorough immunohistochemical work-up? See Discussion. |
Appendix E1 in both the 2023 and 2024 SEER Program Coding and Staging Manual (SPCSM) lists these malignant spindle cell neoplasms, consistent with atypical fibroxanthoma, as reportable when other tumors have been ruled out with immunohistochemistry. This contradicts both SINQ 20190102 and the Solid Tumor Rules (STRs) general instructions indicating ambiguous terminology (e.g., “consistent with”) cannot be used to code the more specific histology when there is a NOS (malignant spindle cell neoplasm, 8004/3) and a more specific (malignant atypical fibroxanthoma, 8830/3) histology. These tumors are typically diagnosed and treated in dermatology offices, so further chart review or confirmation by a physician is not possible for central registries. As non-melanoma skin primaries are included in the Other Sites schema, and this schema was updated for cases diagnosed 2023 and later, which instruction applies to 2023+ diagnoses? Should these continue to be collected per Appendix E1 despite the conflict with the STR Manual and SINQ? If these are reportable, should the SINQ and STR Manual be updated to reflect this? Or should these be non-reportable per the STR Manual and SINQ? |
Report malignant spindle cell neoplasms consistent with atypical fibroxanthoma as directed by Appendix E.1 of the 2023 and 2024 versions of the SEER Manual using 8830/3 (fibroxanthoma, malignant). We will update the answer in SINQ 20190102. While the Other Sites Solid Tumor Rules address coding an NOS and specific histology sub-type/variant, this situation is not specifically addressed. We will also review the rules. |
2024 |
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20180071 | Solid Tumor Rules (2018)/Histology--Cervix uteri: What is the correct histology code for malignant mixed Mullerian tumor (MMMT/Carcinosarcoma)? See Discussion. |
An endometrial cancer was diagnosed in 2018. The endometrial biopsy showed malignant mixed mullerian tumor (MMMT/Carcinosarcoma). The total abdominal hysterectomy/bilateral salpingo-oophorectomy showed Endometrial Carcinosarcoma (50% serous carcinoma, 50% high grade sarcoma with rhabdomyoblastic differentiation) with invasion of 100% of the myometrium and involvement of the uterine serosa. I am not finding this in the Solid Tumor Rules or the site-specific ICD-O-3 code lists. |
According to the WHO Classificationof Tumors of Female Reproductive Organs, 4th edition, MMMT (8950/3) is now a synonym for carcinosarcoma (8980/3) even though it has a separate ICD-O code. The ICD-O code for MMMT is no longer in the WHO book. Per the subject matter experts, when both terms are used in the diagnosis (carcinosarcoma/MMMT), code the histology to 8980/3. If the ONLY term used is MMMT, assign 8950/3. The information in the 4th edition of the WHO Classification of Tumors of Female Reproductive Organs has not yet been incorporated into the Other Sites Solid Tumor Rules. |
2018 |