Report | Question ID | Question | Discussion | Answer | Year |
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20160050 | Reportability--Appendix: Is a mucinous cystic neoplasm with high grade dysplasia of the appendix reportable? See discussion. |
The language appears similar to the mucinous cystic neoplasm of the pancreas with high grade dysplasia (8470/2), which was clarified to be reportable in 2014. |
WHO does not list MCN as a histology for the appendix. This case should be clarified with the pathologist.
For pancreas specifically, the term "mucinous cystic neoplasm (MCN) with high grade dysplasia" replaced the term "mucinous cystadenocarcinoma, noninvasive" according to WHO. MCN with high grade dysplasia of the pancreas is reportable because it is used in place of the now obsolete terminology. If we did not make the new terminology reportable, trends over time could be affected.
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2016 |
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20220038 | Solid Tumor Rules/Histology--Thyroid: What is the histology code for sclerosing mucoepidermoid carcinoma with eosinophilla in the left thyroid and papillary thyroid carcinoma in the right thyroid? See Discussion. |
The left thyroid lobectomy/isthmusectomy returned a diagnosis of sclerosing mucoepidermoid carcinoma with eosinophina, 6.5 cm, replacing nearly the entire left lobe of the thyroid. The patient has a completion thyroidectomy of the right lobe and returned the diagnosis of papillary thyroid carcinoma, 0.5 mm, in maximum dimension. The endocrinologist describes it as "co-exsisting" and states the tumor is iodine non-avid. |
Abstract two primaries and assign code 8260/3 (papillary adenocarcinoma, NOS) to the right thyroid using Solid Tumor Rules, Other Sites, Rule H14, and 8430/3 (mucoepidermoid carcinoma) to the left thyroid as these are separate tumors with different histology types according to WHO Classification of Tumors of Endocrine Organs, 4th edition. |
2022 |
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20031101 | Primary Site/Behavior Code/EOD-Extension: How would these fields be coded for "squamous cell carcinoma in situ involving papilloma -- locally aggressive but not technically invasive" found in the sphenoid sinus, soft tissue of the skull base and brain? See Description. | The managing physician has staged this pathologically as T4 N0 M0 squamous cell carcinoma of the ethmoid sinuses. The final pathology report says " Sinus, sphenoid, resection: papillary neoplasm most consistent with inverted papilloma with squamous cell carcinoma in situ, 7 cm in greatest extent, focus of probable superficial invasion (see comment). Soft tissue, skull base, excision: involved by papillary neoplasm with squamous cell carcinoma in situ (see comment). Brain, extradural, intercranial biopsy: involved by papilloma with squamous cell carcinoma in situ. COMMENT: This is a predominantly exophytic neoplasm with infolding of the tumor epithelium and in situ extension into submucosal glands. There are only focal areas suspicious for invasive squamous cell carcinoma, with probable invasion (<2mm) in one section....The histologic features are most consistent with an inverted papilloma with carcinoma in situ." When asked to comfirm if the diagnosis were in situ or superficially invasive, the pathologist responded "Squamous cell carcinoma in situ involving a papilloma. Locally aggressive but not technically invasive." |
Code site to C31.3 [sphenoid sinus]. Code the site based on the final pathology report diagnosis. In the case example, the site attributed to the managing physician appears to be an error.
Code behavior to 3 [malignant, primary site]. The SEER list of terms meaning involvement may be used to help determine behavior. The terms used by the pathologist are "probable" superficial invasion and "suspicious" for invasive squamous cell carcinoma with "probable" invasion. Interpret as invasive.
For cases diagnosed 1998-2003: Code extension to 70 [Brain] because this tumor involves the brain. |
2003 |
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20140007 | Surgery of Primary Site--Lung: How is surgery coded when a patient undergoes a mediastinoscopy with mediastinal lymph node sampling and then a later upper lobectomy? See discussion. | The mediastinal nodes were submitted as a separate specimen. The patient also had several peribronchial nodes identified within the lobectomy specimen. Does code 33 (Lobectomy with mediastinal lymph node dissection) require a complete mediastinal lymph node dissection (i.e. the removal of all lymph nodes in mediastinal chain(s) as opposed to a selective sampling/dissection of lymph nodes from multiple mediastinal chains)? |
Assign code 33 in this situation. Code 33 can include mediastinal lymph node sampling. | 2014 |
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20100059 | Surgery of Primary Site--Brain and CNS: How should this field be coded when the procedure is stated to be a "stereotactic CORE biopsy" of a brain tumor? See Discussion. | The most recent version of the Brain Site Specific Surgery schema has a note that states "Assign code 20 [Local excision of tumor, lesion, or mass, excisional biopsy] for stereotactic biopsy of brain tumor." Does this also apply to a stereotactic CORE biopsy?
SINQ 20081118 also states that a stereotactic biopsy should be coded as Surgery of Primary Site code 20. |
Assign code 20 [Local excision of tumor, lesion, or mass, excisional biopsy] for a stereotactic core biopsy of brain tumor. | 2010 |
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20150061 | Reportability--Vulva: Is this reportable? We have begun to see the following diagnosis on biopsies of the vulva with the statement below. The diagnosis is being given as simply VULVAR INTRAEPITHELIAL NEOPLASIA, no grade is noted. See discussion. |
The note explains: The International Society for the Study of Vulvovaginal Disease (ISSVD) in 2004 revised its classification of VIN by eliminating VIN 1 and combining VIN 2 and VIN 3 into a single category (see table below). Classification of VIN (usual type) ISSVD [International Society for the Study of Vulvovaginal Disease]1986 classification 2004 classification VIN 1 VIN2 VIN3 VIN Note: VIN 2 and VIN 3 combined into single [non-graded] category, VIN Reference: Scurry J and Wilkinson EJ. Review of terminology of precursors of vulvar squamous cell carcinoma. Journal of lower genital tract disease, 2006; 10(3): 161-169 |
Vulvar intraepithelial neoplasia with no grade specified is not reportable. Reportability instructions have not changed. See page 11 in the SEER manual, http://seer.cancer.gov/manuals/2015/SPCSM_2015_maindoc.pdf |
2015 |
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20180054 | Solid Tumor Rules (2018)/Histology--Bladder: Under the Terms that are Not Equivalent or Equal section (Urinary Equivalent Terms and Definitions) it indicates noninvasive is not equivalent to papillary urothelial carcinoma and one should code the histology documented by the pathologist. However, many pathologists use Ta as both the description of the stage and the histology. Should this note be amended? See Discussion. |
The note in the Urinary Terms and Definition states, Both Ta and Tis tumors are technically noninvasive. Code the histology specified by the pathologist. While it is true that both Ta and Tis are technically noninvasive, the AJCC defines Ta specifically for, A pathologist's use of Ta does indicate the noninvasive carcinoma did arise from a papillary tumor. However, not all pathologists use terminology that, following the Urinary Solid Tumor Histology Coding Rules, will result in a histology coded to 8130, despite an AJCC-defined Ta (noninvasive papillary carcinoma) tumor having been diagnosed because the tumor projected from the wall on a stalk. In our region a number of pathologists provide the following types of diagnosis. Histologic type: Noninvasive. Histologic grade (WHO/ISUP 2016): High-grade. Tumor configuration: Papillary. The pathologist and/or physician may then stage this as Ta. How is the histology coded for these cases if the H Rules do not allow one to code the papillary and noninvasive Ta disease as not equivalent to noninvasive papillary carcinoma? Flat (in situ) urothelial carcinoma has an increased risk of invasive disease compared to the noninvasive papillary urothelial carcinomas. Will there be inconsistencies or a resulting impact to analysis of truly flat/in situ urothelial carcinoma vs. papillary urothelial carcinomas if the papillary tumors are not being coded as such? |
Per the April 2019 update: Noninvasive; papillary urothelial carcinoma; flat urothelial carcinoma Note: Noninvasive is not equivalent to either papillary urothelial or flat urothelial carcinoma. Both Ta and Tis tumors are technically noninvasive. Code the histology specified by the pathologist. |
2018 |
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20240050 | Solid Tumor Rules/Multiple Primaries--Vulva: Why is there no M Rule in the Other Sites Multiple Primary Rules related to extramammary Paget disease of the vulva? See Discussion. |
The only Other Sites H Rule related to extramammary Paget disease is included in the Multiple Tumors Abstracted as a Single Primary module. Rule H28 instructs one to code the histology of the underlying tumor when there is extramammary Paget disease and an underlying tumor of the anus, perianal region, or vulva. Therefore, a vulvar extramammary Paget disease with underlying adenocarcinoma is coded as adenocarcinoma (8140/3), and not extramammary Paget disease (8542/3). However, there is no M Rule confirming extramammary Paget disease and the underlying adenocarcinoma are a single primary (i.e., multiple tumors abstracted as a single primary) making it difficult for one to use the Multiple Tumors Abstracted as a Single Primary H rules module. We recognize this is a longstanding histology coding rule, but how are registrars supposed to arrive at Rule H28 when the M Rules must be applied first and do not instruct one to accession a single primary? Moreover, if this is to be a single primary (per rule M2), why is there no H Rule in the Single Tumor module? |
In sites other than breast (see Breast Solid Tumor Rules M8/M9), Paget disease with underlying invasive disease is a single primary and the underlying histology is coded. Primary Paget disease of the vulva is uncommon, and we cannot create rules for all possible situations in the Other Sites module. A GYN specific module is in development, and we will look into adding a Paget-related rule. It will differ because Paget in breast is a different situation while Paget in the vulva is always adenocarcinoma. Paget disease of the vulva is an in-situ adenocarcinoma of vulvar skin with or without an underlying adenocarcinoma (WHO Classification of Female Genital Tumors, 5th ed.). When there is a statement of “underlying” adenocarcinoma, it is a single primary as with Breast Solid Tumor Rule M8. |
2024 |
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20000420 | Date of Diagnosis--All Sites: Is it better to estimate the month in the date of diagnosis field using the re-excision pathology report date or code the month to unknown if the only available information is the re-excision date? See discussion. | The only available information is the following pathology report:
On 7/18/00 a wide excision of the primary lesion is done. The report reads, "Lesion approximately 1 cm. Residual superficial spreading malignant melanoma with deepest penetration 4 mm." |
Code the Date of Diagnosis field to 07/2000 for this case. Estimate the month of diagnosis whenever possible.
Given the usual delay between the initial excision of the lesion and a wide excision for a melanoma, estimate the month of diagnosis as July. |
2000 |
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20130066 | Multiple primaries--Heme & Lymphoid Neoplasms (Lymphoma): How many primaries are accessioned when a patient is diagnosed in 2003 with diffuse large B-cell lymphoma on an inguinal lymph node biopsy followed by a 2012 diagnosis of diffuse large B-cell lymphoma on a cervical lymph node biopsy? See Discussion. |
The only documentation in the record is that there is a history of DLBCL. |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph. Accession a single primary, diffuse large B-cell lymphoma [9680/3] diagnosed in 2003 per Rule M2. Abstract a single primary when there is a single histology. Per Rule M2, Note 2, a recurrence of the same histology is always a single primary (timing is not relevant). 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. |
2013 |