Report | Question ID | Question | Discussion | Answer | Year |
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20150034 | MP/H/Histology/neuroendocrine : How should the following histologies with neuroendocrine differentiation be coded?
1. Bladder - Invasive urothelial carcinoma with neuroendocrine differentiation
2. Nasopharnyx - Undifferentiated nonkeratinizing nasopharyngeal carcinoma with neuroendocrine differentiation
3. Ductal carcinoma in situ (with neuroendocrine features) cribriform and solid patterns
See discussion. |
We are starting to see more specific histologies with neuroendocrine differentiation. How are we to deal with these histologies and will this be addressed in the revised MP/H rules? |
The term neuroendocrine is often included with other histologies and usually means that neuroendocrine cells are present but not neuroendocrine tumor.
1. If the neuroendocrine cells are stated to be either small cell or large cell, code that histology; however, neuroendocrine, NOS mixed with urothelial does not have an applicable mixed code. Code histology to 8120.
2. Code histology to squamous cell carcinoma, nonkeratinizing, NOS (8072/3). The neuroendocrine component is not specified as either small cell or large cell.
3. Code to 8523/2 per MP/H Rule H6 as intraductal mixed with other types of carcinoma present.
Note that while neuroendocrine differentiation can be identified, it seems to have no prognostic implications. We have consulted with our site specific Subject Matter Experts on how best to capture neuroendocrine, NOS when combined with other histologies. These instructions will be included in the revision of the MP/H rules including the wording of MP/H breast rule H6. |
2015 |
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20140046 | MP/H/Multiple Primaries--Urinary: Is this one primary with a C689 primary code and morphology 8130/3? Or is this 2 primaries: 1. C679 8130/3 and 2.C680 8120/2. See discussion. |
Urinary: Transitional Cell Carcinoma and open prostatectomy: Path from Bladder: Papillary and solid transitional cell carcinoma of bladder - grade II and III Stage A.
Path from prostatectomy: The prostatic tissue samples shows areas of urothelia carcinoma in situ - related to the tumor present in the bladder.
Conclusion: Prostatectomy showing foci of transitional cell carcinoma in situ of prostatic urethra. |
Abstract a single primary, C679 8130/3. Rules M2 and H4 apply. Transitional cell/urothelial carcinoma in the prostatic urethra is likely an extension from the known bladder TCC in this case, not a separate primary. See prostatic urethra on page 63 in the Urinary Terms and Definitions, http://www.seer.cancer.gov/tools/mphrules/mphrules_definitions.pdf |
2014 |
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20140054 | MP/H/Multiple primaries--Stomach: How should I report this case? I reviwed both the MP/H and the Heme Rules and could not determine whether or not this case is multiple primaries in a single site but two histologies and therefore needing two separate abstracts.
Path Diagnosis: Gastric Mass Biopsy: 1) Signet Ring Cell Carcinoma. 2) Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue (MALT Lymphoma). 3) Mild Intestinal Metaplasia and Marked Fundic Gland Atrophy, Negative for H Pylori. Comments: Biopsy shows presence of both signet ring carcinoma and MALT Lymphoma. |
Report two primaries: MALT lymphoma and signet ring carcinoma. Use the 2007 MP/H rules and the Heme rules for this case.
This case could be an example of a "collision tumor" - two separate tumors that grow together into one mass. Collision tumors are a rare exception to rule M2 in the MP/H rules. |
2014 | |
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20140047 | MP/H/Multiple primaries--Urinary: In Aug 2008 Patient was diagnosed with Noninvasive Bladder Cancer. In Oct 2013 Patient was diagnosed with Transitional Cell Carcinoma of Right Ureter involving lamina propria, Noninvasive Transitional Cell Carcinoma Left Ureter and Invasive Transitional Cell Carcinoma of Prostatic Urethra. Is this a new primary and what is the primary site? |
Rule M7 applies when comparing the 2008 diagnosis to the 2013 diagnosis: multiple primaries.
Rule M8 applies to the tumors identified in 2013: single primary.
Based on the information provided, code the primary site for 2013 to C689 because there is no indication of the site of origin among the involved sites. |
2014 | |
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20170018 | MPH Rules/Multiple primaries--Melanoma: Does MP/H Rule M7 (diagnosed more than 60 days apart) apply to invasive melanoma cases with margins positive for in situ melanoma, or are these further excision of the original diagnosis and the same primary, even when it appears treatment was complete after the initial excision? See Discussion. |
A dementia patient has been managed for a persistent right cheek skin lesion that has been slow growing for about 5 years. It was biopsied in 12/23/15 revealing a Breslow 0.12 mm lentigo maligna melanoma by an outside provider. A larger resection of the lesion on 2/3/16 demonstrated a Breslow 0.30 mm lentigo maligna melanoma with melanoma in situ present at the margins per the available pathology report. There was no statement in the record that any additional treatment was planned or necessary. Patient healed well from the 2/3/16 procedure but developed a recurrent lesion in May that was biopsied on 5/10/16 by the same outside provider which again reveal lentigo maligna melanoma. 7/5/16 Reexcision at the current facility revealed a Breslow 6.1 mm lentigo maligna melanoma, Clarks level V. This was a cutaneous tumor per the path report and not a subcutaneous nodule. Clinically, the MD called this a , but there was no slide comparison to the previous melanoma. In auditing files for expected (but not received) abstracts due from facilities, we've observed these types of cases not being consistently reported as multiple primaries. |
Rule M7 pertains to separate tumors. Rule M7 does not apply to invasive melanoma cases with margins positive for in situ melanoma. Based on the information provided, it is not clear whether or not the 5/10/16 diagnosis is a separate lesion or the same lesion that was diagnosed earlier. |
2017 |
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20180019 | Marital Status: Is Marital Status always a self-reported status? See Discussion. |
The SEER Manual states that Marriage is self-reported for the instruction in code 2, but it does not indicate if all other marital statuses are self-reported. Examples: How is Marital Status reported for the following situations? 1. Patient with multiple tumors in the database, for the first tumor marital status is reported as married (code 2), for the subsequent tumor, marital status is reported as single (code 1). 2. Patient self- reports as single, but also has children. 3. Patient states they are in common law marriage, but our state is not a common law marriage state. |
Marital Status is self-reported because the information is recorded in the medical record based on information obtained from the patient. Use text fields to document relevant information. Examples 1. Assign code 2 for the first tumor and assign code 1 for the subsequent tumor unless the available information indicates the patient is divorced at the time of the subsequent tumor diagnosis. Patient may self-report single after a divorce. Assign code 4 in that situation. The code assigned for marital status reflects the patient's marital status at the time of diagnosis for the tumor being abstracted. It is possible that marital status may be different for each tumor if the patient has multiple tumors. 2. If marital status is stated to be single, assign code 1. 3. If marital status is stated to be common law marriage, assign code 2. Common Law Marriage is defined as a couple living together for a period of time and declaring themselves as married to friends, family, and the community, having never gone through a formal ceremony or obtained a marriage license. |
2018 |
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20210068 | Mets at Diagnosis Fields/Primary Site--Lymph Nodes: How are the Mets at Diagnosis fields coded when the metastatic adenocarcinoma involves only one lymph node area and the primary site is unknown? See Discussion. |
In 2018, patient has lymph node metastasis confined to left retroperitoneal area; core biopsy was done which showed metastatic adenocarcinoma, unknown primary site. There are no other sites of disease found. Should I code Mets at Diagnosis--Distant Lymph Node(s) as 1, and the others such as bone and lung as 0? |
In a situation like this with one area of metastatic involvement and an unknown primary, if there is no further information, we advise that the metastasis are "regional" until/unless proven otherwise. With this in mind, code the Mets at Diagnosis fields as 0, including the Mets at Diagnosis--Distant Lymph Node(s). This case should continue to be worked up to identify the primary site. If a primary site is identified later, update the abstract accordingly. In the meantime, use text fields to describe the situation. |
2021 |
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20160060 | Mets at diagnosis fields--Heme & Lymphoid Neoplasms (Lymphoma): How are Mets at Diagnosis -- Bone, Brain, Liver, Lung, Lymph Node, and Other -- to be coded for lymphomas in 2016? Are they always 0 if the TNM Stage is I, II, or III? How is bone marrow involvement coded -- in which Mets at Diagnosis field? |
Note: Answer verified Sept. 2019, still valid for current cases. Code all mets at diagnosis fields to 0 when the Stage is I, II, or III. When the lymphoma is Stage IV, one of the mets at dx fields (other than Mets at Dx-Distant lymph nodes) needs to be coded to 1. Stage IV indicates that there is multiple extralymphatic organ involvement, diffuse involvement of an organ; liver, brain, lung or bone involvement, or bone marrow involvement. For bone, brain, liver, and lung, code these as 1 when these sites are involved and they are not the primary site. This is the same instruction for solid tumor neoplasms. For mets at dx-distant lymph nodes, always code to 0. For lymphomas, lymph node involvement is included in stage and not based on whether they are regional or distant. For mets at dx-other, code to 1 for bone marrow involvement or if there is multi extralymphatic organ involvement. |
2016 | |
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20010096 | Multiple Primaries (Pre-2007)--Bladder: Should an invasive malignancy following an in situ malignancy by more than two months be a new primary? Why? See discussion. |
Example: An in situ bladder case was diagnosed and treated. Three months later another TURB diagnosed an invasive bladder carcinoma. Is the invasive case reportable to SEER as a new primary? |
For tumors diagnosed prior to 2007: Yes. These are two primaries. In situ cancers are not included in SEER incidence rates. Incidence rates must correlate with mortality rates. For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules. |
2001 |
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20031056 | Multiple Primaries (Pre-2007)--Breast: For a patient with a remote history of lobular breast carcinoma, would a new diagnosis of lobular breast carcinoma with DCIS be a new primary, even though the physician designates it as recurrent? See Description. |
A history of right breast lobular ca in 1991 treated with a partial mastectomy. Diagnosed 3/02 with "recurrent right breast ca" per physician; pathology in 2002 is lobular and DCIS. Would the DCIS make this a new primary regardless of the physician's designation of 'recurrent' or is this the same primary? |
For tumors diagnosed prior to 2007: Accession as two breast primaries -- the first lobular ca in 1991; the second lobular and DCIS in 2002. The differing histologies and the length of time between them negate the physician's designation as "recurrent" in this case. For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules. |
2003 |