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Report Produced: 03/02/2026 06:59 AM

Report Question ID Question Discussion Answer Year
20091114 MP/H Rules/Multiple primaries--Breast: Would a left chest wall mass excision stated to be ductal carcinoma consistent with a breast primary and, "compatible with either local recurrence or potentially a metastasis" be a new primary per the MP/H rules? See Discussion. Patient underwent mastectomy in 1986 for infiltrating ductal carcinoma of left breast. Excision of left chest wall mass in March 2009 showed ductal carcinoma consistent with breast primary. The pathology report COMMENT stated it would be compatible with either local recurrence or a metastasis. The patient's primary breast carcinoma material is not available for direct comparison and the MP/H rules instruct us to ignore metastasis. For cases diagnosed 2007 or later, the MP/H rules do not apply to metastasis. If there is no further information available for this case, the MP/H rules do not apply to the 2009 diagnosis. 2009
20091021

Behavior/Reportability--All sites: Would a GIST tumor stated to be "high risk for malignant behavior" be a reportable GIST? See Discussion.

According to our pathologist and oncologist, the terms "malignant" and "benign" do not apply to GIST. Rather, the term "high risk for malignant behavior" is used. This is based on tumor size: greater than 5 cm and mitotic activity: greater than 5 mitoses/50 hpf.

Do not report the case to SEER if it does not satisfy the criteria for reportability. According to the current reportability criteria, malignant GIST (8936/3) is reportable to SEER. GIST coded to 8936/0 or 8936/1 is not reportable. If your pathologist will not indicate "malignant" or "benign," code 8936/1 applies according to ICD-O-3 and, therefore, these are not reportable to SEER.

 2009
20091031 MP/H Rules/Histology--Thyroid: How is histology coded for a thyroid tumor described as "predominantly papillary carcinoma, tall cell variant, follicular type"?

For cases diagnosed 2007 or later, assign code 8340 [Papillary carcinoma, follicular variant] according to rule H15 for Other Sites.

"Predominantly" and "type" indicate specific histologies. "Variant" does not. See rule H13. The histology in this case is papillary and follicular. Tall cell variant is ignored.

 2009
20091019 MP/H Rules/Histology--Hematopoietic, NOS: Can a diagnosis of multiple myeloma be made if a bone marrow biopsy is negative? See Discussion. Patient with large mass nasal cavity. Biopsy shows plasmacytoma. Fine needle aspiration of the acetabulum is consistent with multiple myeloma. Skeletal survey shows multiple lytic lesions. Bone marrow biopsy is negative for myeloma. In light of negative bone marrow biopsy can this case be coded as multiple myeloma?

For cases diagnosed prior to 1/1/2010:Code this case as multiple myeloma. The fine needle aspiration of the acetabulum is a biopsy of bone marrow. According to our pathologist consultant, the positive bone marrow biopsy (acetabulum) and the multiple lytic bone lesions confirm multiple myeloma. The negative bone marrow biopsy is likely due to an insufficient sample.

For cases diagnosed 1/1/10 and later, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

 2009
20091029 MP/H Rules/Histology--Melanoma: How should histology be coded for a melanoma arising in a compound nevus, NOS or a nevus, NOS?

For cases diagnosed 2007 or later, assign code 8720 [Melanoma, NOS] to melanoma arising in a nevus that does not have a specific code or to melanoma arising in a nevus, NOS.

Currently, ICD-O-3 does not have a specific classification for a melanoma arising in a compound nevus.

 2009
20091034 CS Extension--Ovary: How are the following terms coded when they are described in the medical record without any other qualifying information? Seeding, talcum powder appearance, salting, miliary, and studding.

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.Seeding, talcum powder appearance, salting and studding are synonymous with implants. When the size of implants is not stated, but operative report and scans state "seeding," "talcum powder appearance," "salting," and "studding" the CS extension code choice will depend on the location of the seeding, talcum powder appearance, salting, or studding.

The word "miliary" is not documented as a synonym for implants.

The term miliary does not affect the CS extension code choice according to the current CS instructions.

 2009
20091125

Ambiguous terminology/Reportability--Thyroid: Should a thyroid case be accessioned based only on a cytology that is consistent with papillary carcinoma? See Discussion.

Instructions in the 2007 SPCSM state that we are not to accession a case based only on a suspicious cytology. Does this rule apply only to the term "suspicious" or does it apply to all ambiguous terms? Example: FNA of thyroid nodule is consistent with papillary carcinoma.

 Do not accession the case if the cytology is the only information in the medical record. The phrase "Do not accession a case based only on suspicious cytology" means that the cytology is the only information in the record. If there is other information that supports the suspicion of cancer (radiology reports, physician statements, surgery), then accession the case. The phrase "suspicious cytology" includes all of the ambiguous terms. 2009
20091093

Race--How and when is Appendix D, Race and Nationality Descriptions from the 2000 Census and Bureau of Vital Statistics, to be used? See Discussion.

For example, if race is recorded as unknown on the facesheet of a hardcopy medical record or in the race field of an electronic medical record, how should race be coded for the following descriptions found in the history and physical or consultation reports submitted by clinicians?

1) Patient is Czechoslovakian

2) Patient is born in Czechoslovakia

3) Patient is Ethiopian

4) Patient is born in Ethiopia

5) Patient is Japanese

6) Patient is born in Japan

7) Patient is Brazilian

8) Patient is born in Brazil

Would you code these cases any differently if these descriptions were actually used in the race fields in the medical record or on a death certificate?

Code the patient's stated race when possible. Refer to Appendix D, Race and Nationality Descriptions from the 2000 Census and Bureau of Vital Statistics, for guidance.

Use the lists in Appendix D when race is not stated but other information is provided in the medical record. The cases you provide are good examples of the use of Appendix D. They would be coded the same if the descriptions were used in the medical record or death certificate race fields.

 2009
20091115 MP/H Rules/Multiple primaries - - Melanoma: How many primaries are reported when a patient presents with a malignant melanoma (NOS) and a separate lentigo maligna, both on right chest? See Discussion.

MP/H rule M5 states that melanomas with ICD-O-3 histology codes that are different at the third number are multiple primaries. However, the 2007 MP/H fundamentals Webcast session on melanoma rules states that this is not two histologic types. Lentigo maligna is a growth pattern, not a histologic type. Will clarification be included in the next MP/H rules revision?

For cases diagnosed 2007 or later, two primaries are to be reported for this case. Rule M5 applies because there is a difference in the histology codes at the third digit.

Clarifications regarding histologic types of melanoma will be added to the rules when they are revised.

2009
20091062 CS Site Specific Factor--Head & Neck: How is Site Specific Factor 2 coded when the pathologist describes regional lymph nodes as "matted"? See Discussion. The primary tumor is located in the tonsil. The patient underwent neck dissection. Pathology report stated there were matted regional lymph nodes. Does the term matted describe extracapsular extension? The definition for site specific factor 2 uses the term "fixed" to describe extracapsular extension (but not matted). For breast, fixed/matted appear to be interchangeable. Would they also be interchangeable for head and neck cases?

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2."Matted" is not a synonym for "Fixed" in the CS schema for Head and Neck. "Matted" is not indicative of extracapsular extension for the Head and Neck schema.

 2009