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Report Produced: 12/23/2025 08:03 AM

Report Question ID Question Discussion Answer Year
20031143

Ambiguous terminology/EOD-Extension: Is the term "within" a term of involvement in coding extent of disease? See Description.

For example: a kidney tumor is described as "completely encased within the renal capsule with no extension into perirenal fat." Does this mean the renal capsule has been invaded (extension code 20) or that the tumor is totally contained within an area surrounded by the renal capsule (extension code 10)?

For cases diagnosed 1998-2003: The term "within" is not one of the listed ambiguous terms for EOD. Determine extent of involvement from the context in which "within" appears.

In the example, "Encased" is an ambiguous term meaning not involved. Code extension for the example to 10 [Invasive cancer confined to kidney cortex and/or medulla].

 2003
20031034

Histology (Pre-2007)--Kidney, renal pelvis: What codes are used to represent the histologies of 1) "renal papillary (chromophil) carcinoma" and 2) "chromophil renal cell carcinoma?"

For tumors diagnosed prior to 2007:

Code "chromophil" to 8260 [papillary renal cell]. According to our pathologist consultant, in the case of chromophil, most authors regard this as more or less synonymous with papillary renal cell [8260]. "More or less" because papillary is an old term descriptive of the microscopic structure, while chromophil is newer and based on the cytology; because most of the latter are papillary the current usage assumes them to be equivalent.

1) The diagnosis "renal papillary (chromophil) carcinoma" tells us that the pathologist who wrote it was seeing both pattern and cytologic features, and is regarding papillary equivalent to chromophil; thus, code to 8260.

2) Code "chromophil renal cell carcinoma" to 8260.

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
20031181

EOD-Extension--Kaposi Sarcoma: Is a "markedly enlarged spleen" involvement for cases of Kaposi Sarcoma?

For cases diagnosed 1998-2003: No. Splenomegaly is not synonymous with "extension to" or "involvement of" the spleen in Kaposi's sarcoma. Look for a definite statement of Kaposi's lesion(s) involving the spleen.

 2003
20031025 Histology (Pre-2007): Is a small cell undifferentiated carcinoma coded to 8041/34 [small cell carcinoma undifferentiated] or to 8045/34 [combination small cell AND undifferentiated carcinoma] using terms from the 2 columns in Appendix 1 of Coding Complex Morphologic Diagnoses? See discussion. Per pathology report, diagnosis is small cell undifferentiated carcinoma in biopsies taken from the laryngeal surface of the epiglottis and left false vocal cord.

For tumors diagnosed prior to 2007:

Code histology as 8041/34 [small cell carcinoma, undifferentiated]. The diagnosis indicates that this is an undifferentiated small cell carcinoma, rather than a mixture of small cell carcinoma with undifferentiated carcinoma.

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
20031039

EOD-Clinical Extension--Liver: How do the segments of the liver described by AJCC Manual correspond to the lobes of the liver described by the SEER EOD Manual? See Description.

CT described hepatocellular ca involvement of the liver with nodules identified in segments 5 and 7. Would EOD-extension be coded to 30 [multiple tumors (one lobe)]?

Segments 2, 3, and 4 correspond to the left lobe of the liver. Segments 5, 6, 7 and 8 correspond to the right lobe of the liver. Segment 1 is the caudate lobe, which has completely different drainage and vascularization, is separate from the larger right and left lobes.

For cases diagnosed 1998-2003: Since segments 5 and 7 are both in the right lobe, assign EOD-extension code 30 for the case above, unless there is mention of vascular invasion. Be sure to record the size of the largest primary tumor.

Tumor size and vascular invasion are the most important factors for AJCC 6th edition staging.

 2003
20031184

Surgery of Primary Site--Breast: How is this field coded when a patient has a reduction mammoplasty (for macromastia) and within the pathology specimen there is an incidental finding of carcinoma?

Code this reduction mammoplasty to the code which best fits the amount of tissue removed. Read the operative report carefully. Code as a partial mastectomy, skin- nipple- areola-sparing mastectomy, or total (simple) mastectomy. Use text fields to record the details.

 2003
20031106

Reportability--Appendix: Is an appendiceal carcinoid with one periappendiceal lymph node positive for metastatic carcinoid tumor reportable to SEER? See Discussion.

The patient had an appendectomy followed by a hemicolectomy. No residual carcinoid tumor was identified but there was one lymph node positive for metastatic carcinoid tumor.

Yes, this carcinoid is reportable to SEER. This carcinoid is malignant by virture of the lymph node metastasis. Code the behavior as /3.

2003
20031075 EOD-Extension--Colon: How should this field be coded for "adenocarcinoma penetrating through bowel wall into adjacent adipose tissue? For cases diagnosed 1998-2003: The difference between EOD-extension codes 40 and 45 is the level of the fat involved. Code 40 is subserosal fat immediately adjacent to the muscular wall of the colon inside the serosa/visceral peritoneum. Code 45 is pericolic fat in areas where there is a serosal surface or in the retroperitoneal areas of the ascending and descending colon where there is no serosa. Code 42 was added for use when it is not possible to determine whether subserosal fat or pericolic fat is involved. Code 42 should be used only when there is a reference to 'fat' (NOS) The answer for the case example above depends on the location of the primary and whether the fat referred to is within or outside the entire thickness of the colon wall. If no additional information is available, use code 42 [Fat, NOS]. 2003
20031078 EOD-Lymph Nodes--Colon: Are "multiple submucosal lymphoid collections infiltrated with tumor" or "lymphoid areas" coded as lymph node involvement, similar to the way nodules in the pericolic fat are coded? See Description. For an adenocarcinoma in the colon, under the "lymph node" section of the final path diagnosis it states "multiple submucosal lymphoid collections infiltrated with tumor" in addition to "one of two involved lymph nodes." The micro description states "There are multiple small lymphoid areas with tumor. A definite node excised from the mesentery shows...replacement of stroma and an additional very small node shows no tumor."

For cases diagnosed 1998-2003: No, do not code tumor infiltration of lymphoid collections or lymphoid areas as lymph node involvement.

However, code lymph node involvement for this case as 3 [mesenteric, NOS] because a mesenteric node is involved.

Regarding tumor infiltration of lymphoid collections or lymphoid areas from our pathologist consultant: Unless the anatomy of lymph node is evident (sinuses, trabeculae, primary and secondary follicles) these aren't lymph nodes and should not be coded as such. Unless there is evidence to the contrary in the path report, I would suggest that this be considered intramural spread, not lymph node spread.

 2003
20031116

EOD-Size of Primary Tumor: Can the term "filling defect" be used to code tumor size? See Description.

Site: Bladder

CT abd/pelvis: 4 cm filling defect of the bladder encasing jetstream of distal ureter. 2-3 cm lesion may be extension to bladder. KUB: 3-4 cm filling defect within bladder.

Cystoscopy: large bladder tumor with small tumor extending out of the large tumor.

OP Findings: Large tumor on right of bladder extending from bladder neck lateral and posterior

Pathology: TURB: High grade TCC, Grade III with focal lamina propria invasion.

For tumors diagnosed 1998-2003:

Information on size from imaging/radiographic techniques can be used to code size when there is no more specific size information from a pathology or operative report, but it should be taken as low priority, just above a physical exam.

The term "filling defect" from a CT or KUB may be used to code tumor size for bladder in the absence of more reliable size information from path, operative or endoscopic reports.

 2003