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For tumors diagnosed prior to 2007:

Assign histology code 8160 [Cholangiocarcinoma]. Code from the pathology specimen when available. In this case, the only pathology is from the lymph node specimen.

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.

For cases diagnosed 1/1/2003 and after: Yes, all of the lymph node information should be coded to the Scope of Regional Lymph Node Surgery field using code 7 [Sentinel node biopsy and code 3, 4, or 5 at different times].

The Number of Regional Lymph Nodes Examined field no longer exists for this time frame.

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.

Code what is known. In the example above, the tumor size and the extension are known and can be coded. The information is limited, but not completely missing.

Code what you DO know rather than coding nothing. Any metastases from the kidney would have been discovered during the workup of the rectal cancer.

For cases diagnosed prior to 1/1/2010:This is one primary. Assign code 9590 [Malignant lymphoma, NOS]. This is a composite lymphoma. Code to lymphoma when there is any solid tumor (in lymph nodes, tissue, etc.) Code to lymphoma, NOS since this is not purely follicular and there is no code for composite lymphoma.

For cases diagnosed 2010 forward, 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.

For tumors diagnosed prior to 2007:

No. SEER determines its reportable list from the ICD-O-3. The above terms are listed as tumor-like lesions and conditions, but are not in situ or malignant.

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.

Search for additional information on the location of the primary in this case. A tissue specimen (biopsy) is required for a diagnosis of rhabdoid. Additionaly, there should be scans describing any tumors located in sites other than the biopsy site. If the biopsy site is not assumed to be a metastatic site and is the only location of tumor, code the site of the biopsy as the primary site.

If it is not possible to obtain further information for this case, code the primary site C809 [Unknown primary site].

According to our pathologist consultant, extra-renal rhabdoid tumors have been described in organ sites (liver, GI tract, thyroid, CNS, skin, to name a few) as well as in the soft tissue. Many of the organ site tumors are multiple/multifocal, so multiple tumors in one organ do not necessarily imply metastatic disease and therefore unknown primary site.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Per Rule M2, this is a single primary because there is a single histology mentioned. The histology is coded to 9699/3 [MALT lymphoma]. Code the primary site to C509 [breast] per Rule PH24 which states to code the primary site to the organ when lymphoma is present only in an organ.

Unless your software has edits that prevent coding laterality for lymphomas, code the laterality as bilateral. Up to half of extranodal, extragastric MALT lymphomas occur in multiple sites, particularly in paired sites (breast is an example).

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.

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.

Use the lung schema to code CS for sarcoma of the lung. Complete the CS information as best you can from the medical record WITHOUT using the TNM Soft Tissue Sarcoma staging form. Visceral sarcomas are specifically excluded from soft tissue sarcoma TNM staging and sarcomas are excluded from the TNM staging for lung.

Sarcoma is listed on the Histology Exclusion Table for lung. When a case is coded in Collaborative Staging and the histology is on the exclusion list, SEER Summary Stage 1977 and 2000 can be assigned. For these cases, TNM will not be calculated and displayed results will be "T NA N NA M NA and Stage Group NA".

For cases diagnosed 1998-2003:

Code the EOD-Extension field to 10 [localized disease, solitary plasmacytoma only] for all cases of solitary plasmacytoma.