Reportability: Is a "pleomorphic hyalinizing angiectatic tumor of soft parts (PHAT)" reportable if the case has a TNM stage assigned and is stated by the pathologist to be a rare intermediate grade sarcoma?
Pleomorphic hyalinizing angiectatic tumors of the soft parts are not reportable.
According to our pathologist consultant, PHAT is a borderline malignancy (/1). While the true nature of these tumors is under debate (reactive vs. neoplastic), so far none have metastasized.
Surgical Procedure of Other Site: Is the excision of a distant lymph node or a fine needle aspirate (FNA) of a distant lymph node coded as a Surgical Procedure of Other Site, even though they are performed for diagnostic purposes and not intended as treatment?
For cases diagnosed 1/1/2003 and after: Code the Surgical Procedure of Other Site field to 3 [Non-primary surgical procedure to distant lymph nodes] for an excision of a distant lymph node because it is a surgical procedure. However, if only a fine needle aspirate of a distant lymph node is done, code this field to 0 [None].
Fine needle aspirates of regional lymph nodes are the only FNA biopsies to be coded in a surgery field (Scope of Regional Lymph Node Surgery field). In addition, FNA biopsies of regional nodes are also included in the EOD-Number of Positive Regional and Examined Lymph Nodes fields.
EOD-Regional Lymph Nodes--Breast: Are subpectoral nodes the same as interpectoral nodes and, therefore, regional for breast primaries?
Subpectoral lymph nodes are regional nodes for breast primaries. Subpectoral is the term generally used to describe the placement of a prosthesis during reconstruction (under/behind the pectoralis major muscle). That is the same location for interpectoral, or Rotter's, nodes.
Histology (Pre-2007)--Breast: What code is used to represent the histology "infiltrating lobular carcinoma, solid and classical subtypes"?
For tumors diagnosed prior to 2007:
Code the Histology field to 8520 [Lobular 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.
Histology (Pre-2007)--Lung: Should "moderately differentiated adenocarcinoma of scar type, intermixed with bronchiolo-alveolar carcinoma" be coded to 8250 [bronchiolo-alveolar adenocarcinoma, NOS] or 8255 [adenocarcinoma of mixed subtypes]?
For tumors diagnosed prior to 2007:
Code Histology to 8255 [Adenocarcinoma with mixed subtypes]. This is a single tumor containing both a scar carcinoma and a bronchiolo-alveolar carcinoma--use 8255. The synonym for 8255 is adenocarcinoma combined with other types of carcinoma (not just subtypes).
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.
Histology (Pre-2007)/Terminology: Are "pattern", "architecture", and "architectural pattern" terms that indicate a majority of tumor?
For tumors diagnosed 2004 to 2006:
The terminology "Architectural pattern: ____________," when used in the final pathology diagnosis, indicates a subtype that can be coded. This type of format in a pathology report is based on a College of American Pathologists (CAP) protocol. Disregard "pattern" and "architecture" when not used in accordance with the CAP protocol. See www.cap.org for cancer protocols.
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.
Solid Tumor Rules (2021)/Laterality--Melanoma: Will the table called Site for Which Laterality Code Must Be Recorded be updated in the 2021 SEER Program Coding and Staging Manual as C444 is not included? The 2021 Cutaneous Melanoma Solid Tumor Rules say that C444 requires laterality; it says (new) beside it on the new Solid Tumor Rules for 2021.
The laterality table in the 2021 SEER manual will not be updated. Please follow the 2021 Cutaneous Melanoma Solid Tumor Rules and assign a laterality for C444.
Multiple Primaries/Histology--Mycosis Fungoides/Cutaneous T cell Lymphoma: Physicians often use the terms cutaneous T cell lymphoma (CTCL) and mycosis fungoides interchangeably and yet the SEER Single versus Subsequent Primaries of Lymphatic and Hematopoietic Diseases table indicates that these 2 diagnoses represent separate primaries. Do these cases represent one primary? If so, what histologic type should they be coded to?
For cases diagnosed prior to 1/1/2010:The patient does not have two different malignancies. Code the Histology field to 9700/3 [mycosis fungoides], the specific type of cutaneous T cell lymphoma. Mycosis fungoides is one of several types of cutaneous T cell lymphoma. Physicians often refer to mycosis fungoides by the "umbrella term" cutaneous T cell lymphoma.
The table indicates that the broad category of "T/NK-cell NHL" (which includes CTCL) and mycosis fungoides are presumably separate primaries because several entities are included in that broad category. In the specific case cited above, one entity (CTCL) within the broad category (T/NK-cell NHL) and mycosis fungoides are not separate primaries.
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.
Histology (Pre-2007)--Breast: What code is used to represent the histology of "invasive ductal carcinoma and in situ ductal carcinoma, cribriform type"?
For tumors diagnosed prior to 2007:
Code the Histology field to 8500/3 [ductal carcinoma] unless the combination is ductal and lobular.
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.
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