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For tumors diagnosed prior to 2007:

Code the histology using the final diagnosis on the pathology report of the procedure that resected the majority of the primary tumor. In this case, the mastectomy removed more of the tumor than the needle biopsy. The final diagnosis from the mastectomy is infiltrating lobular carcinoma. Code histology to 8520/3 [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.

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.

Yes, assign code 10 [Tumor confined to one lung] for a mass in one lobe when none of the descriptions in codes 11 to 80 are documented.

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.

Do not code spleen involvement when the only evidence is an enlarged spleen.

When imaging is the only diagnostic tool (no biopsy or splenectomy), spleen involvement is based on the presence of nodules and not on enlargement. Splenic enlargement alone (by physical exam or imaging) is insufficient to support involvement of spleen.

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.For cases diagnosed in 2007 and forward, follow the instructions in the 2007 SEER manual and the CS manual.

For tumors diagnosed prior to 2007:

Code histology to 8255 [Adenocarcinoma with mixed subtypes]. ICD-O-3 does not have a code specific to this combination histology. 8255 is the best code available.

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.

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.

Extension code 40 is for extension from the tonsil to the back (lower) part of the soft palate, or soft palate, NOS. Code 42 is for extension to the front (higher, nasopharyngeal surface) part of the soft palate.

Inferior soft palate is the back (lower) part of the soft palate (C051). Superior soft palate is the front, (nasopharyngeal surface) of the soft palate (C113).

Assign CS extension code 40 to the case above.

For tumors diagnosed prior to 2007:

There are two primaries in this example:

1. Invasive lobular carcinoma [8520/3]

2. In situ Paget disease of nipple [8540/2].

There is no combination code for lobular carcinoma and Paget disease.

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.

Code the behavior as 2 and over-ride the edit. The edit is there to flag unusual combinations. Once you have verified that the behavior is coded correctly, over-ride the edit.

The surgeon stage of T2 is based on size of tumor, the TIS is based on behavior. Code according to pathologically confirmed TIS.

For cases diagnosed prior to 1/1/2010:

This is one primary. Code as 9699 [Marginal zone B-cell lymphoma, NOS].

The first biopsy was not conclusive. The biopsy one week later was more definitive. The reports are describing a difference between specimens, not a difference in disease.

According to the WHO classification, extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is an extranodal lymphoma with B-cells, cells resembling monocytoid cells, small lymphocytes and scattered immunoblast and centroblast-like cells.

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.

Yes, "atypical fibroxanthoma (superficial malignant fibrous histiocytoma)" is reportable. The information in parentheses provides more detail and confirms a reportable malignancy.