Collaborative Staging--Hematopoietic, NOS: Which Collaborative Staging schema is used for a connective, subcutaneous and soft tissue primary of the pelvis [C495] with the morphology of Langerhans cell sarcoma [9756/39]? See Discussion.
On page C-411 of the SEER manual for the connective, subcutaneous, and other soft tissues schema it lists exceptions for certain morphologies and the above is not listed as an exception. On the Hematopoietic scheme it lists the above morphology.
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 hematopoietic schema on page C-709 of the 2004 SEER manual. The histologically defined schemas have priority over the site schemas when both apply. See page 115 of the 2004 SEER manual.
The morphology codes listed on page C-411 pertain to the SEER Site Specific Guidelines.
CS Tumor Size/CS Extension--Brain and CNS: How are these fields coded for a glioblastoma multiforme occurring in a 3.5 cm tumor in the parietal lobe and a 3.0 cm tumor in the occipital lobe?
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.
CS Extension code is 10 [confined to cerebral hemisphere]. Record the size of the largest lesion in CS Tumor Size. Both the occipital and parietal lobes are supratentorial and confined to the cerebral hemisphere with no mention of crossing midline or involvement of ventricles.
Histology (Pre-2007)--Sarcoma: How is "acral myxoinflammatory fibroblastic sarcoma" coded?
For tumors diagnosed prior to 2007:
The ICD-O-3 histology code is 8811/3 [Fibromyxosarcoma] according to the WHO Classification of Tumours of Soft Tissue and Bone. WHO defines myxoinflammatory fibroblastic sarcoma (MIFS) as "a unique low grade sarcoma with myxoid stroma, inflammatory infiltrate and virocyte-like cells that predominantly involves the hands and feet."
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)--Ovary: What codes are used to represent "mixed papillary serous and clear cell carcinoma" and "papillary serous carcinoma with focal clear cell features" of the ovary?
For tumors diagnosed prior to 2007:
Assign code 8323 [Mixed cell adenocarcinoma] to "mixed papillary serous and clear cell carcinoma." This is histology coding rule 3 in the 2004 SEER manual under single tumor (page 86). There is no other code for this mixture.
Example 1: 8323
Example 2: 8461 (clear cell is not coded according to Rule 6, page 87, because it is not the majority of the tumor).
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.
CS Tumor Size--Breast: How is this field coded for a 1.5 cm clinically palpable tumor that appeared to be a cyst with a papilloma when the partial mastectomy Path Micro stated the lesion was an "intraductal papilloma with focal noninvasive papillary carcinoma"? See Discussion.
Should the size be coded to 999 [unknown] because the noninvasive papillary carcinoma is described only as "focal" and is not measured and it is not known how much of the tumor is benign and how much is in situ. Or would the size be coded to the size of the palpable mass, 1.5 cm?
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 CS tumor size as 999 [unknown]. Size of the focal noninvasive papillary carcinoma is not stated.
Reportability/Behavior--Thymus: Are "lymphocyte predominant thymoma with microscopic capsule invasion" and "Polygonal epithelial cell thymoma with invasion of the lung and pericardial fat" reportable?
Please see SINQ 20110038 for the most recent information on reporting thymoma.
Histology (Pre-2007)--Melanoma: How is histology coded if the final diagnosis is "melanoma" and only in the comment section of the pathology report is there an indication of "Type: Lentigo Maligna. Cell Type: Small Cell"?
For tumors diagnosed prior to 2007:
Code the histology as 8742 [lentigo maligna melanoma]. Code the specific histologic type, even if stated only in the comment section.
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.
CS Extension--Prostate: Can the EOD Manual clarifications regarding apparent and inapparent tumors be used to determine CS clinical extension for prostate primaries?
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 use the EOD information to determine apparent and inapparent when coding Collaborative Stage for tumors diagnosed 1/1/2004 or later.
The August 2007 CoC Flash stated that "After consultation with the AJCC curators for genitourinary disease, the CS Steering Committee has determined that the SEER list of terms for apparent and inapparent in the SEER Extent of Disease Manual is NOT to be used for interpreting reports for Collaborative Staging. While it was a convenient tool for registrars, the curators are of the opinion that the use of the list will lead to misinterpretation of reports. Rather, the curators recommend that registrars rely on a direct physician statement of apparent or inapparent disease for Collaborative Staging."
August 2007 CoC Flash: http://www.facs.org/cancer/cocflash/august07.pdf, Coding Prostate Cancer: A Message from the Collaborative Staging Steering Committee.
CS Lymph Nodes--Breast: Is it better to code to 26 [Stated as N1, NOS] or 28 [Stated as N2, NOS] instead of 60 [Axillary/regional lymph nodes, NOS; Lymph nodes, NOS] when the only information in the medical record is the TNM N1 or N2 physician stage?
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. When the only indication of lymph node involvement is the physician's N category from TNM, code the numerically lowest equivalent CS Lymph Nodes code for that N category.
In the breast schema, CS Lymph Nodes code 26 corresponds to N1, NOS and code 28 corresponds to N2, NOS.
Reportability/Multiple Primaries (Pre-2007)/Histology--Anus: How many primaries exist if an 11/7/03 anal lesion presents with poorly differentiated adenocarcinoma with signet ring features and extensive mucin production and the 1/9/04 wide excision has adenocarcinoma and Paget disease (intraepidermal adenocarcinoma) extends to skin margin?
For tumors diagnosed prior to 2007:
This is a single primary: the adenocarcinoma with the Paget representing intraepithelial extension of the process. Tumor cells can invade from their place in the epithelium into the underlying stroma either at the primary site, or at their extension site (skin).
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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