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Do not report the case to SEER if it does not satisfy the criteria for reportability. According to the current reportability criteria, malignant GIST (8936/3) is reportable to SEER. GIST coded to 8936/0 or 8936/1 is not reportable. If your pathologist will not indicate "malignant" or "benign," code 8936/1 applies according to ICD-O-3 and, therefore, these are not reportable to SEER.

The histology code for basal cell carcinoma with skin appendage differentiation is 8098/3. Basal cell carcinomas (8090-8110) are not reportable to SEER. Skin appendage tumors are not reportable to SEER unless stated to be carcinoma or stated to be malignant.

According to our pathologist consultant, basal cell carcinoma with focal skin appendage differentiation is basal cell carcinoma which exhibits adnexal (appendage) features, but it is still basal cell carcinoma.

The case example above is not reportable to SEER.

If the inflammatory myofibroblastic tumor is primary in one of the sites specified below and diagnosed 1/1/2004 or later, it is reportable.

Reportable brain and CNS tumors are any benign and borderline primary intracranial and CNS tumors with a behavior code of /0 or /1 in ICD-O-3 diagnosed 1/1/2004 and later, of the following sites:

• Cerebral meninges C700
• Spinal meninges C701
• Meninges, NOS C709
• Cerebrum C710
• Frontal lobe C711
• Temporal lobe C712
• Parietal lobe C713
• Occipital lobe C714
• Ventricle, NOS C715
• Cerebellum, NOS C716
• Brain stem C717
• Overlapping lesion of brain C718
• Brain, NOS C719
• Spinal cord C720
• Cauda equine C721
• Olfactory nerve C722
• Optic nerve C723
• Acoustic nerve C724
• Cranial nerve, NOS C725
• Overlapping lesion of brain and central nervous system C728
• Nervous system, NOS C729
• Pituitary gland C751
• Craniopharyngeal duct C752
• Pineal gland C753

For cases diagnosed 2007 or later:

Use the 2007 MP/H rules for urinary sites to assess diagnoses made in 2007-2014. Use the multiple tumors module to compare a diagnosis in 2007-2014 to an earlier diagnosis.

For the example above, start by comparing the left renal pelvis diagnosis in 8/07 to the earlier left ureter primary diagnosed 5/05. Start with rule M3. Stop at rule M8. The 8/07 renal pelvis diagnosis is not a new primary. Next, compare the 3/08 bladder tumor to the earlier left ureter primary diagnosed 5/05. Start with rule M3. Stop at rule M5. The 3/08 bladder tumor is a new primary because it is an invasive diagnosis following an in situ diagnosis. Use only the more recent of the two earlier urinary diagnoses for comparison. Do not compare the 2007 and later diagnoses to the 11/89 in situ bladder primary in this case.

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."Matted" is not a synonym for "Fixed" in the CS schema for Head and Neck. "Matted" is not indicative of extracapsular extension for the Head and Neck schema.

In this case, neither the chemoembolization nor the liver transplant is part of the first course of therapy. The documented treatment plan was changed after disease progression. Chemoembolization was not part of the original treatment plan. First course therapy ends at this point.

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.Pericolonic lymph nodes are "regional" lymph nodes for an ovarian primary. If you do not have enough information to assign codes 12-30, assign code 50 [Regional lymph nodes, NOS].

For cases diagnosed prior to 1/1/2010, 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.

Assign CS extension code 80 [Systemic disease] for extramedullary plasmacytoma involving more than one site. Use code 80 when extramedullary plasmacytoma is NOT single, solitary, unifocal, isolated, mono-ostotic or localized. Code 80 can also be used when the bone marrow is involved but the plasma cells are <10%.

Do not apply EOD instructions to CS.

For cases diagnosed 1/1/10 and later, 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 cases diagnosed 2007 or later, Rule M7 pertains to renal pelvis, ureter, bladder and other urinary sites as defined by the topography codes listed in the header of these rules.

An invasive urothelial bladder tumor followed more than three years later by an in situ TCC of the ureter are reported separate primaries. Rule M8 applies when the tumors in these sites are diagnosed within three years of each other.