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20130149 | MP/H Rules/Histology--Testis: What is the histology code for a testis primary with embryonal carcinoma (70%), yolk sac tumor (30%), and a focus of seminoma (<1%)? See Discussion. | The right orchiectomy specimen showed a mixed histology tumor. The retroperitoneal lymph nodes showed teratoma, NOS only. Does the presence of teratoma in the lymph nodes change the histology coding?
The MP/H Rules for Other Sites, Table 2 (Mixed and Combination Codes) does not include the combination of embryonal carcinoma, yolk sac tumor and seminoma. SINQ 20110013 does state the combination of embryonal carcinoma and yolk sac tumor should be coded to histology 9065/3 [germ cell tumor, nonseminomatous]. In this case, is the focus of seminoma comprising <1% included when coding the histology? If the seminoma is included, Table 2 still does not address this combination. |
Code the histology to mixed germ cell tumor [9085/3] per Rule H16; code the appropriate combination/mixed code when there are multiple specific histologies.
According to the WHO Classification of Tumors of the Male Genital Organs, tumors of more than one histologic type (mixed forms) can occur in any combination of various germ cell histologies including embryonal, yolk sac, teratoma, and choriocarcinoma. Mixed teratoma and seminoma is included under histology code 9085/3 [mixed germ cell tumor] in the ICD-O-3. The revised MP/H rules will expand on these mixed testicular histologies.
Priority for coding histology is using the diagnosis from the primary site (when possible) over the histology from a metastatic site. The presence of teratoma, NOS in the retroperitoneal lymph nodes does not change the histology code. |
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20130148 | Reportability--Brain and CNS: Are "spinal" schwannomas reportable if stated to be extradural, vertebral nerve sheath, or of specific vertebrae? See Discussion. | Are any of the following cases reportable?
Example 1: Clinical Diagnosis: Extradural spinal cord tumor compatible with schwannoma. What assumptions should be made about reportability if the tumor is described as being extradural? The extradural spinal cord includes epidural fat surrounding the thecal sac and exiting nerve roots. Does this mean there are not nerve roots in the extradural spinal cord?
Example 2: Final Pathologic Diagnosis: Designated "C3-4 nerve sheath tumor" excision: Morphologic and immunohistochemical findings consistent with cellular schwannoma. When stated to be a "nerve sheath tumor" does that mean peripheral nerve (C47_) involvement or nerve root (C72_) involvement?
Example 3: Final Pathologic Diagnosis: T-8 vertebral tumor resection: Schwannoma with degenerative changes (calcification, cyst formation) - ganglion and nerve are identified. There is no mention clinically or pathologically whether this tumor is "intradural" or "of the nerve root." In the absence of information about whether the location of the tumor is intradural or involving the nerve root, is it assumed that it does involve this part of the spinal cord when a specific vertebrae is removed? |
Extradural schwannomas are not reportable. Neither vertebral nerve sheath nor a location of/on a specific vertebrae confirm the origin as being either extradural or intradural. Do not report a schwannoma if it cannot be determined to be "intradural" or "of the nerve root." | 2013 |
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20130147 | Primary site--Heme & Lymphoid Neoplasms: What the primary site for a diagnosis of Langerhans cell histiocytosis with multifocal multisystem involvement of the skin, chest, CNS and thyroid, but no evidence of involvement on a bone scan? | For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Code the primary site to C809 [unknown].
Langerhans Cell Histiocytosis (LCH) includes three major groups:
When the disease is both multifocal and multisystem, code the primary site to unknown [C809] because there is no way to identify the origin of the neoplasm in this situation.
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. |
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20130146 | Histology--Heme & Lymphoid Neoplasms: What is the histology code for a diagnosis of myeloproliferative neoplasm/myelodysplastic syndrome overlap? | For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Code the histology to 9975/3 [myelodysplastic/myeloproliferative neoplasm, unclassifiable]. Per the Definition section in the Heme DB, this neoplasm has the, "Clinical laboratory and morphological features of myeloproliferative neoplasm but fails to meet the criteria for a specific myeloproliferative neoplasm; or presents with features that overlap two or more MPN neoplasms."
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. |
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20130142 | Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are reported if a 2010 inguinal lymph node biopsy diagnosis of follicular lymphoma, grade 1 is subsequently diagnosed in 2012 with a 50% follicular, grade 3 and 50% diffuse large B-cell via a biopsy of an axillary mass? |
In 2010 a left inguinal lymph node biopsy revealed follicular lymphoma, grade 1. There were no other suspicious lymph nodes in the body. In 2012 a biopsy of a large axillary mass revealed a a 50% follicular, grade 3 and 50% diffuse large B-cell. According to the rules, the transformation to a B-cell is new primary. Is the mixed cell neoplasm a single primary? |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph. There are two reportable primaries for this case -- follicular lymphoma in 2010 and DLBCL in 2012. First determine the histologies needed to to determine the number of primaries to report. We determined the histologies are follicular lymphoma, grade 1 for 2010 and DLBCL for 2012 as follows:
Per the Hematopoietic database, follicular lymphoma (all types are chronic) transforms to DLBCL (acute). Per Rule M 10 instructions, "Abstract as multiple primaries when a neoplasm is as a neoplasm there is a of an neoplasm after the chronic diagnosis." Therefore, abstract the DLBCL as a second primary. 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. |
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20130140 | Reportability/Ambiguous terminology--Heme & Lymphoid Neoplasms: Is a peripheral blood sample with an immunophenotype that is "characteristic of B-cell chronic lymphocytic leukemia" reportable? | For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
This is a reportable diagnosis of chronic lymphocytic leukemia [9823/3]. The physician is using the terms "characteristic of" in the same manner as he/she would use the terms "diagnostic of."
This case fits with the usual diagnosis of CLL. The peripheral blood is diagnostic for leukemias. There was a specific leukemia noted, B-cell chronic lymphocytic leukemia. CLL (B-cell is the phenotype) is usually diagnosed incidentally by a peripheral smear because it is asymptomatic. However, we recommend looking for further work-up, such as a bone marrow biopsy.
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. |
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20130139 | Histology--Heme & Lymphoid Neoplasms: How is the histology coded when the original slides are reviewed at a later date and the revised diagnosis changes the histology? See Discussion. | Diffuse large B-cell lymphoma [9680/3] diagnosed in 5/2010 and treated with chemotherapy. In 11/2012 a bone marrow biopsy revealed small lymphocytic lymphoma (CLL/SLL) [9823/3].
The 2010 slides were reviewed and showed, "a large cell lymphoid proliferation, many of the cells which appear to be prolymphocytes. There are background smaller lymphocytes that are consistent with CLL/SLL. In retrospect, the lymph node most likely represented a prolymphocytic conversion in SLL."
The medical oncologist is calling this a recurrent lymphoma. Should the original 5/2010 diagnosis be changed to 9823/3 [CLL/SLL]? Is this documented in the Heme Manual? |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Change the histology of the original 2010 diagnosis to 9823/3 [chronic lymphocytic leukemia/small lymphocytic lymphoma] based on the review of the 2010 slides. The 2010 diagnosis was revised based on the review of slides and the histology should be changed accordingly. The closest example of this is located in the SEER Manual, Changing Information on the Abstract, instruction 3, example 4.
Histology code 9670/3 [SLL] is obsolete for cases diagnosed 2010 and later. All diagnoses of CLL/SLL, CLL, and SLL are now coded to histology code 9823/3 [CLL/SLL].
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. |
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20130138 | Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a 2010 diagnosis of a preleukemic condition is subsequently diagnosed in 2012 with a specific leukemia that is not listed as a transformation? See Discussion. |
10/02/10 bone marrow biopsy showed myelodysplastic syndrome, unclassified [9989/3]. 6/19/12 bone marrow biopsy showed chronic myelomonocytic leukemia (CMML-2) [9945/3]. CMML-2 is not listed as an acute neoplasm for MDS. Is this the same disease? Per the pre-2010 rules, this would be the same disease. The current Heme DB indicates these are separate primaries. |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph. This case should be accessioned as two primaries, myelodysplastic syndrome (MDS) [9989/3] diagnosed 10/2/10 and chronic myelomonocytic leukemia (CMML-2) [9945/3] diagnosed 6/19/12 per Rule M15. Per Rule M15, use the Multiple Primaries Calculator when rules M1-M14 do not apply. When myelodysplastic syndrome (MDS) became reportable, the rules in effect at that time resulted in MDS often being the only diagnosis reported when both MDS and a leukemia were diagnosed. Statistics for some leukemias were impacted. Now we report both the MDS and the leukemia for greater accuracy. 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. |
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20130137 | Histology--Heme & Lymphoid Neoplasms: How is the histology coded for follicular lymphoma, low grade? See Discussion. | Pathologists seem to be moving away from identifying follicular B-cell lymphomas as grade 1, grade 2, etc. Instead, the term follicular lymphoma, low grade is being used. Should the histology be coded as follicular lymphoma, NOS even though the Heme DB indicates this code is usually used for death certificate cases? | For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Code the histology to 9690/3 [follicular lymphoma, NOS].
Low grade for follicular lymphoma are not listed in the Heme DB or Manual. Because low grade can mean grade 1 or grade 2, default to follicular lymphoma, NOS [9690/3].
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. |
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20130136 | Multiple primaries--Heme & Lymphoid Neoplasms: If a neoplasm is listed under the Transformations section in the Heme DB, is this always a new primary? See Discussion. | Where are the instructions for coding transformations? When a disease is listed under the transformations, the Multiple Primaries Calculator states it is a new primary. Is this a new primary when the physician calls it a transformation?
For example, patient was diagnosed in 2000 with chronic lymphocytic leukemia (CLL). A biopsy of a stomach mass on 4/26/12 was positive for diffuse large B-cell lymphoma. DLBCL is listed under the Transformations To section in the Heme DB for CLL. Is this a new primary because it is a transformation? |
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Transformations do not always indicate a multiple primary is to be reported. Always apply the M Rules to determine the number of primaries. Refer to Rules M8-M13 in the Heme Manual address to determine the number of reportable primaries when chronic and acute neoplasms (transformations) are indicated on a case. Do not use the MP Calculator to determine the number of primaries unless the M Rules direct you to use it.
This case should be accessioned as two primaries, chronic lymphocytic leukemia [9823/3] diagnosed in 2000, and diffuse large B-cell lymphoma [9680/3] diagnosed on 04/26/2012 per Rule M10. Abstract a new primary when a neoplasm is originally diagnosed as a chronic (less aggressive) neoplasm (CLL) and there is a second diagnosis of an acute neoplasm (DLBCL) more than 21 days later.
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. |
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