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20170041 | MP/H Rules/Histology--Thyroid: How should histology be coded for a thyroidectomy final diagnosis of papillary thyroid carcinoma, favor cribriform-morula variant? See Discussion. |
This specific histology (cribriform-morula variant of papillary thyroid carcinoma) is not found in the ICD-O and is not mentioned in the 2007 MP/H Manual. However, per a web search it appears that this is a distinct type of papillary thyroid carcinoma (http://erc.endocrinology-journals.org/content/24/4/R109.full). Example: Right lobectomy shows thyroid epithelial neoplasm, pending consultation. Consultation: Thyroid gland, right lobe: papillary thyroid carcinoma, favor cribriform-morula variant. Consultation Comment: IHC stains argue against medullary carcinoma. The histologic features of growth patterns and cytologic atypia (with rare grooves and pseudoinclusions) and the immunohistochemical profile support a diagnosis of papillary thyroid carcinoma, favoring the cribriform-morula variant. It is important to note that a significant number of patients with this variant of papillary thyroid carcinoma have been associated with familial adenomatous polyposis syndrome. |
Assign code 8260/3 for papillary carcinoma of thyroid. Cribriform-morula variant is not listed in ICD-O-3 for papillary carcinoma. Multiple Primaries/Histology Rule H14 states to code papillary carcinoma of the thyroid to papillary adenocarcinoma, NOS (8260). |
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20170009 | MP/H Rules/Multiple primaries--Lung: How many primaries should be accessioned if patient has a LUL lung biopsy with squamous cell carcinoma and subsequently a station 4L node biopsy with small cell carcinoma? See Discussion. |
Patient has only a LUL tumor on imaging. The tumor board initially states, possibly a mixed tumor, likely IIIA SCC and/or IIIA or B small cell. Later, the physician refers to it as "Stage III lung cancer, mixed histology with small cell in the lymph node and squamous cell in the LUL mass." Patient has no further workup and has declined therapy. |
Accession the case as a single lung primary since there is only a mixed tumor noted by the tumor board. Code the histology as 8045, combination/mixed small cell carcinoma and squamous cell carcinoma, per Table 1 of the Multiple Primaries/Histology Rules. |
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20170061 | MP/H Rules/Histology--Thyroid: What is the correct histology when final diagnosis of a thyroidectomy includes the descriptor "papillary and follicular architecture?" See Discussion. |
Total thyroidectomy Final Diagnosis: Papillary carcinoma, classical type, with papillary and follicular architecture. The 2007 MP/H rules state that the term architecture is reserved for coding subtype of in situ primaries only. However, SINQ 20130165 appears to indicate this should be coded for invasive thyroid subtypes as well. Can you confirm the addition of the term architecture for determining an invasive histologic subtype for thyroid? |
Assign code 8260/3, papillary carcinoma per Multiple Primaries/Histology Rule H14. Architecture is reserved for coding subtype of in situ primaries only. SINQ 20130165 is not intended to indicate this should be coded for invasive thyroid subtypes. |
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20170079 | Surgery of Primary Site--Corpus Uteri: Is surgery for a uterine corpus primary described as total abdominal hysterectomy-bilateral salpingo-oophorectomy (TAH-BSO) with specimens including uterine corpus, cervix, bilateral ovaries and fallopian tubes, and bilateral parametria coded as a modified radical hysterectomy? It would be very helpful if an explanation of the difference between a total hysterectomy, modified radical hysterectomy, and radical hysterectomy can be included. See Discussion. |
Surgery text indicates TAH-BSO with bilateral pelvic and paraaortic lymph node dissection. The pathology report indicates the specimen includes: Uterine corpus, cervix, bilateral ovaries and fallopian tubes, bilateral parametria. The Gross Description also indicates: Representative sections submitted in 16 cassettes as follows: A1: Anterior cervix A2: Posterior cervix A3: Full thickness anterior lower uterine segment A4: Full thickness posterior lower uterine segment A5: Tumor A6-A7: Full thickness anterior endomyometrium to include tumor A8-A10: Full thickness posterior endomyometrium with tumor A11: Representative sections of right fallopian tube and fimbria A12: Representative sections of right ovary A13: Representative sections of left fallopian tube and fimbria A14: Representative sections of left ovary A15: Right parametrial tissue A16: Left parametrial tissue A17-23: Remainder of cervix. |
Assign code 50: total hysterectomy with removal of tube(s) and/or ovary(ies). Removes both the corpus and cervix uteri. It may also include a portion of the vaginal cuff. Both the radical and modified radical hysterectomy (code 60) include removal of part of the vagina, not mentioned in the pathology or surgery text. The SEER Glossary for Registrars defines the procedures as follows. Total hysterectomy: Surgery to remove the entire uterus, including the cervix Radical hysterectomy: Surgery to remove the uterus, cervix and part of the vagina. The ovaries, fallopian tubes and nearby lymph nodes may also be removed. Modified radical hysterectomy: Surgery to remove the uterus, cervix, upper part of the vagina, and nearby ligaments and tissues. Nearby lymph nodes may also be removed. In this type of surgery, not as many tissues and/or organs are removed as in a radical hysterectomy. |
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20170026 | Multiple Primaries/Histology Rules/Multiple primaries--Kidney, renal pelvis: Are tumors diagnosed more than three years apart multiple primaries according to Rule M7 in a case with metastasis? See Discussion. |
5/27/02 Transurethral resection of bladder tumor (TURBT)--papillary transitional cell carcinoma, +lamina propria, no muscle invasion. All urine cytologies in 2011 and 2012 (only follow up received) show no malignancy. 3/11/15 Lung fine needle aspirate--poorly differentiated carcinoma consistent with urothelial carcinoma. 4/30/15 Renal pelvis biopsy--low grade papillary urothelial carcinoma, no lamina propria invasion, no muscularis propria invasion. |
Rule M7 applies. Abstract the bladder diagnosis and the renal pelvis diagnosis as separate primaries. The lung diagnosis is metastatic. The MP/H rules do not apply to metastatic tumors. |
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20170033 | Grade--Appendix: What is the code and term to use for the grade/differentiation field for well differentiated, Grade 2 neuroendocrine tumor (NET)? See Discussion. |
Diagnosis: Fragmented appendix with: Goblet cell carcinoid tumor (typical goblet cell carcinoid): WELL DIFFERENTIATED neuroendocrine tumor; INTERMEDIATE GRADE (GRADE 2 NET). Size 3.5 cm according to surgical pathology report. Tumor infiltrates through appendiceal wall to subserosa. Tumor is present in what appears to be the wall of the appendix near the perforation site or in hemorrhagic tissue on the surface of the appendix. MAXIMUM MITOTIC RATE IS TWO (2) FIGURES PER 10 HIGH POWER fields (2/10hpf). (4/10 hpf according to report). WD indicates a 3- grade system (code 1 for WD) Intermediate grade indicates a 3- grade system (code grade 3 for intermediate grade), Grade 2 indicates a 2- grade system (code 2 for grade 2). Please advise. |
See SINQ 20160023 for NET grade coding instructions. Coding grade for NETs is slightly different from coding grade for other solid tumors. Since this diagnosis includes "Well differentiated" and "Grade 2," assign grade code 2, the higher grade. According to our expert pathologist consultant, "intermediate" fits best with grade 2. |
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20170006 | Diagnostic confirmation--Heme & Lymphoid Neoplasms (Lymphoma): To code "3" in Diagnostic Confirmation, does the genetic testing need to confirm a specific histology or is it enough that is simply rules out others? See Discussion. |
For example, pathology states: Right axillary lymph node, excision: Diffuse large B-cell lymphoma (DLBCL) (see note). COMMENT: FISH studies were performed that were negative for BCL-6, c-Myc/IgH, CCND1/IgH and IgH/BCl-2 gene rearrangement, ruling out the most common forms of double-hit lymphoma. Flow cytometry studies demonstrated positivity for CD45, CD20, HLA-Dr, CD19, CD11c, CD22, CD30, CD38, CD79b, and FMC7. Low positivity was seen for CD5. No reactivity was seen for CD10, CD23, CD25, CD103 or CD123. |
Both histologic plus immunophenotyping or genetic testing should be positive to assign code 3 for Diagnostic Confirmation. The Hematopoietic and Lymphoid Neoplasm Coding Manual Diagnostic Confirmation instructions state, assign 3 for Cases positive for neoplasm being abstracted (including acceptable ambiguous terminology and provisional diagnosis) AND Immunophenotyping, genetic testing, or JAK2 is listed in the Definitive Diagnosis in the Heme DB AND a.) Confirms the neoplasm OR b.) Identifies a more specific histology (not preceded by ambiguous terminology). Because the patient was diagnosed with DLBCL by histology, and flow cytometry was positive for CD antigens (immunophenotyping) 20, 22, and 30 for DLBCL, code 3 is appropriate. |
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20170022 | MP/H Rules/Histology--Brain and CNS: What is the code for an embryonal tumor with multilayered rosettes. WHO shows the code as 9478/3, but this code is not available for use in the United States. |
Assign ICD-O-3 code 9392/3 until code 9478/3 is implemented in 2018. Per our expert neuropathologist, embryonal tumor with multilayered rosettes was previously called ependymoblastoma. |
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20170008 | MP/H Rules/Histology--Colon: Is the code for invasive adenocarcinoma in a serrated adenoma 8213/3? The NAACCR Guidelines for ICD-O-3 Update Implementation, effective 1/1/14, provides new terms including 8213/0 for sessile serrated adenoma/sessile serrated polyp and 8213/3 for serrated adenocarcinoma. This would cause Site/Type and Histology overrides to be set. Coding 8210/3 would allow the case to be reported without overrides. See Discussion. |
Pathology report 1/13/15, Histology - Transverse colon resection pathology = Invasive moderately differentiated adenocarcinoma. The invasive adenocarcinoma arises in a sessile serrated adenoma. |
Assign 8213/3 to invasive adenocarcinoma arising in a sessile serrated adenoma. The instruction in SINQ 20120089 is still valid. The 2014 ICD-O-3 Update does not change this SINQ answer. |
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20170054 | MP/H Rules/Multiple primaries--Brain and CNS: How many primaries should be abstracted for a patient with a 2011 diagnosis of oligodendroglioma followed by biopsy of tumor which demonstrated progression in 2016 with pathology report Final Diagnosis indicating WHO grade III anaplastic astrocytoma? See Discussion. |
The clinical documentation clearly identifies residual tumor after the 2011 craniotomy. Scans demonstrated slow enlargement of the tumor over the years, which resulted in a repeat craniotomy. The pathologist noted in the diagnosis comment section of the pathology report that Is this a single primary per MP/H Rule M3 (A single tumor is always a single primary), or an additional brain malignancy per MP/H Rule M8 (Tumors with ICD-O-3 histology codes on different branches in Chart 1 or Chart 2 are multiple primaries)? |
Based on the information provided, this is a single primary. The 2011 tumor was not completely removed and progressed over the years. MP/H Rule M3 for malignant brain cancer applies. Do not change the original histology code. Use text fields to document the later histologic type of anaplastic astrocytoma, WHO grade III. |
2017 |
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