| Report | Question ID | Question | Discussion | Answer | Year |
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20160025 | MP/H Rules/Histology: What is the correct histology code for a NUT midline carcinoma? |
Code histology to 8010/3.
NUT carcinoma is identified by the NUTM1 gene rearrangement.
NUT midline carcinomas (NMC) are lethal and morphologically indistinguishable from other poorly diff carcinomas. They are epithelial tumors which can range from undifferentiated carcinomas to carcinomas with prominent squamous differentiation.
A new proposed ICD-O-3 code has been suggested for NUT tumors but it is not yet approved for implementation. Do not use the new code until it is approved for use in the United States.
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2016 | |
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20160079 | First course treatment/Chemotherapy: Is metronomic chemotherapy coded as chemotherapy? |
Code metronomic chemotherapy as chemotherapy. Metronomic chemotherapy, also referred to as low-dose metronomic (LDM) chemotherapy, is an emerging cancer treatment approach which administers relatively low doses of traditional chemotherapy drugs over a long period of time and without ‘breaks’ in treatment. By using lower doses this method of treatment minimizes the side effects of traditional chemotherapy. |
2016 | |
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20160021 | Primary Site--Stomach: How do I code the primary site when the operative report and pathology report state that the tumor site is incisura of the stomach? |
Assign C163. Incisura, incisura angularis, gastric angular notch, angular incisure of stomach all refer to the sharp angular depression in the lesser curvature of the stomach at the junction of the body with the pyloric canal. See Gastric angular notch in #12 on page 76 in the SEER manual, http://seer.cancer.gov/manuals/2015/SPCSM_2015_maindoc.pdf. See also the SEER training website, #12 on the illustration corresponds to the angular notch, http://training.seer.cancer.gov/ugi/anatomy/stomach.html. We will correct the key for this illustration. |
2016 | |
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20160076 | MP/H Rules/Histology--Brain and CNS: What is the histology code for a tumor originating in the cerebellum and extending into the fourth venrticle described as a glioblastoma with primitive neuroectodermal tumor component (WHO Grade IV)? |
The WHO Classification of CNS tumours lists glioblastoma with primitive neuroectodermal tumor component as a subtype of glioblastoma and assigns 9440/3. Also referred to as glioblastoma with a primitive neuronal component. |
2016 | |
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20160035 | Reportability/Histology--Pituitary Gland: How are Rathke cleft cyst and Rathke pouch tumor distinguished and are they both reportable? |
Rathke cleft cyst is not reportable. Cysts are not neoplastic. However, Rathke pouch tumor (C751, 9350/1) is a reportable neoplasm for cases diagnosed 2004 and later. The Rathke pouch is coded to the pituitary gland. Benign and borderline pituitary tumors have been reportable since 2004. |
2016 | |
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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. |
2017 |
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20170057 | Grade: If the biopsy site is a higher grade, is the grade of the biopsy used over the grade of the surgical resection? See Discussion. |
When coding tumor grade, our pathologists have told us to code grade based on the specimen from the most definitive surgery or with the most amount of tissue, and that coding grade from the biopsy would not be appropriate even if it is a higher grade than from the surgical resection. Coding of solid tumors Instruction 5 states: If there is more than one grade, code the highest grade within the applicable system. Code the highest grade even if it is only a focus. Code grade in the following priority order using the first applicable system. |
For cases diagnosed prior to 2018: Use the Grade Coding Instructions to code grade. The instructions are intended to standardize coding of grade across the U.S. and to eliminate differences in opinion between pathologists. Standardized coding ensures that data can be combined and used for statistical analysis. You may code grade based on the biopsy when following the grade coding instructions. |
2017 |
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20170028 | MP/H Rules/Histology--Kidney: How should histology be coded for a clear cell renal cell carcinoma when the CAP protocol indicates sarcomatoid features are present? See Discussion. |
Sarcomotoid (8318) is listed as a specific renal cell subtype in the MP/H manual, but it is not listed as a renal cell subtype in the most recent WHO blue book for Urinary Organs. We are wondering if sarcomatoid features, as listed in the CAP protocol format in the following example, should be ignored when coding histology? Left kidney, radical nephrectomy: Clear cell renal cell carcinoma, with the following features: Tumor size: 8.5 X 6 cm. Tumor focality: Unifocal. Macroscopic extent of tumor: Tumor limited to kidney. Sarcomatoid features: Present (<20% of tumor shows sarcomatoid features). Histologic grade: G4. Microscopic tumor extension: Tumor limited to kidney. Margins: All margins negative for invasive carcinoma. Lymph-vascular invasion: Not identified. |
Code 8255 (adenocarcinoma with mixed subtypes). The Multiple Primaries/Histology Rule H6 applies as there are two or more specific renal cell carcinoma types, clear cell and sarcomatoid (Spindle cell), as listed in Table 1 of the kidney Terms and definitions. |
2017 |
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20170077 | First Course Treatment: Should the definition in the 2016 SEER Coding Manual be revised for first course of treatment following disease progression for patients who complete the initial first course treatment plan without alteration but had one or more treatment modalities given after disease progression was identified? See Discussion. |
The FORDS Manual (pg. 22) states: The first course of treatment includes all methods of treatment recorded in the treatment plan and administered to the patient before disease progression or recurrence. The instructions in the FORDS Manual and clarification from multiple CAnswer Forum posts indicates the planned first course treatment stops following disease progression, even when the first course treatment plan is not altered or changed. SEER, on the other hand, instructs registrars to do the opposite. The SEER Manual instructs registrars to code all completed treatment given as part of the initial first course treatment plan, even after disease progression, provided the treatment plan is not changed or altered. (See 2016 SEER Manual, Section VII First Course of Therapy, Treatment Timing, Rule 1 and Example 1.) For consistency in data collection, shouldnt the standard setters use the same guidelines to define first course treatment? Given that the majority of cases are reported to SEER by registrars in CoC facilities, who may not be abstracting treatment modalities that occur after progression, the SEER expectation is likely not able to be performed consistently. Wont this difference in standard setter data collection expectations negatively impact the treatment data reflected on our files? |
The example cited above will not be included in the 2018 edition of the SEER manual. Removing this example will improve the consistency in recording first course of treatment for cases diagnosed 2018 and later. |
2017 |
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20170075 | MP/H Rules/Behavior--Breast: How many primaries are to be abstracted for a patient with a history of left breast ductal carcinoma in situ (DCIS) diagnosed in 2014 and bone lesions showing metastatic carcinoma consistent with a breast primary in 2017? See Discussion. |
Patient was diagnosed with DCIS of the left breast in June 2014. The patient had a simple mastectomy with 2 axillary lymph nodes removed. The final diagnosis was intermediate to high grade ductal carcinoma in situ, predominantly micropapillary type, forming a 1.4 cm mass. No invasive carcinoma identified. Margins negative. In April 2017, the patient was found to have parietoccipital bone lesions, which were resected. The resulting diagnosis was metastatic carcinoma, morphologically consistent with breast primary " See Comment: The previous breast lesion is not available for review at the time of signout. However, the tumor is morphologically compatible with a breast primary. SINQ 20110111 would not make this is new primary. However, it seems that rule M8 might apply. An invasive tumor following an in situ tumor more than 60 days after diagnosis is a multiple primary. See Note 2: Abstract as multiple primaries even if the medical record/physician states it is recurrence or progression of disease. |
Assuming there were no other breast or any other tumors for this patient, change the behavior code to /3 on the original abstract for the 2014 breast primary. Similar to SINQ 20110111, there was likely a focus of invasion present in the original tumor that was not identified by the pathologist. The behavior code on the original abstract must be changed from a /2 to a /3 and the stage must be changed from in situ to localized. The MP/H rules do not apply to metastases. Therefore, rule M8 cannot be used. |
2017 |
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