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There are four invasive tumors in the right lung:

Large cell undifferentiated carcinoma in the right lower lobe (8012/3, C343);

Adenocarcinoma, acinar-predominant in the right lower lobe (8551/3, C343) that was 0.7 cm in size and limited to the lung;

Mucinous adenocarcinoma in the right upper lobe (8253/3, C341) that was 0.9 cm and limited to the lung;

Adenocarcinoma, NOS also in the right upper lobe (8140/3, C341) that was 1 cm and limited to the lung.

The Lung M Rules confirm the large cell undifferentiated carcinoma is a separate primary from the three adenocarcinoma tumors (Rule M8). The acinar adenocarcinoma and mucinous adenocarcinoma tumors are separate primaries (Rule M6). The adenocarcinoma, NOS tumor is the same primary as both the acinar and mucinous are adenocarcinomas (Rule M7).

How is Primary Site coded for both the acinar and mucinous adenocarcinomas if they represent multiple tumors reported as a single primary (when compared to the adenocarcinoma, NOS tumor)?

Should the adenocarcinoma, NOS tumor also be included when coding EOD Primary Tumor for both the right lower lobe acinar adenocarcinoma and right upper lobe mucinous adenocarcinoma primaries? Further follow-up with the physician is not possible.

Patient had a vulvar biopsy with final diagnosis of Extramammary Paget neoplasm (intraepithelial glandular neoplasm). No invasion identified. We are unable to contact the pathologist or physician for clarification.

Although this terminology is not listed in the ICD-O-3, web search results refer to this as a possible synonym for Paget disease with associated VIN III, which is reportable.

Path report reads: 7/15/2019 A. Endometrium, curettings: Serous carcinoma, high grade. B. Endometrial polyp, curettings: Serous carcinoma, high grade.

If coded to 8461/3, according to AJCC, this would not be an ideal code (since it is outdated). Also, endometrium is not included in the suggested site codes for 8461/3 according to the 8/22/2018 ICD-O-3 update.

Per SEER 20140003, an omentectomy is not recorded under Surgery of Other Site when performed with a hysterectomy for an endometrial primary. Is this still correct? CoC appears to have different guidelines stating in a forum that an omentectomy is coded in data item Surgical Procedure to Other Site. I would like to confirm SEER guidelines. Is this one of those unique situations that SEER and STORE differ? Our state follows SEER guidelines and would like to communicate the appropriate rules to our facilities.

The patient underwent a partial mastectomy and sentinel lymph node biopsy, followed by an axillary lymph node dissection for the first right breast primary in 2011. The separate 2020 right breast primary was treated with a total mastectomy and removal of one involved axillary lymph node. The operative report only refers to this as a non-sentinel lymph node, with no mention of other axillary findings.

Cumulatively, this patient has undergone a modified radical mastectomy since there were likely no remaining axillary lymph nodes. If the Surgery of Primary Site data item is cumulative, does the order of surgeries matter?

It is unclear whether this question should be directed to SINQ (for coding in a SEER registry) or to CAnswer Forum because both have addressed similar surgery related questions in the past and and there is no guidance regarding this specific situation.

7/8/16 Urinary bladder, biopsy: Non-invasive low grade papillary urothelial carcinoma. Muscularis propria (detrusor muscle) is not identified.

9/2/16 Urinary bladder, bladder tumor, transurethral resection: High grade papillary urothelial carcinoma. No definite invasion identified. Muscularis propria (detrusor muscle) is identified and not involved by tumor.

1/7/17 A\S\Bladder: Noninvasive low grade papillary urothelial carcinoma. Granulomatous cystitis, consistent with BCG (Bacillus Calmette-Guerin) treatment. Lamina propria is not involved with tumor. Detrusor muscle is not identified.

4/4/17 Dome: Papillary urothelial carcinoma, low grade. No evidence of invasion. Muscularis propria is not present.

Patient is clearly followed for at least a year but no further information until 19 months later, 11/14/18, when biopsy of lung indicates metastatic disease.

11/14/18 Lung, right lower lobe, mass, biopsy: Metastatic urothelial carcinoma. Immunohistochemical analysis results (CK7 positive, CK20 focally positive, P63 positive, GATA3 positive, TTF1 negative and NAPSIN-A negative) support the diagnosis

The bone marrow biopsy proved bone marrow with blasts comprising 15-19%. Neither the pathologist nor the physician specifically diagnosed this as AML, calling this only high risk disease or early evolving AML prior to starting the patient on Vidaza.

No further information can be obtained from the pathologist or the physician for this case. Should this early evolving AML be accessioned as an additional primary per Rule M10, or is this the same MDS that is now high risk as the blast count is up to 19%, but has not yet reached the threshold of 20% blasts usually required for AML per the Hematopoietic and Lymphoid Neoplasm Database?

The radiologist noted the mass was most compatible with a chondroid lesion, which is not reportable on its own, but can the subsequent term be used to accession this as reportable if only one malignant etiology is provided by the radiologist? Or does the statement imply that this is only one of several possible etiologies?

Bone marrow, right iliac crest (aspirate smear, touch preparation, clot section and core biopsy): Hypercellular marrow (40-50%) with plasma cell neoplasm (see Comment): " No evidence of metastatic carcinoma. " Adequate iron storage.

Comment: CBC data shows normocytic anemia. Flow cytometric analysis of bone marrow detects a kappa restricted plasma cell population that expresses CD138 and CD38. CD56 is positive. CD19 and CD20 are negative. T lymphocytes are immunophenotypically unremarkable. Polyclonal B lymphocytes are detected. Blast gate is not significantly increased. Immunohistochemical stains are performed on the biopsy core and clot section for greater sensitivity and further architectural assessment with adequate controls. CD138 positive plasma cells comprise > 70% of the total cellularity. AE1/AE3 is negative. Taken together, the morphologic and immunophenotypic findings are consistent with a diagnosis of plasma cell neoplasm. Trilineage hematopoietic activity as are seen.