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Pathology reads: 1. FNA left groin lymph node tissue (smears and cell block): B-cell lymphoma, low grade. The concurrent flow cytometry (3-FC-16-288) identifies a monoclonal B cell population with immunophenotype of CD10++, CD5-, CD23-, CD20++ and unusual CD19-. Overall findings favor follicular lymphoma. FNA Specimen Adequacy: Evaluation for specimen adequacy: Immediate cytology smear review for specimen adequacy was performed at the time of the FNA procedure by pathologist. Smears reviewed from 2 passes in one reading. The specimen was adequate cytological evaluation. Surg Path Final Report Special Studies Immunohistochemistry (CD45, MCK, CD20, CD3, CD10, Bcl6, MUM1 \T\ Ki67) was performed on block 1A to confirm the diagnosis. All controls show appropriate reaction. Lymphoma cells are positive for CD45, CD20, CD10 and weakly positive for bcl6(+) and MUM1(+/-), and negative for MCK. CD3 highlights few T lymphocytes. Ki67 labeling index is low, less than 10%. The immunoprofile supports above diagnosis. Chromosomal study for t(14;18) translocation will be performed, and an addendum report will follow. Flow Final Report Comment: The lymphoma appears to be derived from germinal centre B cells. Together with the findings from the lymph node biopsy (3-FN16-416), follicular lymphoma is favored. However, negative CD19 and CD22 are unusual.

12/30/11 Bladder Biopsy: Diffuse carcinoma in situ of bladder, urothelial cancer at trigone (Stage T1)

1/30/2012 Transurethral resection of the bladder was non-papillary, urothelial carcinoma, focal invasion of lamina propria, staged T1

11/10/14, 9/28/15, 9/26/16, 10/19/17 all had positive bladder cytology of urothelial carcinoma

5/16/16 Left renal pelvis aspirate: positive for malignant cells, urothelial carcinoma

9/26/16 Left renal pelvis aspirate: positive for malignant cells, urothelial carcinoma

10/18/16-11/7/16 Bacillus Calmette-Guerin (BCG) x3 administered into the renal collecting system via ureteral catheter

The hospital registrar reports that the case was identified at the hospital because of the referral for chemotherapy for the metastatic GIST. The records from the out-of-state hospital mentioned a history of a small bowel resection in 2003 for a borderline tumor. The registrar went back through the hospital's old records and found the surgery was done for GIST of low malignant potential at her facility. The question is whether to report the case or not, and if reported, is 2003 the diagnosis date.

The rules say to change the behavior and backdate the diagnosiswhen a tumor is presumed benign and islater diagnosed as malignant. Another problem for this case is that the out-of-state hospital did not review the slides from the 2003 surgery.

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.

There is a discrepancy in regional lymph nodes for lung between SEER and AJCC. Supraclavicular lymph nodes/cervical lymph nodes are distant for SEER but regional for AJCC. For SEER states, when there is an FNA or biopsy of a supraclavicular lymph node performed and it is positive for a lung primary and no other lymph nodes are examined, do you code 95 in Regional Nodes Positive/Regional Nodes Examined and code "1" for Scope of Regional Lymph Node Surgery or do you not count the FNA/biopsy of the supraclavicular lymph node since it is distant?

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?

Pathology report microscopic description: The tumor is a meningothelial neoplasm (EMA+; BCL-2 and CD34 negative) with prominent collagen deposition. Necrosis and prominent nucleoli are present; no other atypical features are seen. Mitoses are present, up to 2 per 10 high-powered fields. Final Diagnosis: Dura, bicoronal craniotomy (specimen A): Meningioma with atypical features.

There is no rule in benign brain and CNS section of Multiple Primary/Histology (MP/H) Rules stating to code the most specific histologic term when the diagnosis is (something less specific, i.e., adenocarcinoma). This rule is in other site chapters of MP/H but appears missing in the benign brain and CNS section.

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.