Reportability--Ovary: Is an ovarian serous borderline tumor with microinvasion with serous tumor aggregates (3 mm in greatest dimension) in 2 of 10 pelvic lymph nodes reportable? See Discussion.
Histology--Soft Tissue: How is histology coded for malignant neoplasm with neuroectodermal differentiation and TPR-NTRK1 gene rearrangement diagnosed on left shoulder excision? See Discussion.
Update to current manual/Neoadjuvant therapy/Pathologic tumor size--Breast: When a patient with invasive breast cancer is started on neoadjuvant therapy and at surgery is found to have only residual in-situ disease, do we record the size of the in-situ tumor for Pathologic Tumor Size? See Discussion.
Mets at diagnosis fields--Heme & Lymphoid Neoplasms (Lymphoma): How are Mets at Diagnosis -- Bone, Brain, Liver, Lung, Lymph Node, and Other -- to be coded for lymphomas in 2016? Are they always 0 if the TNM Stage is I, II, or III? How is bone marrow involvement coded -- in which Mets at Diagnosis field?
Summary Stage 2018/Extension--Prostate: Can imaging be used to code SEER Summary Stage 2018? MRI shows tumor involved the seminal vesicles and the patient did not have surgery. AJCC does not use imaging to clinically TNM stage a prostate case.
Reportability--Ovary: Is micropapillary serous carcinoma (MPSC) of the ovary reportable? What are the differences between “noninvasive" and “low malignant potential?" See discussion.
Solid Tumor Rules/Multiple Primaries--Brain and CNS: How many primaries are accessioned, and what M Rule applies, for a 2012 diagnosis of left cerebral transitional meningioma (9537/0) that transforms to an atypical meningioma (9539/1) in 2022? See Discussion.
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