Reportability--Appendix: Is a metastatic low-grade appendiceal mucinous neoplasm reportable if the pathologist states that it is a borderline tumor of the appendix? See Discussion.
MP/H Rules/Histology--Brain and CNS: How is histology coded for a left occipital parietal area tumor stated to be a "low grade neuroectodermal neoplasm most consistent with neuronal tumor but lacking classic features of ganglioma" if the pathologist states the tumor is not malignant?
Date of Multiple Tumors--Breast: How is this field coded when a second breast tumor is found at mastectomy two months after the original breast cancer was diagnosed, but during initial workup and treatment? See Discussion.
SEER Guidelines Over Time: Should we apply the current guidelines to previously missed older cases now being reported to the central registry? See discussion.
Primary Site--Breast: What subsite is to be coded for a case of invasive Paget disease of the nipple with an infiltrating ductal carcinoma of the lower inner quadrant?
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