2024 SEER Manual/Primary Site--Retroperitoneum: What is the primary site code for a final diagnosis of endometrioid adenocarcinoma from a biopsy of a right retroperitoneal mass? See Discussion.
2024 SEER Manual/Reportability--Breast: Is "lobular intraepithelial neoplasia" (LIN) a glandular intraepithelial neoplasia? If so, is lobular neoplasia II (LN II)/LIN II non-reportable, similar to PanIN II - SINQ 20240026? See Discussion.
2025 SEER Manual/Primary Site--Lymph Nodes: How is Primary Site coded when lymphangioleiomyomatosis is incidentally diagnosed in pelvic lymph nodes on a resection for an unrelated reason? See Discussion.
Ambiguous Terminology/Histology--Heme & Lymphoid Neoplasms: How are the histology and diagnostic confirmation to be coded when the pathology report's final diagnosis is "plasma cell dyscrasia consistent with plasma cell myeloma" and the physician subsequently states this diagnosis was plasma cell myeloma? See Discussion.
Ambiguous terminology/Reportability--Heme & Lymphoid Neoplasms: Is a physician diagnosis of "appears to be a myeloproliferative disorder" reportable if the patient has no treatment and the physician elects to follow the patient with CBC's?.