Solid Tumor Rules/Histology--Esophagus: Are SMARCA4- deficient malignant neoplasms (8020/3) valid for esophagus or other sites besides lung? 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.
EOD 2018/EOD Regional Nodes--Oropharynx: Is code 550 missing “< equal to 6 cm” in the data item EOD Regional Nodes for Oropharynx HPV-Associated, Version 9? Otherwise, bilateral or contralateral lymph nodes with extranodal extension (ENE) that are >6 cm could fit into 550 OR 650.
First Course of Therapy/Hormone Therapy--Meningioma: Should Sandostatin be coded as treatment for a Grade 1 meningioma? Patient had surgery and was somatostatin receptor 2 (SSTR2) positive by immunohistochemistry.
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