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Report Produced: 05/03/2026 14:08 PM

Report Question ID Question
20021154

Primary Site: What code is used to represent the primary site for a "teratocarcinoma with features of embryonal carcinoma" removed from the thigh muscle in a patient with x-ray negative testicles? See discussion.
20130123

Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a diffuse large B-cell lymphoma, immunoblastic variant involving the left maxillary vestibule and entire left maxilla? See Discussion.
20120086 Primary site: What is the single primary site used for a patient with multiple tumors in the duodenum and jejunum? See discussion.
20110127

Primary Site--Brain and CNS: Are meninges surrounding cranial nerves cranial meninges [C700] or a part of the specific nerve's sheath? Is the primary site for an optic nerve sheath meningioma coded to optic nerve [C723] or cranial meninges [C700]?
20120029 Primary site--Lung: What is the code for primary site if a small cell carcinoma presents as mediastinal masses?
20250028

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.
20150052

Primary Site--Sarcoma: What is the best primary site code for an undifferentiated sarcoma of the pulmonary artery? See discussion.

20071057 Primary Site/CS Extension--Lymphoma: How are these fields coded for a lymphoma found in the spleen and retroperitoneal lymph nodes? See Discussion.
20021100 Primary Site: How do we code the primary site for a malignancy that occurs in parenchyma located in an ectopic site? See discussion.
20210024

Primary Site--Vulva: What is the primary site of patient with an excision of a left vulvar cystic mass showing focal mammary-type ductal carcinoma in situ (DCIS) on 11/06/2020? See Discussion.