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SEER Inquiry System - Report
Produced: 10/15/2025 4:10 PM
Question 20071057
Inquiry Details
References:
2007 SEER Manual, C-1055. Appendix C. 5, Example 1
Question:
Primary Site/CS Extension--Lymphoma: How are these fields coded for a lymphoma found in the spleen and retroperitoneal lymph nodes? See Discussion.
Discussion:
A patient presents with a 6-month history of night sweats, low grade fever and significant weight loss. Physical exam reveals no palpable lymph nodes, tender abdomen and splenomegaly. Patient undergoes an exploratory laparotomy with splenectomy and dissection of two retroperitoneal lymph nodes. Spleen and both lymph nodes were positive for small cleaved-cell lymphoma, high grade.
Answer:
Code the primary site to spleen.
Code CS extension as 22 [involvement of spleen plus lymph nodes below the diaphragm]. This gives it a stage IIS.
Spleen is an extranodal (not extralymphatic) site.
The retroperitoneal lymph nodes are located below the diaphragm.
Cancer Site Category:
Lymphoma
Data Item Category:
Primary site
Other Category:
N/A
Year:
2007
