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SEER Inquiry System - Report
Produced: 07/08/2025 5:39 AM
Question 20021209
Inquiry Details
References:
SEER EOD-88, 3rd Ed, 7-8
Question:
EOD-Extension/EOD-Lymph Nodes--Rectosigmoid: How do you code these fields for a scan-based clinically staged T3 N1 rectosigmoid primary in a patient who received chemotherapy and radiation prior to a resection that demonstrated invasion only into the muscularis and no positive lymph nodes?
Discussion:
Answer:
For cases diagnosed 1998-2003:
Use the best information available, in this case, the clinical staging, to code EOD. Code the EOD-Extension field to 40 [Invasion through muscularis propria or muscularis, NOS] and the EOD Lymph Node field to 3 [Regional lymph node(s) NOS] because the case had a clinical stage of T3 N1. EOD is coded using the most extensive clinical or pathologic stage.
Cancer Site Category:
Colon
Data Item Category:
N/A
Other Category:
N/A
Year:
2002
