SEER Inquiry System - Question 20021209 Details

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SEER Inquiry System - Report

Produced: 01/04/2026 10:27 PM

Question 20021209

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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