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SEER Inquiry System - Report
Produced: 01/11/2026 6:57 PM
Question 20000845
Inquiry Details
References:
ICD-O-3
Question:
Primary Site: What code should be used to represent the site for an "extraovarian" papillary serous adenocarcinoma located in the "rectal muscle sheath"? See discussion.
Discussion:
The location of the tumor in the rectus muscle sheath is unusual and suggests an origin within a preexisting mullerian.
Answer:
Code the Primary Site field to C49.4 [connective, subcutaneous and other soft tissues of the abdomen].
Cancer Site Category:
N/A
Data Item Category:
Primary site
Other Category:
N/A
Year:
2000
