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SEER Inquiry System - Report
Produced: 11/22/2024 6:14 PM
Question 20170017
Inquiry Details
References:
2007 MP/H Rules. Other Sites
Question:
MP/H Rules/Multiple primaries--Liver: How many primaries of the same site and histology are reported if tumors appear years apart but neither is surgically removed? See Discussion.
Discussion:
Patient has an April 2009 biopsy proven diagnosis of cholangiocarcinoma with a single liver mass in segment 4 that was treated with TACE and systemic chemotherapy. The treated lesion was stated to be stable in subsequent scans performed between 2010 and late 2015.
December 2015 imaging identified a new mass in the left hepatic lobe consistent with cholangiocarcinoma. Is the 2015 tumor a new primary?
In auditing files for expected (but not received) abstracts due from facilities, we've observed these types of cases not being consistently reported as multiple primaries.
Answer:
Abstract as a single primary. The 2009 liver tumor remained "stable" following treatment and the patient was never disease free.
