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SEER Inquiry System - Report
Produced: 10/28/2025 1:28 AM
Question 20120010
Inquiry Details
References:
#1: 2011 SEER Manual, 7. #3, Example 3
#2: 2007 MP/H Rules
Question:
Discussion:
The 2011 pathology report: Spine at L3 biopsy: metastatic adenocarcinoma. Per addendum: Prior total abdominal hysterectomy specimen from 2003 was reviewed and showed an ovarian mucinous cystic tumor of borderline malignancy which has a similar morphology to the invasive adenocarcinoma seen on current specimen.
Abdominal tissue and omental biopsy: invasive and non-invasive glandular implants compatible with origin from ovarian mucinous borderline tumor.
The final diagnosis per radiation oncologist was, "recurrent ovarian cancer."
Answer:
This is a single primary. The diagnosis date is coded to 2003 and the histology is mucinous cystadenocarcinoma [8470/3]. The bone, abdominal tissue and omentum are metastatic sites. The MP/H Rules do not apply to metastases.
This is a case where an invasive or microinvasive element was missed in the original pathology. Because the entire tumor was not sectioned and placed on slides, the pathologist used their expertise when sectioning and selecting tissue to be examined. It is not a matter of poor judgment, just a fact that it is impossible to review the tissue from the entire tumor. The behavior must be changed to malignant [/3].
