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SEER Inquiry System - Report
Produced: 11/28/2024 8:46 AM
Question 20130176
Inquiry Details
References:
#1: 2013 SEER Manual
#2: ICD-O-3
Question:
Reportability--Ovary: Is an adult granulosa cell tumor of the right adnexa reportable if the left adnexa, diaphragm and paratubal tissue are reported to be consistent with metastasis? See discussion.
Discussion:
Per the pathology report: Right adnexa: adult granulosa cell tumor. Left adnexa: Foci of metastatic granulosa cell tumor in paratubal tissue. Diaphragm smears: consistent with metastatic granulosa cell tumor. Comment: The morphology and immunoprofile of the cellular aggregates in the paratubal soft tissue are consistent with metastatic granulosa cell tumor.
Answer:
Based on the information provided, this case of adult granulosa cell tumor is malignant and reportable. According to our expert pathologist consultant, "though granulosa cell tumor NOS/ adult NOS is 8620/1, the presence of peritoneal implants or metastases, and/or lymph node metastases indicates the tumor is malignant, and it should be coded /3."
Note that the presence of implants or metastases does not indicate malignancy in the case of low malignant potential ovarian epithelial tumors. Our path expert explains "in contrast, by convention the behavior of borderline/LMP ovarian epithelial tumors is determined by the ovarian primary, and is /1, even though there may be peritoneal implants/metastases, or metastatic disease in lymph nodes. The treatment may vary in these circumstances, but to my knowledge the decision as to the tumor designation remains based on the primary tumor."
