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SEER Inquiry System - Report
Produced: 01/17/2025 2:29 AM
Question 20180023
Inquiry Details
References:
2018 ICD-O-3 New Terms, Behaviors, Codes. updated 4/20/2018
Question:
Reportability/Behavior: Is myxoinflammatory fibroblastic sarcoma (MIFS) reportable for 2018? This histology is on the 2018 ICD-O-3 histology update list with a behavior code of /1. See discussion.
Discussion:
This will be a tough one for registrars to recognize as non-reportable since the terminology contains sarcoma, so we just want to double check.
Answer:
Myxoinflammatory fibroblastic sarcoma (MIFS) (C49._), 8811/1, is not reportable for 2018 based on the 2018 ICD-O-3 New Codes, Behaviors, and Terms list. This is a new histology/behavior not previously listed in ICD-O-3. According to the WHO 4th Ed Tumors of Soft Tissue & Bone, this histology has been given a benign (/1) behavior; however, if the pathologist and/or physician state the tumor is malignant or metastatic, report the case and assign behavior code /3.
