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Washington University Experience | NEOPLASMS (GLIAL) | Subependymal Giant Cell Astrocytoma (SEGA) | 1G1 SEGA (Case 1) Ki67 10X
1G1,2 Ki-67 stain is positive in 20-25% of the tumor cells. Even though the tumor is mitotically active with a significant proliferative index, this does not constitute a high grade diagnosis or suggest any prognostic significance in a SEGA. ---- In support of this, the patient is alive with occasional seizures 10 years post-surgery with no recurrence or spread of her SEGA
