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Washington University Experience | NEOPLASMS (PINEAL) | Pineocytoma | 4G Pineocytoma (Case 4) Ki67 1.jpg
The proliferative index of 3.4% and the presence of rare mitoses suggested the possibility of a somewhat higher rate of proliferation. ---- Pineocytoma, WHO Grade 2. Nonetheless, 9 years later MRI showed no recurrence of tumor.