Mesial Temporal Pilocytic Astrocytoma compressing Brainstem: Clinical
Cure after Stereotactically-Inserted Ommaya and Radiosurgery.
Pilocytic astrocytoma has wide spectrum of age groups, clinical picture,
anatomical location, and progression patterns. Rare unique unresectable
locations in children worth analysis. Nine-year old child presented with
severe hemiparesis, speech difficulties, and dystonia due to giant
mesial temporal pilocytic astrocytoma, mixed solid and cystic. The
rapidly progressive cyst was controlled by repeated aspiration through a
stereotactically inserted Ommaya along the cyst axis. One-year later,
radiosurgery was delivered for the solid part. Complete clinical cure of
the patients and 86% and 74% volume reduction were achieved in the
cystic and solid part, respectively, even without aspiration.