BACKGROUND: Little is known about long-term results of gamma knife (GK) stereotactic radiosurgery (SRS) as a primary or a secondary postoperative therapy for @entity7824 ( @entity7824 ). The authors retrospectively reviewed long-term outcomes of 13 @entity1 with CN treated with GK SRS. METHODS: Thirteen @entity1 were treated with GK SRS as a primary (6 @entity1 ) or a secondary postoperative therapy (7 @entity1 ). Follow-up clinical status and brain magnetic resonance imaging (MRI) were thoroughly analyzed. The functional status of @entity1 was assessed with the Karnofsky Performance Scale during follow-up. RESULTS: The median follow-up period for clinical status and imaging studies was 61 months (range, 6 months to 96 months). @entity5 decreased in 5 @entity1 who received GK SRS as a primary treatment. However, the @entity5 recurred in 2 @entity1 treated with a secondary GK SRS after surgery from the @entity41 bed that was not covered by the GK SRS. Parenchymal changes and secondary @entity5 were not found in follow-up MRIs of all 13 @entity1 . The Karnofsky Performance Scale score of all @entity1 , except for 1 @entity1 who suffered from an unrelated anteriorly communicating arterial @entity1756 , did not change after GK SRS. CONCLUSIONS: GK SRS may be useful as a primary or a secondary postoperative therapy for the treatment of CN. However, more attention should be paid to residual or recurrent CN during treatment, and regular long-term follow-up MRI should be mandatory to validate the procedure.

Gamma knife radiosurgery for XXXX : primary and secondary treatment.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity41 :: ('MESH:D018365', 'Disease') :: ['residual tumor'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'Tumors', 'malignancies'] @entity7824 :: ('MESH:D018306', 'Disease') :: ['CNs', 'central neurocytomas'] @entity1756 :: ('MESH:D017542', 'Disease') :: ['aneurysmal rupture']
@entity7824 :: (MESH:D018306,Disease) :: ['central neurocytoma']
