OBJECTIVE: To investigate the implications of dural tail sign (DTS) in the tailored far lateral approach for the resection of ventral @entity1653 ( @entity1653 ). METHODS: Clinical data of 16 @entity1 surgically treated for ventral @entity1653 over 5 years were reviewed retrospectively. RESULTS: The DTS was positive in 11 cases (68.8%) and negative in 5 cases (31.2%). The most frequent form was single cranial tail (7/11), followed by multiple-tails consisting of cranial tail and caudal tail (3/11), and multiple-tails composed of cranial tail and contralateral tail (1/11). Retrocondylar approach was carried out in 5 cases without DTS characterized by a narrow dural attachment and Partial transcondylar approach in 11 cases with DTS featured by a @entity450 . The drilling ranged from approximately one fifth to one third of the condyle with reference to the DTS form and @entity5 size. @entity5 removal was achieved in 16 @entity1 . @entity260 were encountered in 25% of @entity1 , predominantly associated with @entity129 . Follow-up ranging from 8 to 56 months (mean 24.4 months) showed no @entity5 recurrence. CONCLUSIONS: Besides the @entity5 dural attachment and @entity5 size, we propose that DTS should be considered as another factor in planning surgical approach for the ventral @entity1653 . The differentiation between the positive and negative DTS plays a role in the neurosurgical planning of ventral @entity1653 . Bone removal should be warranted in the @entity5 with DTS, particularly the multiple-form with contralateral tail, to facilitate surgical procedure and achieve a more radical resection.

Dural tail sign in the resection of ventral XXXX via a far lateral approach: surgical implications.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity129 :: ('MESH:D003389', 'Disease') :: ['cranial nerve impairment'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'Total tumor'] @entity260 :: ('MESH:D011183', 'Disease') :: ['Postoperative complications'] @entity450 :: ('MESH:D006940', 'Disease') :: ['broad and hypervascular dural attachment'] @entity1653 :: ('MESH:D008579', 'Disease') :: ['FMMs', 'foramen magnum meningiomas']
@entity1653 :: (MESH:D008579,Disease) :: ['foramen magnum meningiomas']
