The present study identified predictors for @entity3538 (ICA) dissection in cases showing ICA involvement in @entity1653 . Twelve cases encountered over the past 4 years were reviewed. Based on MRI findings, @entity1 were divided into two groups; six @entity1 demonstrated complete ICA involvement (encasement) and the other six showed partial ICA involvement (engulfment). The ICA was dissected in all cases in the engulfment group and in four of six cases in the encasement group. The ICA can be dissected even if it is involved at the centre of the @entity5 if the @entity5 is soft and can be aspirated. Preservation of the perforating arteries is more important and more difficult. Angiographic finding showing encasement of a long segment of the ICA is unfavourable because of the high possibility that the perforating arteries are involved. Local stenosis of ICA is another unfavourable finding for surgical dissection because @entity5 invasion of the arterial wall would be suspected. Thus, ICA encasement by the @entity5 is the less favourable finding for surgery but it is not a decisive predictor. More important findings for ICA dissection in cases showing ICA encasement are involvement of a long segment of the ICA and @entity543 on angiogram.

@entity3538 (ICA) dissectability in cases showing ICA involvement in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumour'] @entity3538 :: ('MESH:D002341', 'Disease') :: ['surgical internal carotid artery'] @entity1653 :: ('MESH:D008579', 'Disease') :: ['parasellar meningiomas'] @entity543 :: ('MESH:D016893', 'Disease') :: ['local ICA stenosis']
@entity1653 :: (MESH:D008579,Disease) :: ['parasellar meningioma']
