Recurrent brainstem cavernous malformations following primary resection: blind spots, fine lines, and the right-angle method.

CONCLUSIONS: The 6.6% rate of BSCM recurrence requiring reoperation reflects the fine lines between complete resection and recurrence and between safe and harmful surgery. The detection of remnants is difficult postoperatively and remains so even at 6 months when the resection bed has healed. The 5.9% annual hemorrhage risk associated with recurrent BSCM in this experience is consistent with that reported for unoperated BSCMs. The right-angle method helps to anticipate blind spots and meticulously inspect the resection cavity for residual BSCM during surgery. A low percentage of recurrent BSCM (5%-10%) ensures ongoing effort toward an acceptable balance of safety and completeness. PMID: 33254145 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery - Category: Neurosurgery Authors: Tags: J Neurosurg Source Type: research