[Compression cervical spine cord injury in patients with posterior cranial fossa tumors operated on in the sitting position: two cases with different outcomes].

: The paper describes two cases of posterior cranial fossa pathology, operated on in the sitting position on the operating table. In one case, symptoms of cervical spine injury caused by undiagnosed preoperative cervical spine pathology emerged in a female patient in the early postoperative period. In the other case, cervical spine pathology was diagnosed before surgery and evoked potentials were monitored to prevent possible cervical spine injury in the sitting position during an operation.