Cervical Pilocytic Astrocytoma Mimicking Spondylotic Myelopathy: A Case Report and Literature Review.

Spinal cord pilocytic astrocytoma (PA) is a rare, low-grade tumor in adults, typically presenting with a cystic component. Correct diagnosis is crucial, as gross total resection may improve survival rates. We report the case of a 44-year-old patient with chronic neck and arm pain, along with hypoesthesia on the left side, initially suspected of having myelitis based on MRI findings.

MRI-guided DBS of STN under general anesthesia for Parkinson's disease: results and microlesion effect analysis.

Background: The efficacy of the subthalamic nucleus (STN) stimulation for Parkinson's disease has been widely established. The microlesion effect (MLE) due to deep brain stimulation (DBS) electrode implantation has been reputed to be a good predictor for long-term efficacy of the procedure but its analysis in asleep implantation is still unclear. We thus analyzed MLE rate in our strategy of targeting the STN on MRI under general anesthesia and its correlation with our long-term results.