Patient Demographics and Clinical Features
Eight patients (2 female; 6 male) were identified with a median age of 13years (range 7.52-16.88years) at diagnosis. Pain was the presenting symptom in all 8 patients and one patient also had lower extremity weakness. All primary tumors were noted to be intradural and predominantly in the lumbrosacral region of the spine, except one that arose in the lower thoracic spine, involving the filum terminale or adjacent to the tip of the conus medullaris (Fig.1.A-B). Three patients had radiologically identified disseminated disease at presentation (Fig.1.C-D).