title: Percutaneous biopsy of a metastatic spinal nerve root nodule in a child.
mesh_terms: D001254:Astrocytoma / Q000473:pathology / Q000556:secondary*; D001706:Biopsy / Q000379:methods; D001932:Brain Neoplasms / Q000473:pathology*; D002648:Child; D006801:Humans; D008297:Male; D013120:Spinal Cord Neoplasms / Q000473:pathology / Q000556:secondary*; D013126:Spinal Nerve Roots / Q000473:pathology*