The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Expansion of the contrast filled space in myelography is seen in:   (A) Intramedullary tumor   (B) Intradural extramedullary tumor   (C) Spinal dysraphism   (D) Extradural tumor
['(A) Intramedullary tumor <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Intramedullary tumor \n (B) Intradural extramedullary tumor \n (C) Spinal dysraphism \n (D) Extradural tumor <> possible answers', '  Expansion of the contrast filled space in myelography is seen in: <> context@']