title: Brain scans of the posterior fossa.
mesh_terms: D001254:Astrocytoma / Q000175:diagnosis; D001932:Brain Neoplasms / Q000175:diagnosis*; D002781:Cholesteatoma / Q000175:diagnosis; D004806:Ependymoma / Q000175:diagnosis; D006394:Hemangiosarcoma / Q000175:diagnosis; D006801:Humans; D008527:Medulloblastoma / Q000175:diagnosis; D008579:Meningioma / Q000175:diagnosis; D009362:Neoplasm Metastasis; D009442:Neurilemmoma / Q000175:diagnosis; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium