RESUMEN
The revival of endolymphatic sac surgery has led to many investigations in Meniere's disease, including lateral tomography of the vestibular aqueduct. Contrary to recent literature, we found no difference in the presence and morphology of the vestibular aqueduct when assessed radiologically in a group of Meniere's patients and a control group. Our assessment of this information in regard to etiology and treatment of Meniere's disease is presented.
Asunto(s)
Enfermedad de Meniere/diagnóstico por imagen , Tomografía por Rayos X , Acueducto Vestibular/diagnóstico por imagen , Vestíbulo del Laberinto/diagnóstico por imagen , Humanos , Enfermedad de Meniere/diagnóstico , Enfermedad de Meniere/patología , Acueducto Vestibular/patologíaRESUMEN
The revival of endolymphatic sac surgery has led to many investigations in Meniere's disease, including lateral tomography of the periaqueductal pneumatization. We radiologically assessed a series of Meniere's patients and a control group, and found hypocellularity to be more common in Meniere's disease as the literature has stated. However, we found this finding bilaterally in patients with unilateral disease. Our assessment of this information in regard to the etiology and treatment of Meniere's disease is presented.
Asunto(s)
Enfermedad de Meniere/diagnóstico por imagen , Hueso Temporal/patología , Tomografía por Rayos X , Acueducto Vestibular/diagnóstico por imagen , Vestíbulo del Laberinto/diagnóstico por imagen , Humanos , Enfermedad de Meniere/patología , Acueducto Vestibular/patologíaRESUMEN
The central nervous system is affected in up to 10% of patients with acute lymphoblastic leukaemia, usually in the form of leptomeningeal infiltration. Parenchymal spread is rare. We report a case in which CT and MRI demonstrated hypothalamic and infundibular relapse.
Asunto(s)
Hipotálamo/patología , Infiltración Leucémica/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras/patología , Trasplante de Médula Ósea , Niño , Medios de Contraste , Femenino , Gadolinio DTPA , Humanos , Infiltración Leucémica/diagnóstico por imagen , Infiltración Leucémica/terapia , Imagen por Resonancia Magnética , Compuestos Organometálicos , Ácido Pentético/análogos & derivados , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Inducción de Remisión , Tomografía Computarizada por Rayos XRESUMEN
Fifty patients being investigated for ischaemic cerebrovascular disease underwent both intravenous digital subtraction angiography (IV-DSA) and intra-arterial arch digital subtraction angiography (arch-DSA) to enable a direct comparison to be made between the two techniques. The overall quality of the images obtained by arch-DSA was better than that obtained by IV-DSA, but there was no significant difference between the number and gradation of stenoses detected by the two techniques. No significant stenosis was missed by IV-DSA and the technique was found to be sufficiently accurate for it to be used as a screening procedure for carotid bifurcation stenoses suitable for carotid endarterectomy. The advantages and limitations of both techniques are discussed.