RESUMO
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.
Assuntos
Hipotálamo/patologia , Infiltração Leucêmica/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras/patologia , Transplante de Medula Óssea , Criança , Meios de Contraste , Feminino , Gadolínio DTPA , Humanos , Infiltração Leucêmica/diagnóstico por imagem , Infiltração Leucêmica/terapia , Imageamento por Ressonância Magnética , Compostos Organometálicos , Ácido Pentético/análogos & derivados , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Indução de Remissão , Tomografia Computadorizada por Raios XRESUMO
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.
Assuntos
Angiografia Digital/normas , Isquemia Encefálica/diagnóstico por imagem , Adulto , Idoso , Angiografia Digital/métodos , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/patologia , Isquemia Encefálica/patologia , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/patologia , Artérias Cerebrais/patologia , Humanos , Pessoa de Meia-Idade , Fatores de RiscoRESUMO
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.
Assuntos
Doença de Meniere/diagnóstico por imagem , Tomografia por Raios X , Aqueduto Vestibular/diagnóstico por imagem , Vestíbulo do Labirinto/diagnóstico por imagem , Humanos , Doença de Meniere/diagnóstico , Doença de Meniere/patologia , Aqueduto Vestibular/patologiaRESUMO
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.
