Gómez GG, Solórzano MSA, Ávila ZML, Cerqueda SR, Mora TMA

Language: Spanish
References: 7
Page: 331-336
PDF size: 169.55 Kb.

ABSTRACT

Introduction: Malformations of the vein of Galen (VGAM) comprise a heterogeneous set of vascular anomalies that in fact represent an arteriovenous fistulization between deep coroid arteries and the median prosencephalic vein of Markowski. Malformation is developed between the second and third gestation trimester and symptomatology appears in the neonatal period. The diagnosis is carried out by means of Ultrasound (US), Tomography by Contrast (CT) Magnetic Resonance Imaging (MRI) or Angiography.
Objectives: To compare usefulness of the imaging methods for the diagnosis of VGAM. To suggest an approach for this type of patients.
Case report: 3 months-old female patient with macrocrania and cranial hypertension, to whom TAC, US, MRI and Angiography studies were carried out.
Results: TAC characterized lesion as a vascular lesion of the half line and demonstrated its dependence to the Willis polygon. Additionally, the US demonstrated aberrant afferents of the anterior circulation or coroid. MRI defined the angio-architecture better, even better than the Angiography, due to the flow striking by main afference of the posterior circulation.
Discussion: Cranial hypertension approach in the neonatal period should be carried out through US, since it prevents any risk for the patient. For a better definition of the angio-architecture, MRI is preferable to TAC for its best spatial definition and relative harmlessness, except for the exposure to the anesthesia and in some cases, on the diagnostic Angiography due to the properties inherent to the lesion, for what the latter should be reserved for cases with therapeutic indication.

REFERENCES

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