The pulvinar sign: frequency and clinical correlations in Fabry disease.
ABSTRACT Fabry disease is an X-linked lysosomal deficiency of alpha-galactosidase A that results in cellular accumulation of galactoconjugates, mainly globotriaosylceramide, particularly in blood vessels. Neuroradiological findings include ischemic stroke, white matter lesions, vascular abnormalities (vertebrobasilar dolichoectasia and vessel tortuosity), and posterior thalamus involvement (the so called pulvinar sign). The purpose of our study was to investigate the presence of the increased pulvinar signal intensity on T1-weighted imaging - pulvinar sign and its relationship with other clinical findings, in a non-selected cohort of Fabry patients.
We performed a prospective analysis of two populations of patients (36 subjects) with Fabry disease. Patients were followed-up at the Department of Internal Medicine of the Bichat Hospital in Paris (France) and at the Neurological Clinic of the University Hospital of Padova (Italy). Brain MR studies of each patient included T1- and T2- weighted images, FLAIR sequences, and in some cases diffusion weighted images.
A total of 36 patients (16 males, 20 females) were investigated in 14 families. The pulvinar sign was found in 5 male patients, but not in female patients. Seven patients had had at least one stroke (territorial or lacunar). There was no correlation between stroke and the pulvinar sign. All patients with the pulvinar sign had hypertrophic cardiomyopathy. Four patients out of five with the pulvinar sign were on dialysis or had a kidney transplantation.
Our findings suggest that the pulvinar sign is a highly specific sign of Fabry disease, found in male patients with cardiac signs and severe kidney involvement.
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ABSTRACT: Young onset dementia is a challenge. We describe a case, where a patient presented with psychosis, dementia and MRI showing pulvinar sign, all of this typical of variant Cruetzfelt Jacob disease (CJD). Subsequent investigations lead to the diagnosis of a treatable illness and patient was improved and MRI sign reversed, underlining again the importance of search needed for treatable diseases in any "typical" case of fatal illness.Annals of Indian Academy of Neurology 04/2014; 17(2):222-4. · 0.93 Impact Factor
Article: Fabry disease and early stroke.[Show abstract] [Hide abstract]
ABSTRACT: Fabry disease, an X-linked lysosomal storage disorder, results from deficient activity of the enzyme α-galactosidase A. Affected males with the classic phoenotype have acroparaesthesias, hypohidrosis, and corneal opacities in childhood and develop renal failure, cardiac hypertrophy or strokes in the third to fifth decade of life. Some female heterozygotes are asymptomatic, some as severely affected as males. The natural history of Fabry patients includes transitory cerebral ischaemia and strokes, even in very young persons of both genders. The mechanism is partly due to vascular endothelial accumulation of GL-3. White matter lesions on MRI occur. Both males and females can be safely treated with enzyme replacement; and thus screening for Fabry disease of young stroke populations should be considered. There are, however, no hard data of treatment effect on mortality and morbidity. The analyses of results from ongoing studirs will add to the decision on whether or not to screen young stroke patients for Fabry disease. Finally, stroke prophylactic therapy should be used liberally in patients of both genders with verified Fabry disease. This includes primary prevention such as lifestyle counseling, targeting blood pressure, managing atrial fibrillation, diabetes mellitus, hyperlipidaemia, and ASA.Stroke research and treatment. 01/2011; 2011:615218.
Article: Fabry’s disease[Show abstract] [Hide abstract]
ABSTRACT: Fabry's disease is an X-linked lysosomal storage disorder caused by abnormalities in the GLA gene, which leads to a deficiency in α-galactosidase A. The abnormal accumulation of glycosphingolipids, primarily globotriaosylceramide, manifests as serious and progressive impairment of renal and cardiac function. In addition, patients experience pain, gastrointestinal disturbance, transient ischemic attacks and strokes. Disease presentation in female heterozygotes may be as severe as in males although women may also remain asymptomatic. This review covers all basic aspects of the disease such as epidemiology, pathophysiology, clinical presentation by systems, diagnosis, management, prevention, and repercussions on quality of life. With the development of enzyme replacement therapy in the past few years, early initiation of treatment was found to be key for reduction of disease burden in major affected organs with improvement in neuropathic pain, decreased cardiac mass and stabilization of renal function, gastrointestinal symptoms, and hearing. This review aims to raise the awareness of the signs and symptoms of Fabry disease as well as to provide guidelines for the diagnosis and treatment.Journal of the Neurological Sciences. 01/2014;