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Our knowledge of mitochondrial respiratory chain diseases has increased dramatically in recent years, but relatively little information is available about their prevalence and incidence, either in pediatric or adult patients. This study reports incidence and prevalence estimates, and summarizes the clinical, biochemical, histologic, and genetic(More)
We describe a rare case of an intradural spinal chordoma. Only two cases have been previously reported and it is the second case diagnosed with MRI. A 65-year-old man presented with progressive disturbance of gait and weakness in the lower extremities. MRI revealed a intradural C6-C7 isointense mass, on T1- and T2-weighted images. The lesion enhanced after(More)
INTRODUCTION West's syndrome is known to have symptomatic, cryptogenetic and idiopathic forms. Greater knowledge of the different pathologies and the development of new diagnostic techniques have allowed the list of symptomatic forms to be extended and congenital disorders of the metabolism account for a significant percentage as an aetiopathogenic factor.(More)
Choline kinase beta gene (CHKB) mutations have been identified in Megaconial Congenital Muscular Dystrophy (MDCMC) patients, a very rare inborn error of metabolism with 21 cases reported worldwide. We report the case of a Spanish boy of Caucasian origin who presented a generalized congenital muscular hypotonia, more intense at lower limb muscles, mildly(More)
BACKGROUND Choline kinase beta gene (CHKB) mutations have been identified in Megaconial Congenital Muscular Dystrophy (MDCMC) patients, but never in patients with an additional combined deficiency of complexes I, III and IV and mitochondrial DNA (mtDNA) depletion. AIMS To report mutations in carry genes for MDCMC with respiratory chain defects and mtDNA(More)
INTRODUCTION Pontocerebellar hypoplasias constitute a group of hereditary neurodegenerative disorders of uncertain aetiopathogenesis. They have been reported as being associated with deficiencies of complexes in the mitochondrial respiratory chain (MRC) and with congenital disorders of glycosylation. On the basis of clinical and neuropathological criteria,(More)
INTRODUCTION Infantile neuroaxonal dystrophy (INAD), or Seitelberger disease, is a neurodegenerative disease of unknown origin which is transmitted by autosomal recessive inheritance. Clinically, it courses with psychomotor stagnation and regression that begins at the age of one or two years, associated to hypotonia with mixed clinical features (segmentary(More)
INTRODUCTION Multiple symmetric lipomatosis (MSL), which is predominantly found in middle aged males, is characterised by accumulations of fat in the neck, shoulders and other parts of the trunk, and sometimes associated with different neurological manifestations, both central and peripheral. Although its aetiology is unknown, it has been described as(More)