Adult polyglucosan body disease is a rare autosomal recessive disease, caused by glycogen branching enzyme gene mutations, characterised by urinary dysfunction, spastic paraplegia with vibration sense loss, peripheral neuropathy, and cognitive impairment. Fabry's disease is an X-linked lysosomal storage disorder caused by α-galactosidase A gene mutations; neurological manifestations include cerebrovascular accidents, small-fibre neuropathy and autonomic dysfunction. Here, we report the case of a 44-year-old Sicilian male with stroke-like episodes, hypohidrosis and mild proteinuria, which led to the diagnosis of Fabry's disease after a hemizygous mutation (p.Ala143Thr) in α-galactosidase A gene was detected. Subsequently, he developed progressive walking difficulties and dementia, which were considered atypical for Fabry's disease. Therefore, we performed additional investigations that eventually led to the diagnosis of adult polyglucosan body disease caused by two novel missense mutations (p.Asp413His and p.Gly534Val) in the glycogen branching enzyme gene. Recently, the pathogenic role of the p.Ala143Thr mutation in causing Fabry's disease has been questioned. This case underlines the importance of performing further investigations when facing with atypical features even in the presence of a genetic diagnosis of a rare disease.
Adult polyglucosan body disease in a patient originally diagnosed with Fabry's disease / A. Sagnelli, M. Savoiardo, C. Marchesi, L. Morandi, M. Mora, M. Morbin, L. Farina, A. Mazzeo, A. Toscano, S. Pagliarani, S. Lucchiari, G.P. Comi, E. Salsano, D. Pareyson. - In: NEUROMUSCULAR DISORDERS. - ISSN 0960-8966. - 24:3(2014 Mar), pp. 272-276.
|Titolo:||Adult polyglucosan body disease in a patient originally diagnosed with Fabry's disease|
SALSANO, ETTORE (Penultimo)
|Parole Chiave:||α-Galactosidase A; 1,4-Alpha-glucan branching enzyme; Adult polyglucosan body disease; Fabry's disease; Lysosomal storage disease; Adult; Fabry Disease; Glycogen Storage Disease; Humans; Male; Nervous System Diseases; Diagnostic Errors; Neurology (clinical); Pediatrics, Perinatology and Child Health; Genetics (clinical); Neurology|
|Settore Scientifico Disciplinare:||Settore MED/26 - Neurologia|
|Data di pubblicazione:||mar-2014|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.nmd.2013.11.006|
|Appare nelle tipologie:||01 - Articolo su periodico|