Genetic, Radiologic, and Clinical Variability in Brown-Vialetto-van Laere Syndrome
Ian R Woodcock, Manoj P Menezes, Lee Coleman, Joy Yaplito-Lee, Heidi Peters, Susan M White, Rachel Stapleton, Dean G Phelan, Belinda Chong, Sebastian Lunke, Zornitza Stark, James Pitt, Monique M Ryan, Colin Robertson, Eppie M Yiu
SEMINARS IN PEDIATRIC NEUROLOGY | W B SAUNDERS CO-ELSEVIER INC | Published : 2018
Brown-Vialetto-van Laere syndrome is characterized by a progressive sensorimotor neuropathy, optic atrophy, hearing loss, bulbar dysfunction, and respiratory insufficiency. Mutations in SLC52A2 and SLC52A3, encoding riboflavin transporters RFVT2 and RFVT3, respectively, are the genetic basis of this disorder, often referred to as riboflavin transporter deficiency types 2 and 3, respectively. We present cases of both types of riboflavin transporter deficiency, highlighting the distinguishing clinical features of a rapidly progressive motor or sensorimotor axonal neuropathy, optic atrophy, sensorineural hearing loss, and bulbar dysfunction. One child presented with isolated central apnea and h..View full abstract
The authors would like to acknowledge the Melbourne Genomics Health Alliance who funded the whole-exome sequencing in Individual 3.