title: Magnetic resonance imaging, magnetic resonance spectroscopy, and facial dysmorphism in a case of Lowe syndrome with novel OCRL1 gene mutation.
abstract: Lowe syndrome is a multisystem disorder characterized by anomalies of the eye, the nervous system, and the kidney. It is an uncommon, X-linked disease. Bilateral cataract and severe hypotonia are present at birth. Psychomotor retardation is evident in childhood, while renal complications arise in adolescence. The mutation of the gene OCRL1 localized at Xq26.1 is responsible for the disease. The authors report on a 12-year-old male with mental retardation, facial dysmorphism as prominent forehead, long and slender-shaped face, prominent eyebrows, epicanthus, microphthalmia, low-posterior set ears with prominent helix and antihelix, long philtrum, and mild prognathia. He also had history of neonatal hypotonia and congenital cataracts. His cranial magnetic resonance imaging showed increased signal intensity in white matter on T2-weighted images, and magnetic resonance spectroscopy revealed elevation of the myoinositol peak at 3.56 ppm. Molecular analysis of OCRL1 gene revealed novel N574K mutation on 17th exon.
authors.affiliation: Department of Medical Genetics, Istanbul University Cerrahpasa Medical School, Istanbul, Turkey. ayuksel@istanbul.edu.tr
authors.forename: Adnan
authors.initials: A
authors.lastname: Yuksel
authors.forename: Ender
authors.initials: E
authors.lastname: Karaca
authors.forename: M Sait
authors.initials: MS
authors.lastname: Albayram
mesh_terms: D001216:Asparagine / Q000235:genetics; D001921:Brain / Q000473:pathology; D002648:Child; D004252:DNA Mutational Analysis; D005091:Exons / Q000235:genetics; D005145:Face / Q000002:abnormalities*; D006801:Humans; D008239:Lysine / Q000235:genetics; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008297:Male; D009154:Mutation / Q000235:genetics*; D009800:Oculocerebrorenal Syndrome / Q000150:complications / Q000235:genetics / Q000473:pathology; D010744:Phosphoric Monoester Hydrolases / Q000235:genetics*
chemical_list: D001216:Asparagine; D010744:Phosphoric Monoester Hydrolases; C075695:OCRL protein, human; D008239:Lysine