RESUMEN
La incontinencia pigmenti es un trastorno neurocutàneo raro, con una frecuencia de 1 en 40 000 recién nacidos, de etiología genética asociada a mutaciones en el gen IKBKG, localizado en Xq28, con herencia dominante ligada al X. Tiene una presentación clínica de manifestaciones muy variables detectadas desde la etapa neonatal y puede asociar afectación cutànea, dental, ocular y neurológica, y cada una de estas con un diagnóstico diferencial distinto. Se presenta a una paciente pediàtrica con diagnóstico de incontinencia pigmenti a la semana de vida. En la evaluación oftalmológica inicial, se observaron lesiones vasculares retinianas. Se decidió el tratamiento con làser, con buenos resultados, y se consiguió estabilizar la visión.
Incontinentia pigmenti is a rare neurocutaneous disorder with a frequency of 1 in 40,000 newborn; it is associated with mutations in IKBKG gene in Xq28, inherited as an X-linked dominant trait. Clinical manifestations detected since the newborn period are highly variable, with skin, teeth, eyes, and nervous system manifestations, and each with a characteristic differential diagnosis. We present a pediatric patient diagnosed with incontinentia pigmenti at the first week of life. In the initial ophthalmologic evaluation, retinal vascular lesions were observed. The outcomes of laser treatment of the ischemic peripheral retina were good and resulted in stability of vision.
Asunto(s)
Humanos , Femenino , Recién Nacido , Pediatría , Incontinencia Pigmentaria , Manifestaciones Oculares , Terapia por Láser , Lesiones del Sistema VascularRESUMEN
Incontinentia pigmenti is a rare neurocutaneous disorder with a frequency of 1 in 40,000 newborn; it is associated with mutations in IKBKG gene in Xq28, inherited as an X-linked dominant trait. Clinical manifestations detected since the newborn period are highly variable, with skin, teeth, eyes, and nervous system manifestations, and each with a characteristic differential diagnosis. We present a pediatric patient diagnosed with incontinentia pigmenti at the first week of life. In the initial ophthalmologic evaluation, retinal vascular lesions were observed. The outcomes of laser treatment of the ischemic peripheral retina were good and resulted in stability of vision.
La incontinencia pigmenti es un trastorno neurocutàneo raro, con una frecuencia de 1 en 40 000 recién nacidos, de etiología genética asociada a mutaciones en el gen IKBKG, localizado en Xq28, con herencia dominante ligada al X. Tiene una presentación clínica de manifestaciones muy variables detectadas desde la etapa neonatal y puede asociar afectación cutànea, dental, ocular y neurológica, y cada una de estas con un diagnóstico diferencial distinto. Se presenta a una paciente pediàtrica con diagnóstico de incontinencia pigmenti a la semana de vida. En la evaluación oftalmológica inicial, se observaron lesiones vasculares retinianas. Se decidió el tratamiento con làser, con buenos resultados, y se consiguió estabilizar la visión.
Asunto(s)
Incontinencia Pigmentaria/complicaciones , Terapia por Láser/métodos , Enfermedades de la Retina/terapia , Diagnóstico Diferencial , Femenino , Humanos , Incontinencia Pigmentaria/diagnóstico , Recién Nacido , Enfermedades de la Retina/diagnóstico , Enfermedades de la Retina/etiología , Resultado del TratamientoRESUMEN
We report the clinical and biochemical findings from two unrelated patients who presented with a novel syndrome: encephalopathy, intellectual disability, severe hypotonia, chorea and optic atrophy. Whole exome sequencing (WES) uncovered a homozygous mutation in the ATP8A2 gene (NM_016529:c.1287G > T, p.K429N) in one patient and compound heterozygous mutations (c.1630G > C, p.A544P and c.1873C > T, p.R625W) in the other. Only one haploinsufficiency case and a family with a homozygous mutation in ATP8A2 gene (c.1128C > G, p.I376M) have been described so far, with phenotypes that differed slightly from the patients described herein. In conclusion, our data expand both the genetic and phenotypic spectrum associated with ATP8A2 gene mutations.
Asunto(s)
Adenosina Trifosfatasas/genética , Encefalopatías/genética , Corea/genética , Discapacidad Intelectual/genética , Hipotonía Muscular/genética , Mutación , Atrofia Óptica/genética , Proteínas de Transferencia de Fosfolípidos/genética , Encefalopatías/complicaciones , Niño , Preescolar , Corea/complicaciones , Femenino , Homocigoto , Humanos , Discapacidad Intelectual/complicaciones , Hipotonía Muscular/complicaciones , Atrofia Óptica/complicaciones , Linaje , Síndrome , Secuenciación del ExomaRESUMEN
The most frequent ophthalmic lesions associated to neurofibromatosis type 1 include iris Lisch nodules, optic nerve gliomas, and neurofibromas located on the eyelid, conjunctiva or orbit. Glaucoma is much less frequent, and it may be difficult to diagnose and treat. We present two patients with neurofibromatosis type 1 and associated congenital glaucoma. In case 1, the glaucoma was present at birth, and was the first symptom of the disease. It was surgically treated by means of an Ahmed glaucoma valve implantation, with good intraocular pressure (IOP) control after 13 months of follow-up. In case 2, the glaucoma appeared at 5 months old, and a trabeculectomy was initially performed; it failed 2 years later and an Ahmed glaucoma valve was then implanted, with adequate IOP control after 7 years of follow-up. Both children were males, and in both cases there were orbital neurofibromas and a dysplasia of the greater wing of the sphenoid of the same side. In case 2, orbital enlargement surgery was also performed at 4 years old. Congenital glaucoma management in the context of neurofibromatosis is very complex due to the frequent association of orbital and eyelid tumors and bone dysplasia, and its prognosis is usually poor. We present two cases in which good control of IOP has been achieved with Ahmed glaucoma valve implantation after 13 months and 7 years of follow-up.