ErkrankungMentale Retardierung bei kortikaler Dysplasie, Differentialdiagnose

NGS +

[Sanger]

Mentale Retardierung (aktuell akzeptierter englischer Begriff, „intellectual deficits“) ist ein lebenslang schwächender Zustand, von dem bis zu 2-3% der Bevölkerung in westlichen Ländern betroffen sind. Während die kausale Pathogenese extrem unterschiedlich ist, stellen bei >50% der Patienten genetische Ätiologien die häufigste Ursache dar. Dieser Prozentsatz nimmt durch ausgeweitete Anwendung effizienter NGS-Technologien zu. Hirnfehlbildungen verursachen nicht wenige Fälle von intellektuellen Defiziten und umfassen eine Gruppe von genetischen Entwicklungsstörungen, die in der Kindheit neben anderen neurologischen Merkmalen auftreten. In einigen Fällen entstehen Fehlbildungen des Kortex durch de novo oder somatische Mutationsereignisse im Gameten- oder Postzygoten-Stadium, einige der Hirnfehlbildungen sind vererbt. Insbesondere werden hier Genmutationen für mentale Retardierung bei kortikaler Dysplasie angeführt sowie deren Differentialdiagnostik. Ebensolche für mentale Retardierung speziell bei Lissenzephalie werden separat behandelt. Dabei werden autosomal dominante, selten rezessive Erbgänge bebeschrieben. Die DNA-diagnostische Ausbeute ist derzeit nicht sicher anzugeben. Die klinische Diagnose kann durch ein negatives molekulargenetisches Ergebnis keinesfalls ausgeschlossen werden.

Referenzen: https://www.ncbi.nlm.nih.gov/books/NBK350554/

• Alias: Intellectual disability, cortical dysplasia
• Alias: Psycho-motor retardation, cortical dysplasia
• Allelic: Autism susceptibility 15 (CNTNAP2)
• Allelic: Cowden syndrome 5 (PIK3CA)
• Allelic: Deafness, AD 20 + 26 (ACTG1)
• Allelic: Deafness, AD 83 (MAP1B)
• Allelic: Dystonia 4, torsion, AD (TUBB4A)
• Allelic: Dystonia, juvenile-onset (ACTB)
• Allelic: FG syndrome 4 (CASK)
• Allelic: Fibrosis of extraocular muscles, congenital, 3A (TUBB3)
• Allelic: Heimler syndrome 1 [Peroxisome biogenesis disorder 1C] (PEX1)
• Allelic: Heimler syndrome 2 [Peroxisome biogenesis disorder 4C] (PEX6)
• Allelic: Hydranencephaly with abnormal genitalia (ARX)
• Allelic: Lymphangioleiomyomatosis (TSC1)
• Allelic: Lymphangioleiomyomatosis, somatic (TSC2)
• Allelic: Microhydranencephaly (NDE1)
• Allelic: Muscular dystrophy, limb-girdle, AR 23 (LAMA2)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 1 (POMT1)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 2 (POMT2)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 3 (POMGNT1)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 4 (FKTN)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 5 (FKRP)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 7 (CRPPA)
• Allelic: Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 8 (POMGNT2)
• Allelic: Muscular dystrophy-dystroglycanopathy, limb-girdle, type C, 9 (DAG1)
• Allelic: Pitt-Hopkins like syndrome 1 (CNTNAP2)
• Allelic: Rhizomelic chondrodysplasia punctata, type 1 (PEX7)
• Allelic: Rhizomelic chondrodysplasia punctata, type 5 (PEX5)
• Allelic: Sotos syndrome 3 (APC2)
• Allelic: Symmetric circumferential skin creases, congenital, 1 (TUBB)
• Agenesis of corpus callosum, cardiac, ocular + genital syndrome (CDH2)
• Allelic: Epilepsy, familial temporal lobe, 7 (RELN)
• Baraitser-Winter syndrome 1 (ACTB)
• Baraitser-Winter syndrome 2 (ACTG1)
• Bryant-Li-Bhoj neurodevelopmental syndrome 1 (H3-3A)
• CEBALID [craniofacial def., dysmorphic ears, brain abnormalities, language delay, ID] syndrome (MN1)
• Cerebral dysgenesis, neuropathy, ichthyosis, palmoplantar keratoderma syndrome (SNAP29)
• Charcot-Marie-Tooth disease, axonal, type 20 (DYNC1H1)
• Chudley-McCullough syndrome (GPSM2)
• Congenital heart defects, dysmorphic facial features + intellectual developmental disorder (CDK13)
• Cortical dysplasia, complex, with other brain malformations 1 (TUBB3)
• Cortical dysplasia, complex, with other brain malformations 10 (APC2)
• Cortical dysplasia, complex, with other brain malformations 2 (KIF5C)
• Cortical dysplasia, complex, with other brain malformations 3 (KIF2A)
• Cortical dysplasia, complex, with other brain malformations 4 (TUBG1)
• Cortical dysplasia, complex, with other brain malformations 5 (TUBB2A)
• Cortical dysplasia, complex, with other brain malformations 6 (TUBB)
• Cortical dysplasia, complex, with other brain malformations 7 (TUBB2B)
• Cortical dysplasia, complex, with other brain malformations 8 (TUBA8)
• Cortical dysplasia, complex, with other brain malformations 9 (CTNNA2)
• Cortical dysplasia-focal epilepsy syndrome (CNTNAP2)
• Cortical malformations, occipital (LAMC3)
• Developmental + epileptic encephalopathy 1 (ARX)
• Developmental + epileptic encephalopathy 98 (ATP1A2)
• Epilepsy, familial focal, with variable foci 1 (DEPDC5)
• Focal cortical dysplasia, type II, somatic (MTOR)
• Focal cortical dysplasia, type II, somatic (TSC2)
• Galloway-Mowat syndrome 3 (OSGEP)
• Genitourinary and/or/brain malformation syndrome (PPP1R12A)
• Global developmental delay [panelapp] (RAB11A)
• Heterotopia, periventricular, 1 (FLNA)
• Intellectual developmental disorder + microcephaly with pontine + cereb. hypoplasia (CASK)
• Intellectual developmental disorder with autism + speech delay (TBR1)
• Intellectual developmental disorder, AD 13 (DYNC1H1)
• Intellectual developmental disorder, AR 34, with variant lissencephaly (CRADD)
• Intellectual developmental disorder, XL 29 (ARX)
• Intellectual disability [panelapp] (RAB11A)
• Lissencephaly 1 (PAFAH1B1)
• Lissencephaly 10 (CEP85L)
• Lissencephaly 2, Norman-Roberts type (RELN)
• Lissencephaly 3 (TUBA1A)
• Lissencephaly 4 {with microcephaly} (NDE1)
• Lissencephaly 5 (LAMB1)
• Lissencephaly 6, with microcephaly (KATNB1)
• Lissencephaly 9 with complex brainstem malformation (MACF1)
• Lissencephaly, XL (DCX)
• Lissencephaly, XL 2 (ARX)
• Megalencephalic leukoencephalopathy with subcortical cysts 2A (HEPACAM)
• Megalencephaly-capillary malformation-polymicrogyria syndrome, somatic (PIK3CA)
• Megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome 1 (PIK3R2)
• Megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome 3 (CCND2)
• Mental retardation, AD 13 (DYNC1H1)
• Mental retardation, XL 29 and others (ARX)
• Mental retardation, with/-out nystagmus (CASK)
• Microcephaly 2, primary, AR, with/-out cortical malformations (WDR62)
• Microcephaly 5, primary, AR (ASPM)
• Microcephaly, short stature + polymicrogyria with seizures (RTTN)
• Muscular dystrophy, congenital, merosin deficient or partially deficient (LAMA2)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 1 (POMT1)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 2 (POMT2)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 3 (POMGNT1)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 4 (FKTN)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 5 (FKRP)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 6 (LARGE1)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 7 (CRPPA)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 8 (POMGNT2)
• Muscular dystrophy-dystroglycanopathy (cong. with brain + eye anomalies), type A, 9 (DAG1)
• Muscular dystrophy-dystroglycanopathy (cong. with mental retardation), type B, 1 (POMT1)
• Muscular dystrophy-dystroglycanopathy (cong. with mental retardation), type B, 2 (POMT2)
• Muscular dystrophy-dystroglycanopathy (cong. with mental retardation), type B, 3 (POMGNT1)
• Muscular dystrophy-dystroglycanopathy (cong. with mental retardation), type B, 6 (LARGE1)
• Muscular dystrophy-dystroglycanopathy (cong. with/-out mental retard.), type B, 5 (FKRP)
• Neurodevelopmental disorder with microcephaly, cortical malformations + spasticity (TMX2)
• Neurodevelopmental disorder with microcephaly, seizures + cortical atrophy (VARS1)
• Okur-Chung neurodevelopmental syndrome (CSNK2A1)
• Pachygyria, microcephaly, developmental delay, dysmorphic facies, with/-out seizures (TUBGCP2)
• Pallister-Hall-like syndrome (SMO)
• Partington syndrome (ARX)
• Periventricular heterotopia with microcephaly (ARFGEF2)
• Periventricular nodular heterotopia 7 (NEDD4L)
• Periventricular nodular heterotopia 9 (MAP1B)
• Peroxisome biogenesis disorder 10A [Zellweger] (PEX3)
• Peroxisome biogenesis disorder 10B (PEX3)
• Peroxisome biogenesis disorder 11A [Zellweger] (PEX13)
• Peroxisome biogenesis disorder 11B (PEX13)
• Peroxisome biogenesis disorder 12A [Zellweger] (PEX19)
• Peroxisome biogenesis disorder 13A [Zellweger] (PEX14)
• Peroxisome biogenesis disorder 14B (PEX11B)
• Peroxisome biogenesis disorder 1A [Zellweger] (PEX1)
• Peroxisome biogenesis disorder 1B [NALD/IRD] (PEX1)
• Peroxisome biogenesis disorder 2A [Zellweger] (PEX5)
• Peroxisome biogenesis disorder 2B (PEX5)
• Peroxisome biogenesis disorder 3A [Zellweger] (PEX12)
• Peroxisome biogenesis disorder 3B (PEX12)
• Peroxisome biogenesis disorder 4A [Zellweger] (PEX6)
• Peroxisome biogenesis disorder 4B (PEX6)
• Peroxisome biogenesis disorder 5A [Zellweger] (PEX2)
• Peroxisome biogenesis disorder 5B (PEX2)
• Peroxisome biogenesis disorder 6A [Zellweger] (PEX10)
• Peroxisome biogenesis disorder 6B (PEX10)
• Peroxisome biogenesis disorder 7A [Zellweger] (PEX26)
• Peroxisome biogenesis disorder 7B (PEX26)
• Peroxisome biogenesis disorder 8A [Zellweger] (PEX16)
• Peroxisome biogenesis disorder 8B (PEX16)
• Peroxisome biogenesis disorder 9B (PEX7)
• Polymicrogyria, bilateral frontoparietal (ADGRG1)
• Polymicrogyria, bilateral perisylvian (ADGRG1)
• Proud syndrome (ARX)
• Pseudo-TORCH syndrome 1 (OCLN)
• Schizencephaly (EMX2)
• Smith-Kingsmore syndrome (MTOR)
• Subcortical laminal heterotopia, XL (DCX)
• Subcortical laminar heterotopia (PAFAH1B1)
• Tuberous sclerosis-1 (TSC1)
• Tuberous sclerosis-2 (TSC2)