Intellectual disability, severe, and Polymicrogyria

Diseases related with Intellectual disability, severe and Polymicrogyria

In the following list you will find some of the most common rare diseases related to Intellectual disability, severe and Polymicrogyria that can help you solving undiagnosed cases.

Top matches:

Early infantile epileptic encephalopathy-8 is an X-linked disorder characterized by seizure onset before 2 years of age and severe developmental delay. Some patients have hyperekplexia (summary by Shimojima et al., 2011).For general phenotypic descriptions and discussions of genetic heterogeneity of early infantile epileptic encephalopathy and hyperekplexia, see EIEE1 (OMIM ) and hereditary hyperekplexia (OMIM ), respectively.

HYPEREKPLEXIA-EPILEPSY SYNDROME Is also known as hyperekplexia and epilepsy

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Intellectual disability, severe
  • Hypertonia


SOURCES: MESH ORPHANET OMIM MENDELIAN

More info about HYPEREKPLEXIA-EPILEPSY SYNDROME

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Spasticity


SOURCES: MESH OMIM MENDELIAN

More info about BAND HETEROTOPIA; BH

Autosomal recessive primary microcephaly-5 (MCPH5) is characterized by decreased occipitofrontal circumference (OFC), usually less than 3 standard deviations (SD) of the mean, present at birth and associated with mental retardation and speech delay. Other features may include short stature or mild seizures. MCPH5 is associated with a simplification of the cerebral cortical gyral pattern in some cases, which is considered within the phenotypic spectrum of primary microcephaly (review by Woods et al., 2005; Saadi et al., 2009; Passemard et al., 2009).For a general phenotypic description and a discussion of genetic heterogeneity of primary microcephaly (MCPH), see MCPH1 (OMIM ).

Related symptoms:

  • Intellectual disability
  • Seizures
  • Short stature
  • Hearing impairment
  • Microcephaly


SOURCES: OMIM MESH MENDELIAN

More info about MICROCEPHALY 5, PRIMARY, AUTOSOMAL RECESSIVE; MCPH5

Other less relevant matches:

Focal epilepsy with speech disorder is a childhood-onset seizure disorder with a highly variable phenotype. Seizures typically occur in the temporal lobe, or rolandic brain region, which affects speech and language, and electroencephalogram (EEG) characteristically shows centrotemporal spike-wave discharges. EEG abnormalities often occur during sleep and may manifest as continuous spike-wave discharges during slow-wave sleep (CSWS or CSWSS). FESD represents an electroclinical spectrum that ranges from severe early-onset seizures associated with delayed psychomotor development, persistent speech difficulties, and mental retardation to a more benign entity characterized by childhood onset of mild or asymptomatic seizures associated with transient speech difficulties followed by remission of seizures in adolescence and normal psychomotor development. There is incomplete penetrance and intrafamilial variability, even among family members who carry the same GRIN2A mutation (summary by Lesca et al., 2013; Lemke et al., 2013; Carvill et al., 2013).The disorder represented here encompasses several clinical entities, including Landau-Kleffner syndrome (LKS), epileptic encephalopathy with continuous spike and wave during slow-wave sleep (ECSWS; CSWSS), autosomal dominant rolandic epilepsy, mental retardation, and speech dyspraxia (ADRESD; RESDAD), and benign epilepsy with centrotemporal spikes (BECTS; see {117100}). LKS is classically described as a childhood-onset variant of epileptic aphasia. It is associated with EEG abnormalities occurring in the temporal lobe of the language-dominant hemisphere, even in the absence of overt clinical seizures. LKS is sometimes referred to as an 'acquired aphasia' because most affected children show normal psychomotor development until the onset of seizures, usually between 3 and 7 years, although some may have prior delayed development. A hallmark of the disorder is severe impairment in auditory language comprehension and speech. Some patients may also have persistent intellectual disability or behavioral abnormalities reminiscent of autism or attention deficit-hyperactivity disorder. EEG abnormalities typically include centrotemporal spikes suggestive of rolandic epilepsy or continuous spike and waves during slow-wave sleep. The presence of CSWS is associated with more widespread behavioral and cognitive regression than LKS, although the 2 disorders may be considered part of a spectrum. There is controversy about the precise definition of LKS and its relationship to CSWS that stems mainly from the phenotypic heterogeneity of the disorder (summary by Stefanatos, 2011).

EPILEPSY, FOCAL, WITH SPEECH DISORDER AND WITH OR WITHOUT MENTAL RETARDATION; FESD Is also known as aphasia, acquired, with epilepsy

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Microcephaly


SOURCES: OMIM MENDELIAN

More info about EPILEPSY, FOCAL, WITH SPEECH DISORDER AND WITH OR WITHOUT MENTAL RETARDATION; FESD

Bilateral frontoparietal polymicrogyria (BFPP) is a sub-type of polymicrogyria (PMG; see this term), a cerebral cortical malformation characterized by excessive cortical folding and abnormal cortical layering, that involves the frontoparietal region of the brain and that presents with hypotonia, developmental delay, moderate to severe intellectual disability, pyramidal signs, epileptic seizures, non progressive cerebellar ataxia, dysconjugate gaze and/or strabismus.

BILATERAL FRONTOPARIETAL POLYMICROGYRIA Is also known as cerebellar ataxia with neuronal migration defect

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Microcephaly
  • Ataxia


SOURCES: OMIM ORPHANET MESH MENDELIAN

More info about BILATERAL FRONTOPARIETAL POLYMICROGYRIA

Severe neonatal-onset encephalopathy with microcephaly is a rare monogenic disease with epilepsy characterized by neonatal-onset encephalopathy, microcephaly, severe developmental delay or absent development, breathing abnormalities (including central hypoventilation and/or respiratory insufficiency), intractable seizures, abnormal muscle tone and involuntary movements. Early death is usual.

SEVERE NEONATAL-ONSET ENCEPHALOPATHY WITH MICROCEPHALY Is also known as severe congenital encephalopathy due to mecp2 mutation

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Microcephaly


SOURCES: ORPHANET MESH OMIM MENDELIAN

More info about SEVERE NEONATAL-ONSET ENCEPHALOPATHY WITH MICROCEPHALY

Congenital hydrocephalus-1 is characterized by onset in utero of enlarged ventricles due to a disturbance of cerebrospinal fluid accumulation. Affected individuals may have neurologic impairment (summary by Drielsma et al., 2012).Hydrocephalus can also be caused by Arnold-Chiari malformation, atresia of foramen of Magendie, stenosis of aqueduct of Sylvius (OMIM ), toxoplasmosis, hydranencephaly, etc. Furthermore, it develops in infancy or childhood in achondroplasia (OMIM ) and in Hurler disease (OMIM ). Genetic Heterogeneity of Congenital HydrocephalusSee also HYC2 (OMIM ), caused by mutation in the MPDZ gene (OMIM ) on chromosome 9p23, and HYC3 (OMIM ), caused by mutation in the WDR81 gene (OMIM ) on chromosome 17p13.An X-linked form of congenital hydrocephalus (HSAS, HYCX; {307000}) is caused by mutation in the L1CAM gene on (OMIM ) on chromosome Xq28.

HYDROCEPHALUS, CONGENITAL, 1; HYC1 Is also known as hydrocephaly|hydrocephalus, nonsyndromic, autosomal recessive 1, formerly|ventriculomegaly

Related symptoms:

  • Intellectual disability
  • Seizures
  • Neoplasm
  • Macrocephaly
  • Ventriculomegaly


SOURCES: OMIM ORPHANET MENDELIAN

More info about HYDROCEPHALUS, CONGENITAL, 1; HYC1

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Microcephaly


SOURCES: ORPHANET MESH OMIM MENDELIAN

More info about LISSENCEPHALY 3; LIS3

Complex cortical dysplasia with other brain malformations (CDCBM) is a disorder of aberrant neuronal migration and disturbed axonal guidance. Affected individuals have mild to severe mental retardation, strabismus, axial hypotonia, and spasticity. Brain imaging shows variable malformations of cortical development, including polymicrogyria, gyral disorganization, and fusion of the basal ganglia, as well as thin corpus callosum, hypoplastic brainstem, and dysplastic cerebellar vermis. Extraocular muscles are not involved (summary by Poirier et al., 2010).Mutation in the TUBB3 gene can also cause congenital fibrosis of extraocular muscles-3A (CFEOM3A ), a milder and somewhat different neurologic phenotype. Genetic Heterogeneity of Complex Cortical Dysplasia With Other Brain MalformationsSee also CDCBM2 (OMIM ), caused by mutation in the KIF5C gene (OMIM ) on chromosome 2q23; CDCBM3 (OMIM ), caused by mutation in the KIF2A gene (OMIM ) on chromosome 5q12; CDCBM4 (OMIM ), caused by mutation in the TUBG1 gene (OMIM ) on chromosome 17q21; CDCBM5 (OMIM ), caused by mutation in the TUBB2A gene (OMIM ) on chromosome 6p25; CDCBM6 (OMIM ), caused by mutation in the TUBB gene (OMIM ) on chromosome 6p21; CDCBM7 (OMIM ), caused by mutation in the TUBB2B gene (OMIM ) on chromosome 6p25; and CDCBM8 (OMIM ), caused by mutation in the TUBA8 gene (OMIM ) on chromosome 22q11.See also lissencephaly (e.g., LIS1, {607432}), which shows overlapping features and may result from mutation in tubulin genes.

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Microcephaly


SOURCES: OMIM ORPHANET MENDELIAN

More info about CORTICAL DYSGENESIS WITH PONTOCEREBELLAR HYPOPLASIA DUE TO TUBB3 MUTATION

MRD6 is an autosomal dominant neurodevelopmental disorder characterized by delayed psychomotor development and intellectual disability of variable severity. Additional features may include seizures, hypotonia, abnormal movements, such as dystonia, and autistic features. Some patients may have structural malformations of cortical development on brain imaging. The phenotype is highly variable and reflects a spectrum of neurodevelopmental abnormalities that range from mild intellectual disability without seizures to an encephalopathy (summary by Platzer et al., 2017).

Related symptoms:

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Generalized hypotonia
  • Microcephaly


SOURCES: OMIM MENDELIAN

More info about MENTAL RETARDATION, AUTOSOMAL DOMINANT 6, WITH OR WITHOUT SEIZURES; MRD6

Top 5 symptoms//phenotypes associated to Intellectual disability, severe and Polymicrogyria

Symptoms // Phenotype % cases
Intellectual disability Very Common - Between 80% and 100% cases
Seizures Very Common - Between 80% and 100% cases
Global developmental delay Common - Between 50% and 80% cases
Microcephaly Common - Between 50% and 80% cases
Generalized hypotonia Common - Between 50% and 80% cases

Other less frequent symptoms

Patients with Intellectual disability, severe and Polymicrogyria. may also develop some of the following symptoms:

Uncommon Symptoms - Between 30% and 50% cases

Intellectual disability, moderate Ventriculomegaly Agenesis of corpus callosum Cerebellar hypoplasia Hypoplasia of the corpus callosum Spasticity Encephalopathy Cortical dysplasia Motor delay Hypertonia Strabismus Ataxia EEG abnormality Behavioral abnormality Muscular hypotonia of the trunk Hypoplasia of the brainstem Lissencephaly

Rare Symptoms - Less than 30% cases

Autistic behavior Cerebral visual impairment Focal-onset seizure Status epilepticus Hemiparesis Abnormal pyramidal sign Tetraplegia Perisylvian polymicrogyria Nystagmus Hyperreflexia Pachygyria Dilatation Blindness Feeding difficulties Vomiting Autism Developmental regression Neurological speech impairment Attention deficit hyperactivity disorder Hyperactivity Intellectual disability, progressive Hydrocephalus Delayed speech and language development Macrocephaly Growth delay Epileptic encephalopathy Heterotopia Stroke Chorea Spontaneous abortion Mental deterioration Arnold-Chiari malformation Prominent forehead Hypsarrhythmia Irritability Congenital contracture Dyskinesia Choanal atresia Headache Neoplasm Congenital encephalopathy Abnormal muscle tone Central hypoventilation Hypoventilation Focal impaired awareness seizure Poor eye contact Progressive microcephaly Postnatal microcephaly Feeding difficulties in infancy Communicating hydrocephalus Dilated fourth ventricle Pes planus Hemianopia External ophthalmoplegia Polyneuropathy Ophthalmoplegia Spastic diplegia Flexion contracture Agyria Esodeviation Congenital fibrosis of extraocular muscles Cryptorchidism Visual impairment Atrial septal defect Congenital microcephaly Cerebellar dysplasia Cerebral atrophy Abnormality of neuronal migration Cerebellar vermis hypoplasia Dystonia Intellectual disability, profound Spastic tetraplegia Absent speech Intellectual disability, mild Normal pressure hydrocephalus Intraventricular hemorrhage Hydranencephaly Optic nerve hypoplasia Aqueductal stenosis Apnea Esotropia Rigidity Prominent glabella Generalized-onset seizure Febrile seizures Urinary incontinence Progressive cerebellar ataxia Generalized myoclonic seizures Dysarthria Cognitive impairment Abnormal facial shape Unilateral polymicrogyria Thick corpus callosum Small cerebral cortex Hypoplasia of the frontal lobes Partial agenesis of the corpus callosum Dysdiadochokinesis Cortical gyral simplification Narrow forehead Sloping forehead Highly arched eyebrow Proptosis Hearing impairment Short stature Profound global developmental delay Sleep disturbance Abnormality of the skeletal system Exaggerated startle response Cyanosis Apraxia Language impairment Gastroesophageal reflux Truncal ataxia Respiratory failure Myoclonus Constipation Respiratory insufficiency Failure to thrive Polymicrogyria, anterior to posterior gradient Frontoparietal polymicrogyria Cerebral dysmyelination Nonprogressive cerebellar ataxia Type II lissencephaly Ankle clonus Congenital muscular dystrophy Exotropia Dysphasia Broad-based gait Abnormal cerebellum morphology Dysmetria Muscular dystrophy Babinski sign Continuous spike and waves during slow sleep EEG with centrotemporal focal spike waves Oromotor apraxia Agnosia Speech apraxia Epileptic spasms Aphasia Generalized tonic-clonic seizures with focal onset


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