Hypertelorism, and Generalized seizures

Medium match INTELLECTUAL DEVELOPMENTAL DISORDER WITH NEUROPSYCHIATRIC FEATURES; IDDNPF

Intellectual developmental disorder with neuropsychiatric features is an autosomal recessive disorder characterized by moderate intellectual disability, relatively mild seizures, and neuropsychiatric abnormalities, such as anxiety, obsessive-compulsive behavior, and autistic features. Mild facial dysmorphic features may also be present (summary by Srour et al., 2017).

• Autosomal recessive inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia

SOURCES: OMIM UMLS MONDO

Medium match GLYCOSYLPHOSPHATIDYLINOSITOL BIOSYNTHESIS DEFECT 15; GPIBD15

GPIBD15 is an autosomal recessive disorder characterized by delayed psychomotor development, variable intellectual disability, hypotonia, early-onset seizures in most patients, and cerebellar atrophy, resulting in cerebellar signs including gait ataxia and dysarthria. The disorder is caused by a defect in glycosylphosphatidylinositol (GPI) biosynthesis (summary by Nguyen et al., 2017).For a discussion of genetic heterogeneity of GPI biosynthesis defects, see GPIBD1 (OMIM ).

GLYCOSYLPHOSPHATIDYLINOSITOL BIOSYNTHESIS DEFECT 15; GPIBD15 Is also known as developmental delay, epilepsy, cerebellar atrophy, and osteopenia

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

SOURCES: OMIM

Medium match AMINOACYLASE 1 DEFICIENCY; ACY1D

Aminoacylase-1 deficiency (ACY1D) is a rare autosomal recessive inborn error of metabolism characterized by increased urinary excretion of specific N-actyl amino acids. Most patients show neurologic abnormalities such as intellectual disability, seizures, hypotonia, and motor delay (summary by Ferri et al., 2014).

AMINOACYLASE 1 DEFICIENCY; ACY1D Is also known as ;acy1d; n-acyl-l-amino acid amidohydrolase deficiency

• Autosomal recessive inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia

SOURCES: EFO SCTID UMLS MESH GARD MONDO OMIM ORPHANET

Medium match HYPERPHOSPHATASIA WITH MENTAL RETARDATION SYNDROME 4; HPMRS4

Hyperphosphatasia with mental retardation syndrome-4 is an autosomal recessive neurologic disorder characterized by severely delayed psychomotor development, mental retardation, lack of speech acquisition, seizures, and dysmorphic facial features. Laboratory studies show increased serum alkaline phosphatase (summary by Howard et al., 2014). The disorder is caused by a defect in glycosylphosphatidylinositol (GPI) biosynthesis.For a discussion of genetic heterogeneity of HPMRS, see HPMRS1 (OMIM ).For a discussion of genetic heterogeneity of GPI biosynthesis defects, see GPIBD1 (OMIM ).

HYPERPHOSPHATASIA WITH MENTAL RETARDATION SYNDROME 4; HPMRS4 Is also known as glycosylphosphatidylinositol biosynthesis defect 10;gpibd10

• Autosomal recessive inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia

SOURCES: UMLS MONDO OMIM

Medium match SPASTIC PARAPLEGIA AND PSYCHOMOTOR RETARDATION WITH OR WITHOUT SEIZURES; SPPRS

Spastic paraplegia-severe developmental delay-epilepsy syndrome is a rare, genetic, complex spastic paraplegia disorder characterized by an infantile-onset of psychomotor developmental delay with severe intellectual disability and poor speech acquisition, associated with seizures (mostly myoclonic), muscular hypotonia which may be noted at birth, and slowly progressive spasticity in the lower limbs leading to severe gait disturbances. Ocular abnormalities and incontinence are commonly associated. Other symptoms may include verbal dyspraxia, hypogenitalism, macrocephaly and sensorineural hearing loss, as well as dystonic movements and ataxia with upper limb involvement.

SPASTIC PARAPLEGIA AND PSYCHOMOTOR RETARDATION WITH OR WITHOUT SEIZURES; SPPRS Is also known as ;spprs syndrome; spastic paraplegia-psychomotor retardation-seizures syndrome

• Autosomal recessive inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Short stature

SOURCES: MONDO OMIM ORPHANET UMLS

Medium match INTELLECTUAL DISABILITY-OBESITY-BRAIN MALFORMATIONS-FACIAL DYSMORPHISM SYNDROME

Intellectual disability-obesity-brain malformations-facial dysmorphism syndrome is a rare, syndromic intellectual disability primarily characterized by moderate to severe intellectual disability, true-to-relative microcephaly and brain abnormalities including a thin corpus callosum, cerebellar hypoplasia, cerebral white matter hypoplasia and multi-focal hyperintensity of cerebral white matter on MRI. Obesity and distinctive craniofacial dysmorphism (including brachycephaly, round face, straight eyebrows, synophrys, hypertelorism, epicanthus, wide and depressed nasal bridge, protruding ears with uplifted lobe, downslanting corners of the mouth) are additional features.

INTELLECTUAL DISABILITY-OBESITY-BRAIN MALFORMATIONS-FACIAL DYSMORPHISM SYNDROME Is also known as autosomal recessive intellectual disability due to trappc9 deficiency

• Seizures
• Global developmental delay
• Microcephaly
• Hypertelorism
• Muscular hypotonia

SOURCES: ORPHANET

Medium match KENNY-CAFFEY SYNDROME, TYPE 1; KCS1

An autosomal recessive form of Kenny-Caffey syndrome due to mutation(s) in the TBCE gene, encoding tubulin-specific chaperone E. This condition is characterized by hypoparathyroidism with hypocalcemia, marked growth retardation, craniofacial anomalies, absent diploic space in the skull, cortical thickening of long bones with medullary stenosis, and small hands and feet.

KENNY-CAFFEY SYNDROME, TYPE 1; KCS1 Is also known as kcs, kenny-caffey syndrome, autosomal recessive;

• Autosomal recessive inheritance
• Seizures
• Global developmental delay
• Microcephaly
• Hypertelorism

SOURCES: MESH OMIM MONDO NCIT GARD UMLS ORPHANET

Medium match MENTAL RETARDATION, AUTOSOMAL DOMINANT 13; MRD13

MRD13 is an autosomal dominant form of mental retardation associated with variable neuronal migration defects resulting in cortical malformations. More variable features include early-onset seizures and mild dysmorphic features. Some patients may also show signs of peripheral neuropathy, such as abnormal gait, hyporeflexia, and foot deformities (summary by Willemsen et al., 2012 and Poirier et al., 2013).

MENTAL RETARDATION, AUTOSOMAL DOMINANT 13; MRD13 Is also known as mental retardation, autosomal dominant 13, with neuronal migration defects

• Autosomal dominant inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Short stature

SOURCES: MONDO UMLS DOID OMIM

Medium match MENTAL RETARDATION, AUTOSOMAL DOMINANT 22; MRD22

Chromosome 1q43-q44 deletion syndrome is characterized by moderate to severe mental retardation, limited or no speech, and variable but characteristic facial features, including round face, prominent forehead, flat nasal bridge, hypertelorism, epicanthal folds, and low-set ears. Other features may include hypotonia, poor growth, microcephaly, agenesis of the corpus callosum, and seizures. The phenotype is variable, and not all features are observed in all patients, which may be explained in some cases by incomplete penetrance or variable expressivity (summary by Ballif et al., 2012).Patients with autosomal dominant mental retardation-22 have a phenotype similar to that in patients with chromosome 1q43-q44 deletion syndrome (de Munnik et al., 2014).

• Autosomal dominant inheritance
• Intellectual disability
• Seizures
• Global developmental delay
• Short stature

SOURCES: MESH MONDO OMIM DOID UMLS

Medium match DIABETES MELLITUS, TRANSIENT NEONATAL, 1

Neonatal diabetes mellitus (NDM), defined as insulin-requiring hyperglycemia within the first month of life, is a rare entity, with an estimated incidence of 1 in 400,000 neonates (Shield, 2000). In about half of the neonates, diabetes is transient and resolves at a median age of 3 months, whereas the rest have a permanent form of diabetes (OMIM ). In a significant number of patients with transient neonatal diabetes mellitus, type II diabetes appears later in life (Arthur et al., 1997).The major cause of transient neonatal diabetes (TND) is aberrant expression of imprinted genes at chromosome 6q24, associated in 20% of cases with DNA hypomethylation at the TND differentially methylated region (DMR), which lies within the imprinted promoter of the PLAGL1 gene ({603044}; Mackay et al., 2005). Over 50% of individuals with TND and hypomethylation at 6q24 also show mosaic DNA hypomethylation at other imprinted loci throughout the genome and a range of additional clinical features. Genetic Heterogeneity of Transient Neonatal DiabetesTNDM2 (OMIM ) is caused by mutation in the ABCC8 gene (OMIM ) on chromosome 11p15.1. TNDM3 (OMIM ) is caused by mutation in the KCNJ11 gene (OMIM ), also located on 11p15.1.

DIABETES MELLITUS, TRANSIENT NEONATAL, 1 Is also known as tndm1, tndm, dmtn;tndm

• Intellectual disability
• Seizures
• Global developmental delay
• Hearing impairment
• Hypertelorism

SOURCES: SCTID MESH MONDO OMIM UMLS ORPHANET