Global developmental delay, and Atopic dermatitis

Aicardi-Goutieres syndrome-7 is an autosomal dominant inflammatory disorder characterized by severe neurologic impairment. Most patients present in infancy with delayed psychomotor development, axial hypotonia, spasticity, and brain imaging changes, including basal ganglia calcification, cerebral atrophy, and deep white matter abnormalities. Laboratory evaluation shows increased alpha-interferon (IFNA1 ) activity with upregulation of interferon signaling and interferon-stimulated gene expression. Some patients may have normal early development followed by episodic neurologic regression (summary by Rice et al., 2014).For a phenotypic description and a discussion of genetic heterogeneity of Aicardi-Goutieres syndrome, see AGS1 (OMIM ).

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

SOURCES: OMIM MENDELIAN

Netherton syndrome (NS) is a skin disorder characterized by congenital ichthyosiform erythroderma (CIE), a distinctive hair shaft defect (trichorrhexis invaginata; TI) and atopic manifestations.

NETHERTON SYNDROME Is also known as erythroderma, ichthyosiform, with hypotrichosis and hyper-ige|comÈl-netherton syndrome|bamboo hair syndrome|comel-netherton syndrome|ns|netherton disease

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Growth delay

SOURCES: OMIM MESH ORPHANET MENDELIAN

PGM3-CDG is a rare congenital disorder of glycosylation caused by mutations in the PGM3 gene and characterized by neonatal to childhood onset of recurrent bacterial and viral infections, inflammatory skin diseases, atopic dermatitis and atopic diatheses, and marked serum IgE elevation. Early neurologic impairment is evident including developmental delay, intellectual disability, ataxia, dysarthria, sensorineural hearing loss, myoclonus and seizures.

PGM3-CDG Is also known as cid due to pgm3 deficiency|immunodeficiency with hyper ige and cognitive impairment|pgm3-related congenital disorder of glycosylation|combined immunodeficiency due to pgm3 deficiency|immunodeficiency-vasculitis-myoclonus syndrome|ivms

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia

SOURCES: OMIM ORPHANET MENDELIAN

EVEN-PLUS syndrome is characterized by prenatal-onset short stature, vertebral and epiphyseal changes, microtia, midface hypoplasia with flat nose and triangular nares, cardiac malformations, and other findings including anal atresia, hypodontia, and aplasia cutis. The features overlap those reported in patients with CODAS syndrome ({600373}; Royer-Bertrand et al., 2015).

EVEN-PLUS SYNDROME Is also known as epiphysial-vertebral-ear dysplasia-nose-plus associated findings syndrome|epiphyseal and vertebral dysplasia, microtia, and flat nose, plus associated malformations

• Intellectual disability
• Global developmental delay
• Short stature
• Generalized hypotonia
• Growth delay

SOURCES: ORPHANET OMIM MENDELIAN

Noonan-like syndrome with loose anagen hair (NS/LAH) is a Noonan-related syndrome, characterized by facial anomalies suggestive of Noonan syndrome (see this term); a distinctive hair anomaly described as loose anagen hair syndrome (see this term); frequent congenital heart defects; distinctive skin features with darkly pigmented skin, keratosis pilaris, eczema or occasional neonatal ichtyosis (see this term); and short stature, often associated with a GH deficiency and psychomotor delays.

NOONAN SYNDROME-LIKE DISORDER WITH LOOSE ANAGEN HAIR Is also known as ns/lah|tosti syndrome

• Intellectual disability
• Global developmental delay
• Short stature
• Generalized hypotonia
• Hearing impairment

SOURCES: OMIM ORPHANET MENDELIAN

MELAS (Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke) syndrome is a rare progressive multisystemic disorder characterized by encephalomyopathy, lactic acidosis, and stroke-like episodes. Other features include endocrinopathy, heart disease, diabetes, hearing loss, and neurological and psychiatric manifestations.

MELAS Is also known as mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes|melas syndrome|mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Hearing impairment

SOURCES: ORPHANET OMIM MESH MENDELIAN

Cardiofaciocutaneous (CFC) syndrome is a RASopathy characterized by craniofacial dysmorphology, congenital heart disease, dermatological abnormalities (most commonly hyperkeratotic skin and sparse, curly hair), growth retardation and intellectual disability.

CARDIOFACIOCUTANEOUS SYNDROME Is also known as cfcs|cfc syndrome

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia

SOURCES: ORPHANET OMIM MENDELIAN

IMDDHH is a multisystem disorder characterized by immunodeficiency, mildly delayed psychomotor development, poor overall growth from infancy, and hypohomocysteinemia. Additional features, such as congenital heart defects and liver involvement, are more variable (summary by Huppke et al., 2017).

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Growth delay

SOURCES: OMIM MENDELIAN

Proteasome-associated autoinflammatory syndrome-2 is an autosomal dominant disorder with onset in early infancy. Affected individuals develop severe inflammatory neutrophilic dermatitis, autoimmunity, and variable immunodeficiency (summary by Poli et al., 2018).For a discussion of genetic heterogeneity of PRAAS, see PRAAS1 (OMIM ).

• Seizures
• Global developmental delay
• Short stature
• Brachydactyly
• Fever

SOURCES: OMIM MENDELIAN

MGRISCE2 is an autosomal recessive disorder characterized by intrauterine growth restriction, poor postnatal growth with short stature and microcephaly, and increased sister chromatid exchange on cell studies. The disorder results from defective DNA decatenation. The pathogenesis of the disorder is similar to that of Bloom syndrome (BLM ), but patients with mutations in the TOP3A gene do not have a malar rash (summary by Martin et al., 2018).For a discussion of genetic heterogeneity of MGRISCE, see Bloom syndrome (BLM; MGRISCE1; {210900})

• Global developmental delay
• Short stature
• Microcephaly
• Growth delay
• Abnormal facial shape

SOURCES: OMIM MENDELIAN