Intellectual disability, and Skin rash

NLRP12-associated hereditary periodic fever syndrome is a rare autoinflammatory syndrome characterized by episodic and recurrent periods of fever combined with various systemic manifestations such as myalgia, arthralgia, joint swelling, urticaria, headache and skin rash. Common trigger of these episodes is cold.

NLRP12-ASSOCIATED HEREDITARY PERIODIC FEVER SYNDROME Is also known as familial cold autoinflammatory syndrome type 2|naps12|fcas2

• Intellectual disability
• Hearing impairment
• Sensorineural hearing impairment
• Pain
• Fever

SOURCES: OMIM ORPHANET MESH MENDELIAN

Familial hypertryptophanemia is characterized by intellectual deficit associated with behavioral problems: periodic mood swings, exaggerated affective responses and abnormal sexual behavior. Twelve cases have been reported so far. Congenital abnormalities in tryptophan metabolism appear to be responsible for the tryptophanemia and tryptophanuria.

HYPERTRYPTOPHANEMIA Is also known as hypertryptophanemia, familial

• Intellectual disability
• Global developmental delay
• Hypertelorism
• Strabismus
• Sensorineural hearing impairment

SOURCES: ORPHANET MESH OMIM MENDELIAN

The erythrokeratodermias are a clinically variable and genetically heterogeneous group of inherited disorders characterized by widespread erythematous plaques, stationary or migratory, associated with nonmigratory hyperkeratoses (summary by Ishida-Yamamoto et al., 1997). The condition is usually present at birth or occurs during the first year but may begin later in childhood or even in early adulthood. Lesions preferentially affect the face, buttocks, and extensor surfaces of the limbs. Palmoplantar keratoderma occurs in about half the cases, but hair, nails, and teeth are not affected (summary by Macfarlane et al., 1991). Genetic Heterogeneity of Erythrokeratodermia Variabilis et ProgressivaSee EKVP2 (OMIM ), caused by mutation in the GJB4 gene (OMIM ); EKVP3 (OMIM ), caused by mutation in the GJA1 gene (OMIM ); EKVP4 (OMIM ), caused by mutation in the KDSR gene (OMIM ); and EKVP5 (OMIM ), caused by mutation in the KRT83 gene (OMIM ).

ERYTHROKERATODERMIA VARIABILIS Is also known as psek|erythrokeratodermia variabilis et progressiva|ekvp|ekv|erythrokeratodermia variabilis, mendes da costa type|erythrokeratodermia figurata, congenital familial, in plaques|erythrokeratodermia, progressive symmetric|erythrokeratodermia variabilis with e

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

SOURCES: OMIM ORPHANET MENDELIAN

cblF type methylmalonic acidemia with homocystinuria is a form of methylmalonic acidemia with homocystinuria (see this term), an inborn error of vitamin B12 (cobalamin) metabolism characterized by megaloblastic anemia, lethargy, failure to thrive, developmental delay, intellectual deficit and seizures.

METHYLMALONIC ACIDEMIA WITH HOMOCYSTINURIA TYPE CBLF Is also known as cobalamin, defect in lysosomal release of|cobalamin f defect|combined defect in adenosylcobalamin and methylcobalamin synthesis, type cblf|cblf|vitamin b12 storage disease|vitamin b12 lysosomal release defect|methylmalonic aciduria due to vitamin b12-rele

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

SOURCES: ORPHANET MESH OMIM MENDELIAN

Xeroderma pigmentosum/Cockayne syndrome complex (XP/CS complex) is characterized by the cutaneous features of xeroderma pigmentosum (XP) (see this term) together with the systemic and neurological features of Cockayne syndrome (CS; see this term).

XERODERMA PIGMENTOSUM-COCKAYNE SYNDROME COMPLEX Is also known as xp/cs complex

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

SOURCES: ORPHANET MENDELIAN

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

Hailey-Hailey disease, also known as benign chronic pemphigus, is a rare autosomal dominant cutaneous disorder that usually becomes manifest in the third or fourth decade of life with erythema, vesicles, and erosions involving the body folds, particularly the groin and axillary regions. Other sites of the body, such as the neck, perianal, and submammary regions, may likewise be affected (summary by Poblete-Gutierrez et al., 2004).This disorder was first described by the dermatologist brothers Hailey and Hailey (1939).

BENIGN CHRONIC PEMPHIGUS; BCPM Is also known as hhd|hailey-hailey disease|pemphigus, benign familial

• Intellectual disability
• Short stature
• Growth delay
• Neoplasm
• Pain

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

Al Kaissi syndrome is an autosomal recessive developmental disorder characterized by growth retardation, spine malformation, particularly of the cervical spine, dysmorphic facial features, and delayed psychomotor development with moderate to severe intellectual disability (summary by Windpassinger et al., 2017).

AL KAISSI SYNDROME; ALKAS Is also known as growth retardation, spine malformation, dysmorphic facies, and developmental delay

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

SOURCES: OMIM MENDELIAN

Nakajo-Nishimura syndrome (NNS) is a rare autoinflammatory disorder belonging to the proteasome disability syndrome (see this term) group, and characterized by pernio-like lesions appearing in infancy followed by recurrent fever, nodular skin eruption, partial lipodystrophy (mainly in upper extremities and face) and joint contractures.

NAKAJO-NISHIMURA SYNDROME Is also known as nns|secondary hypertrophic osteoperiostosis with pernio|amyotrophy-fat tissue anomaly syndrome

• Muscle weakness
• Hepatomegaly
• Fever
• Skeletal muscle atrophy
• Respiratory insufficiency

SOURCES: ORPHANET MENDELIAN