Delayed speech and language development, and Glaucoma

Low match MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH BRAIN AND EYE ANOMALIES), TYPE A, 9; MDDGA9

Congenital muscular dystrophy-dystroglycanopathy with brain and eye anomalies (type A) is an autosomal recessive disorder with characteristic brain and eye malformations, profound mental retardation, and congenital muscular dystrophy. The phenotype includes the alternative clinical designation Walker-Warburg syndrome (WWS), which is associated with death in infancy. The disorder represents the most severe end of a phenotypic spectrum of similar disorders resulting from defective glycosylation of alpha-dystroglycan (DAG1), collectively known as 'dystroglycanopathies' (summary by Geis et al., 2013 and Riemersma et al., 2015).For a general phenotypic description and a discussion of genetic heterogeneity of muscular dystrophy-dystroglycanopathy type A, see MDDGA1 (OMIM ).

MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH BRAIN AND EYE ANOMALIES), TYPE A, 9; MDDGA9 Is also known as walker-warburg syndrome or muscle-eye brain disease, dag1-related

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

SOURCES: MONDO UMLS OMIM

Low match SHORT STATURE, HEARING LOSS, RETINITIS PIGMENTOSA, AND DISTINCTIVE FACIES; SHRF

SHRF is an autosomal recessive disorder characterized by short stature, brachydactyly, dysmorphic facial features, hearing loss, and visual impairment. Onset of the hearing and visual abnormalities, including retinitis pigmentosa, varies from birth to the second decade. Patients have mild intellectual disability and mild cerebellar atrophy with myelination defects on brain imaging (summary by Di Donato et al., 2016).

SHORT STATURE, HEARING LOSS, RETINITIS PIGMENTOSA, AND DISTINCTIVE FACIES; SHRF Is also known as ;retinitis pigmentosa-deafness-premature aging-short stature-facial dysmorphism syndrome

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

SOURCES: OMIM ORPHANET

Low match CUTIS LAXA, AUTOSOMAL RECESSIVE, TYPE IIIB; ARCL3B

De Barsy syndrome, also known as autosomal recessive cutis laxa type III (ARCL3), is a rare autosomal recessive disorder characterized by an aged appearance with distinctive facial features, sparse hair, ophthalmologic abnormalities, intrauterine growth retardation (IUGR), and cutis laxa (summary by Lin et al., 2011).For a phenotypic description and a discussion of genetic heterogeneity of de Barsy syndrome, see {219150}.For a phenotypic description and a discussion of genetic heterogeneity of autosomal recessive cutis laxa, see {219200}.

CUTIS LAXA, AUTOSOMAL RECESSIVE, TYPE IIIB; ARCL3B Is also known as de barsy syndrome b;pycr1 deficiency; pyrroline-5-carboxylate reductase 1 deficiency

• Autosomal recessive inheritance
• Intellectual disability
• Hypertelorism
• Cryptorchidism
• Flexion contracture

SOURCES: OMIM ORPHANET MONDO DOID UMLS

Low match SHORT SYNDROME

'Short,' the mnemonic designation for this syndrome, is an acronym: S = stature; H = hyperextensibility of joints or hernia (inguinal) or both; O = ocular depression; R = Rieger anomaly; T = teething delay. The name was given by Gorlin (1975), who described the syndrome in 2 brothers.Dyment et al. (2013) noted that the features listed in the acronym for SHORT syndrome do not capture the full range of the clinical phenotype, which can include a recognizable facial gestalt consisting of triangular facies, lack of facial fat, and hypoplastic nasal alae with overhanging columella, as well as near-universal partial lipodystrophy, insulin resistance, nephrocalcinosis, and hearing deficits. Notably, both developmental milestones and cognition are normal for individuals with SHORT syndrome.

SHORT SYNDROME Is also known as short stature, hyperextensibility, hernia, ocular depression, rieger anomaly, and teething delay, lipodystrophy, partial, with rieger anomaly and short stature;aarskog-ose-pande syndrome; lipodystrophy-rieger anomaly-diabetes syndrome; rieger anomaly-partial lipodystrophy syndrome

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

SOURCES: OMIM GARD ORPHANET UMLS MESH MONDO

Low match MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH BRAIN AND EYE ANOMALIES), TYPE A, 4; MDDGA4

MDDGA4 is a severe autosomal recessive muscular dystrophy-dystroglycanopathy with characteristic brain and eye malformations, seizures, and mental retardation. Cardiac involvement in FCMD/MEB occurs in the second decade of life in those who survive. FKTN-related Walker-Warburg syndrome is a more severe manifestation of the disorder, with death usually in the first year of life. These entities are part of a group of similar disorders resulting from defective glycosylation of alpha-dystroglycan (DAG1 ), collectively known as 'dystroglycanopathies' (Godfrey et al., 2007; Muntoni and Voit, 2004; Muntoni et al., 2008).For a general phenotypic description and a discussion of genetic heterogeneity of muscular dystrophy-dystroglycanopathy type A, see MDDGA1 (OMIM ).

MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH BRAIN AND EYE ANOMALIES), TYPE A, 4; MDDGA4 Is also known as fukuyama congenital muscular dystrophy;fcmd, walker-warburg syndrome or muscle-eye-brain disease, fktn-related;fcmd; fukuyama congenital muscular dystrophy

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

SOURCES: MONDO UMLS SCTID ORPHANET DOID NCIT OMIM

Low match BARDET-BIEDL SYNDROME 1; BBS1

Bardet-Biedl syndrome is an autosomal recessive and genetically heterogeneous ciliopathy characterized by retinitis pigmentosa, obesity, kidney dysfunction, polydactyly, behavioral dysfunction, and hypogonadism (summary by Beales et al., 1999). Eight proteins implicated in the disorder assemble to form the BBSome, a stable complex involved in signaling receptor trafficking to and from cilia (summary by Scheidecker et al., 2014). Genetic Heterogeneity of Bardet-Biedl SyndromeBBS1 is caused by mutation in a gene on chromosome 11q13 (OMIM ); BBS2 (OMIM ), by mutation in a gene on 16q13 (OMIM ); BBS3 (OMIM ), by mutation in the ARL6 gene on 3q11 (OMIM ); BBS4 (OMIM ), by mutation in a gene on 15q22 (OMIM ); BBS5 (OMIM ), by mutation in a gene on 2q31 (OMIM ); BBS6 (OMIM ), by the MKKS gene on 20p12 (OMIM ), mutations in which also cause McKusick-Kaufman syndrome (OMIM ); BBS7 (OMIM ), by mutation in a gene on 4q27 (OMIM ); BBS8 (OMIM ), by mutation in the TTC8 gene on 14q32 (OMIM ); BBS9 (OMIM ), by mutation in a gene on 7p14 (OMIM ); BBS10 (OMIM ), by mutation in a gene on 12q (OMIM ); BBS11 (OMIM ), by mutation in the TRIM32 gene on 9q33 (OMIM ); BBS12 (OMIM ), by mutation in a gene on 4q27 (OMIM ); BBS13 (OMIM ), by mutation in the MKS1 gene (OMIM ) on 17q23, mutations in which also cause Meckel syndrome-1 (OMIM ); BBS14 (OMIM ), by mutation in the CEP290 gene (OMIM ) on 12q21, mutations in which also cause Meckel syndrome-4 (OMIM ) and several other disorders; BBS15 (OMIM ), by mutation in the C2ORF86 gene (OMIM ), which encodes a homolog of the Drosophila planar cell polarity gene 'fritz,' on 2p15; BBS16 (OMIM ), by mutation in the SDCCAG8 gene (OMIM ) on 1q43, mutations in which also cause Senior-Loken syndrome-7 (OMIM ); BBS17 (OMIM ), by mutation in the LZTFL1 gene (OMIM ) on 3p21; BBS18 (OMIM ), by mutation in the BBIP1 gene (OMIM ) on 10q25; BBS19 (OMIM ), by mutation in the IFT27 gene (OMIM ) on 22q12; BBS20 (OMIM ), by mutation in the IFT74 gene (OMIM ) on 9p21; and BBS21 (OMIM ), by mutation in the C8ORF37 gene (OMIM ).The CCDC28B gene (OMIM ) modifies the expression of BBS phenotypes in patients who have mutations in other genes. Mutations in MKS1, MKS3 (TMEM67 ), and C2ORF86 also modify the expression of BBS phenotypes in patients who have mutations in other genes.Although BBS had originally been thought to be a recessive disorder, Katsanis et al. (2001) demonstrated that clinical manifestation of some forms of Bardet-Biedl syndrome requires recessive mutations in 1 of the 6 loci plus an additional mutation in a second locus. While Katsanis et al. (2001) called this 'triallelic inheritance,' Burghes et al. (2001) suggested the term 'recessive inheritance with a modifier of penetrance.' Mykytyn et al. (2002) found no evidence of involvement of the common BBS1 mutation in triallelic inheritance. However, Fan et al. (2004) found heterozygosity in a mutation of the BBS3 gene ({608845.0002}) as an apparent modifier of the expression of homozygosity of the met390-to-arg mutation in the BBS1 gene ({209901.0001}).Allelic disorders include nonsyndromic forms of retinitis pigmentosa: RP51 (OMIM ), caused by TTC8 mutation, and RP55 (OMIM ), caused by ARL6 mutation.

• Autosomal recessive inheritance
• Intellectual disability
• Global developmental delay
• Pica
• Hearing impairment

SOURCES: OMIM UMLS DOID MESH MONDO GARD EFO

Low match RITSCHER-SCHINZEL SYNDROME 1; RTSC1

The 3C syndrome, also known as Ritscher-Schinzel syndrome, is a developmental malformation syndrome characterized by craniofacial abnormalities, congenital heart defects, and cerebellar brain malformations. Facial features include prominent occiput, prominent forehead, low-set ears, downslanting palpebral fissures, depressed nasal bridge, and micrognathia. Cardiac defects can include septal defects and aortic stenosis, among others, and brain imaging shows Dandy-Walker malformation, cerebellar vermis hypoplasia, posterior fossa cysts, and ventricular dilatation. Affected individuals have severe developmental delay (summary by Leonardi et al., 2001; Seidahmed et al., 2011). Genetic Heterogeneity of Ritscher-Schinzel SyndromeSee also RTSC2 (OMIM ), caused by mutation in the CCDC22 gene (OMIM ) on chromosome Xp11.

RITSCHER-SCHINZEL SYNDROME 1; RTSC1 Is also known as craniocerebellocardiac dysplasia, 3c syndrome, dandy-walker-like malformation with atrioventricular septal defect;craniocerebellocardiac dysplasia; ritscher-schinzel syndrome

• Autosomal recessive inheritance
• Intellectual disability
• Global developmental delay
• Short stature
• Generalized hypotonia

SOURCES: SCTID UMLS OMIM MONDO DOID ORPHANET

Low match ANTERIOR SEGMENT DYSGENESIS 7; ASGD7

Anterior segment dysgeneses (ASGD or ASMD) are a heterogeneous group of developmental disorders affecting the anterior segment of the eye, including the cornea, iris, lens, trabecular meshwork, and Schlemm canal. The clinical features of ASGD include iris hypoplasia, an enlarged or reduced corneal diameter, corneal vascularization and opacity, posterior embryotoxon, corectopia, polycoria, an abnormal iridocorneal angle, ectopia lentis, and anterior synechiae between the iris and posterior corneal surface (summary by Cheong et al., 2016).In sclerocornea there is congenital, nonprogressive corneal opacification that may be peripheral, sectoral, or central in location. Visual prognosis is related to the central corneal involvement. The cornea has a flat curvature. The majority of cases are bilateral (summary by Smith and Traboulsi, 2012).Isolated sclerocornea is caused by displacement of the limbal arcades and may be associated with cornea plana; in this condition, the anterior chamber is visible and the eye is not microphthalmic. In complex sclerocornea, however, corneal opacification is associated with microphthalmia, cataract, and/or infantile glaucoma. The central cornea is usually relatively clear, but the thickness is normal or increased, never reduced (summary by Nischal, 2007).

ANTERIOR SEGMENT DYSGENESIS 7; ASGD7 Is also known as corneal opacification with other ocular anomalies;copoa, sclerocornea with other ocular anomalies;ccmco

• Autosomal recessive inheritance
• Generalized hypotonia
• Motor delay
• Cataract
• Coma

SOURCES: OMIM UMLS MONDO DOID ORPHANET

Low match PIERSON SYNDROME

Pierson syndrome is an autosomal recessive disorder comprising congenital nephrotic syndrome with diffuse mesangial sclerosis and distinct ocular abnormalities, including microcoria and hypoplasia of the ciliary and pupillary muscles, as well as other anomalies. Many patients die early, and those who survive tend to show neurodevelopmental delay and visual loss (summary by Zenker et al., 2004).Mutations in the LAMB2 gene also cause nephrotic syndrome type 5 with or without mild ocular anomalies (NPHS5 ).

PIERSON SYNDROME Is also known as microcoria-congenital nephrotic syndrome;microcoria-congenital nephrosis syndrome

• Autosomal recessive inheritance
• Global developmental delay
• Generalized hypotonia
• Motor delay
• Muscular hypotonia

SOURCES: MONDO OMIM MESH SCTID DOID UMLS GARD NCIT ORPHANET

Low match CHARCOT-MARIE-TOOTH DISEASE, TYPE 4D; CMT4D

Charcot-Marie-Tooth disease type 4D (CMT4D) is an autosomal recessive disorder of the peripheral nervous system characterized by early-onset distal muscle weakness and atrophy, foot deformities, and sensory loss affecting all modalities. Affected individuals develop deafness by the third decade of life (summary by Okamoto et al., 2014).For a phenotypic description and a discussion of genetic heterogeneity of autosomal recessive Charcot-Marie-Tooth disease, see CMT4A (OMIM ).

CHARCOT-MARIE-TOOTH DISEASE, TYPE 4D; CMT4D Is also known as neuropathy, hereditary motor and sensory, lom type;hmsnl, charcot-marie-tooth disease, demyelinating, autosomal recessive, type 4d, charcot-marie-tooth neuropathy, type 4d, hmsn4d;cmt4d; hmsn, lom type; hmsn-lom; hereditary motor and sensory neuropathy, lom type

• Autosomal recessive inheritance
• Pica
• Hearing impairment
• Scoliosis
• Sensorineural hearing impairment

SOURCES: OMIM SCTID MESH DOID GARD MONDO ORPHANET UMLS