Delayed speech and language development, and Renal cyst

Low match NEPHRONOPHTHISIS 20; NPHP20

Nephronophthisis-20 is an autosomal recessive tubulointerstitial nephritis characterized by progressive renal fibrosis resulting in end-stage renal failure. The age at onset is relatively late compared to other forms of NPHP, and patients develop end-stage renal disease in the second or third decades. Unlike most other forms of NPHP, NPHP20 does not have features of a ciliopathy and patients do not appear to have extrarenal manifestations (summary by Macia et al., 2017).For a general phenotypic description and a discussion of genetic heterogeneity of nephronophthisis, see NPHP1 (OMIM ).

• Autosomal recessive inheritance
• Short stature
• Scoliosis
• Abnormal facial shape
• Rod-cone dystrophy

SOURCES: OMIM DOID MONDO UMLS

Low match JOUBERT SYNDROME 20; JBTS20

• Autosomal recessive inheritance
• Global developmental delay
• Respiratory insufficiency
• Syndactyly
• Congenital onset

SOURCES: DOID OMIM UMLS MONDO

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 RETINITIS PIGMENTOSA WITH OR WITHOUT SKELETAL ANOMALIES; RPSKA

RETINITIS PIGMENTOSA WITH OR WITHOUT SKELETAL ANOMALIES; RPSKA Is also known as metaphyseal chondrodysplasia with retinitis pigmentosa;

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

SOURCES: MONDO MESH OMIM ORPHANET UMLS

Low match JOUBERT SYNDROME 14; JBTS14

Joubert syndrome-14 is an autosomal recessive developmental disorder characterized by severe mental retardation, hypoplasia of the cerebellar vermis and molar tooth sign (MTS) on brain imaging, hypotonia, abnormal breathing pattern in infancy, and dysmorphic facial features. Additional findings can include renal cysts, abnormal eye movements, and postaxial polydactyly (summary by Boycott et al., 2007 and Huang et al., 2011).For a phenotypic description and a discussion of genetic heterogeneity of Joubert syndrome, see {213300}.

• Autosomal recessive inheritance
• Global developmental delay
• Generalized hypotonia
• Pica
• Hypertelorism

SOURCES: DOID UMLS OMIM MONDO

Low match CHROMOSOME 17q12 DELETION SYNDROME

17q12 microdeletion syndrome is a rare chromosomal anomaly syndrome resulting from the partial deletion of the long arm of chromosome 17 characterized by renal cystic disease, maturity onset diabetes of the young type 5, and neurodevelopmental disorders, such as cognitive impairment, developmental delay (particularly of speech), autistic traits and autism spectrum disorder. Müllerian aplasia in females, macrocephaly, mild facial dysmorphism (high forehead, deep set eyes and chubby cheeks) and transient hypercalcaemia have also been reported.

CHROMOSOME 17q12 DELETION SYNDROME Is also known as ;del(17)(q12); monosomy 17q12

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

SOURCES: UMLS DOID ORPHANET MONDO GARD OMIM

Low match PEROXISOME BIOGENESIS DISORDER 1B; PBD1B

Peroxisome biogenesis disorder-1B (PBD1B) is characterized by the overlapping phenotypes of neonatal adrenoleukodystrophy (NALD) and infantile Refsum disease (IRD), which represent the milder manifestations of the Zellweger syndrome spectrum (ZSS) of peroxisome biogenesis disorders (PBDs). Initial presentation and natural history varies, with many children presenting as newborns, whereas others do not come to attention until later. Most affected children have hypotonia, but unlike Zellweger syndrome (see PBD1A, {214100}) there is a degree of psychomotor development, and some patients achieve head control, sit unsupported, and may even walk independently. Many can communicate, and although language is rare, there have been children who have near normal language for age. Craniofacial anomalies are similar to but less pronounced than in Zellweger syndrome. In some individuals a leukodystrophy develops, with degeneration of myelin, loss of previously acquired skills, and development of spasticity; this may stabilize, or progress and be fatal. In PBD1B, the most common manifestations that are less apparent in ZS are sensorineural hearing loss and retinitis pigmentosa (summary by Steinberg et al., 2006). While Zellweger syndrome usually results in death in the first year of life, children with the NALD presentation may reach their teens, and those with the IRD presentation may reach adulthood (summary by Waterham and Ebberink, 2012).Individuals with mutations in the PEX1 gene have cells of complementation group 1 (CG1, equivalent to CGE). For information on the history of PBD complementation groups, see {214100}. Genetic Heterogeneity of Peroxisome Biogenesis Disorder NALD/IRDThe phenotypic spectrum of NALD/IRD peroxisome biogenesis disorders can be caused by mutation in members of the peroxin (PEX) gene family. The PEX genes encode proteins essential for the assembly of functional peroxisomes (summary by Distel et al., 1996). PBD1B is caused by mutation in the PEX1 gene on chromosome 7q21; PBD2B (OMIM ) is caused by mutation in the PEX5 gene (OMIM ) on chromosome 12p13.3; PBD3B (OMIM ) is caused by mutation in the PEX12 gene (OMIM ) on chromosome 17; PBD4B (OMIM ) is caused by mutation in the PEX6 gene (OMIM ) on chromosome 6p21.1; PBD5B (OMIM ) is caused by mutation in the PEX2 gene (OMIM ) on chromosome 8q21.1; PBD6B (OMIM ) is caused by mutation in the PEX10 gene (OMIM ) on chromosome 1p36.32; PBD7B (OMIM )is caused by mutation in the PEX26 gene (OMIM ) on chromosome 22q11.21; PBD8B (OMIM ) is caused by mutation in the PEX16 gene (OMIM ) on chromosome 11p11; PDB10B (OMIM ) is caused by mutation in the PEX3 gene (OMIM ) on chromosome 6q24; and PBD11B (OMIM ) is caused by mutation in the PEX13 gene (OMIM ) on chromosome 2p15.See PBD1A (OMIM ) for a phenotypic description and a discussion of genetic heterogeneity of Zellweger syndrome, which is also caused by mutation in peroxin genes. The rhizomelic chondrodysplasia subtype of PBD (RCDP1, PBD9; {215100}), and a mild PBD without rhizomelia (PBD9B ), are caused by mutation in the PEX7 gene (OMIM ) on chromosome 6q23.

PEROXISOME BIOGENESIS DISORDER 1B; PBD1B Is also known as peroxisome biogenesis disorder (neonatal adrenoleukodystrophy/infantile refsum disease), peroxisome biogenesis disorder (nald/ird), adrenoleukodystrophy, autosomal neonatal, refsum disease, infantile, infantile phytanic acid storage disease;ird

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

SOURCES: ORPHANET OMIM

Low match DEAFNESS, ONYCHODYSTROPHY, OSTEODYSTROPHY, MENTAL RETARDATION, AND SEIZURES SYNDROME; DOORS

The DOOR syndrome is an acronym for deafness, onychodystrophy, osteodystrophy, and mental retardation. Cantwell (1975) suggested this designation for the disorder, which can also include triphalangeal thumbs, seizures, and abnormal dermatoglyphics. Inheritance is autosomal recessive.See also DDOD syndrome (OMIM ), which shows autosomal dominant inheritance of congenital deafness and onychodystrophy without mental retardation.

DEAFNESS, ONYCHODYSTROPHY, OSTEODYSTROPHY, MENTAL RETARDATION, AND SEIZURES SYNDROME; DOORS Is also known as door syndrome, digitorenocerebral syndrome, drc syndrome, brachydactyly due to absence of distal phalanges, eronen syndrome

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

SOURCES: MONDO OMIM GARD MESH

Low match MULTIPLE CONGENITAL ANOMALIES-HYPOTONIA-SEIZURES SYNDROME 3; MCAHS3

Intellectual disability-seizures-hypotonia-ophthalmologic-skeletal anomalies syndrome is a rare congenital disorder of glycosylation characterized by neonatal hypotonia, global development delay, developmental regress and severe to profound intellectual disability, infantile onset seizures that are initially associated with febrile episodes with subsequent transition to unprovoked seizures, impaired vision with esotropia and nystagmus, progressive cerebral and cerebellar atrophy, skeletal abnormalities (including brachycephaly, scoliosis, slender long bones, delayed bone age, pectus excavatum and osteopenia), inverted nipples and dysmorphic features including high and narrow forehead, frontal bossing, short nose, depressed nasal bridge, anteverted nares, high palate and wide open mouth consistent with facial hypotonia. Other features may include cardiac abnormalities (such as patent ductus arteriosus, atrial septal defects), urogenital abnormalities (such as nephrocalcinosis, urolithiasis), and low plasma concentration of alkaline phosphatase.

MULTIPLE CONGENITAL ANOMALIES-HYPOTONIA-SEIZURES SYNDROME 3; MCAHS3 Is also known as glycosylphosphatidylinositol biosynthesis defect 7;gpibd7;congenital disorder of glycosylation due to pigt deficiency; mcahs type 3; multiple congenital anomalies-hypotonia-seizures syndrome type 3; pigt-cdg

• Autosomal recessive inheritance
• Seizures
• Global developmental delay
• Generalized hypotonia
• Scoliosis

SOURCES: MONDO DOID ORPHANET OMIM UMLS

Low match JOUBERT SYNDROME 1; JBTS1

Joubert syndrome is a clinically and genetically heterogeneous group of disorders characterized by hypoplasia of the cerebellar vermis with the characteristic neuroradiologic 'molar tooth sign,' and accompanying neurologic symptoms, including dysregulation of breathing pattern and developmental delay. Other variable features include retinal dystrophy and renal anomalies (Saraiva and Baraitser, 1992; Valente et al., 2005). Genetic Heterogeneity of Joubert SyndromeSee also JBTS2 (OMIM ), caused by mutation in the TMEM216 gene (OMIM ) on chromosome 11q13; JBTS3 (OMIM ), caused by mutation in the AHI1 gene (OMIM ) on chromosome 6q23; JBTS4 (OMIM ), caused by mutation in the NPHP1 gene (OMIM ) on chromosome 2q13; JBTS5 (OMIM ), caused by mutation in the CEP290 gene, also called NPHP6 (OMIM ), on chromosome 12q21.32; JBTS6 (OMIM ), caused by mutation in the TMEM67 gene (OMIM ) on chromosome 8q21; JBTS7 (OMIM ), caused by mutation in the RPGRIP1L gene (OMIM ) on chromosome 16q12.2; JBTS8 (OMIM ), caused by mutation in the ARL13B (OMIM ) on chromosome 3q11.2; JBTS9 (OMIM ), caused by mutation in the CC2D2A gene (OMIM ) on chromosome 4p15.3; JBTS10 (OMIM ), caused by mutation in the CXORF5 gene (OMIM ) on chromosome Xp22.3; JBTS11 (see {613820}), caused by mutation in the TTC21B gene (OMIM ) on chromosome 2q24; JBTS12 (see {200990}), caused by mutation in the KIF7 gene (OMIM ) on chromosome 15q26; JBTS13 (OMIM ), caused by mutation in the TCTN1 gene (OMIM ) on chromosome 12q24; JBTS14 (OMIM ), caused by mutation in the TMEM237 gene (OMIM ) on chromosome 2q33; JBTS15 (OMIM ), caused by mutation in the CEP41 gene (OMIM ) on chromosome 7q32; JBTS16 (OMIM ), caused by mutation in the TMEM138 gene (OMIM ) on chromosome 11q; JBTS17 (OMIM ), caused by mutation in the C5ORF42 gene (OMIM ) on chromosome 5p13; JBTS18 (OMIM ), caused by mutation in the TCTN3 gene (OMIM ) on chromosome 10q24; JBTS19 (see {614844}), caused by mutation in the ZNF423 gene (OMIM ) on chromosome 16q12; JBTS20 (OMIM ), caused by mutation in the TMEM231 gene (OMIM ) on chromosome 16q23; JBTS21 (OMIM ), caused by mutation in the CSPP1 gene (OMIM ) on chromosome 8q13; JBTS22 (OMIM ), caused by mutation in the PDE6D gene (OMIM ) on chromosome 2q37; JBTS23 (OMIM ), caused by mutation in the KIAA0586 gene (OMIM ) on chromosome 14q23; JBTS24 (OMIM ), caused by mutation in the TCTN2 gene (OMIM ) on chromosome 12q24; JBTS25 (OMIM ), caused by mutation in the CEP104 gene (OMIM ) on chromosome 1p36; JBTS26 (OMIM ), caused by mutation in the KIAA0556 gene (OMIM ) on chromosome 16p12; JBTS27 (OMIM ), caused by mutation in the B9D1 gene (OMIM ) on chromosome 17p11; JBTS28 (OMIM ), caused by mutation in the MKS1 gene (OMIM ) on chromosome 17q23; JBTS29 (see {617562}), caused by mutation in the TMEM107 gene (OMIM ) on chromosome 17p13; JBTS30 (OMIM ), caused by mutation in the ARMC9 gene (OMIM ) on chromosome 2q37; JBTS31 (OMIM ), caused by mutation in the CEP120 gene (OMIM ) on chromosome 5q23; JBTS32 (OMIM ), caused by mutation in the SUFU gene (OMIM ) on chromosome 10q24; and JBTS33 (OMIM ), caused by mutation in the PIBF1 gene (OMIM ) on chromosome 13q21.

JOUBERT SYNDROME 1; JBTS1 Is also known as joubert syndrome;jbts, joubert-boltshauser syndrome, cerebelloparenchymal disorder iv;cpd4, cerebellooculorenal syndrome 1;cors1;cpd iv; cerebelloparenchymal disorder iv; classic joubert syndrome; joubert syndrome type a; joubert-boltshauser syndrome; pure joubert syndrome

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

SOURCES: OMIM SCTID MONDO ORPHANET DOID