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Items: 12

1.

Nance-Horan syndrome

Nance-Horan syndrome (NHS) is an X-linked disorder characterized by congenital cataracts, dental anomalies, dysmorphic features, and, in some cases, mental retardation (summary by Burdon et al., 2003). [from OMIM]

MedGen UID:
208665
Concept ID:
C0796085
Disease or Syndrome
2.

Severe intellectual disability-progressive spastic diplegia syndrome

CTNNB1 neurodevelopmental disorder (CTNNB1-NDD) is characterized in all individuals by mild-to-profound cognitive impairment and in up to 39% of reported individuals by exudative vitreoretinopathy, an ophthalmologic finding consistent with familial exudative vitreoretinopathy (FEVR). Other common findings include truncal hypotonia, peripheral spasticity, dystonia, behavior problems, microcephaly, and refractive errors and strabismus. Less common features include intrauterine growth restriction, feeding difficulties, and scoliosis. [from GeneReviews]

MedGen UID:
767363
Concept ID:
C3554449
Disease or Syndrome
3.

Acromesomelic dysplasia 1, Maroteaux type

The acromesomelic dysplasias are disorders in which there is disproportionate shortening of skeletal elements, predominantly affecting the middle segments (forearms and forelegs) and distal segments (hands and feet) of the appendicular skeleton. Acromesomelic dysplasia-1 (AMD1) is characterized by severe dwarfism (height below 120 cm) with shortening of the middle and distal segments of the limbs. This condition is usually diagnosed at birth and becomes more obvious in the first 2 years of life. X-rays show short broad fingers, square flat feet, and shortening of the long bones (particularly the forearms). The radius is bowed; the ulna is shorter than the radius, and its distal end is occasionally hypoplastic. The skull is dolichocephalic and a shortness of the trunk, with decreased vertebral height and narrowing of the lumbar interpedicular distances, is consistently observed. Facial appearance and intelligence are normal (summary by Faivre et al., 2000). Genetic Heterogeneity of Acromesomelic Dysplasia Additional autosomal recessive forms of acromesomelic dysplasia include acromesomelic dysplasia-2A (200700), -2B (228900), and -2C (201250), all caused by mutation in the GDF5 gene (601146) on chromosome 20q11; AMD3 (200700), caused by mutation in the BMPR1B gene (603248) on chromosome 4q22; and AMD4 (619636), caused by mutation in the PRKG2 gene (601591) on chromosome 4q21. An autosomal dominant form of acromesomelic dysplasia has also been reported (see 112910). [from OMIM]

MedGen UID:
355199
Concept ID:
C1864356
Disease or Syndrome
4.

Hypotonia, infantile, with psychomotor retardation and characteristic facies 3

Infantile hypotonia with psychomotor retardation and characteristic facies-3 is a severe autosomal recessive neurodevelopmental disorder with onset at birth or in early infancy. Most affected individuals show very poor, if any, normal psychomotor development, poor speech, and inability to walk independently (summary by Bhoj et al., 2016). For a general phenotypic description and a discussion of genetic heterogeneity of infantile hypotonia with psychomotor retardation and characteristic facies, see IHPRF1 (615419). [from OMIM]

MedGen UID:
1798903
Concept ID:
C5567480
Disease or Syndrome
5.
6.

Chilton-Okur-Chung neurodevelopmental syndrome

Chilton-Okur-Chung neurodevelopmental syndrome (CHOCNS) is characterized mainly by global developmental delay with variably impaired intellectual development and occasional speech delay. Most patients have behavioral abnormalities, including autism spectrum disorder, ADHD, and aggression. About half of patients have dysmorphic facial features, and about half have nonspecific brain abnormalities, including thin corpus callosum. Rare involvement of other organ systems may be present. At least 1 child with normal development at age 2.5 years has been reported (Chilton et al., 2020). [from OMIM]

MedGen UID:
1803276
Concept ID:
C5677022
Disease or Syndrome
7.

Osebold-Remondini syndrome

The Osebold-Remondini syndrome is a bone dysplasia with mesomelic shortness of limbs and, hence, shortness of stature, absence or hypoplasia of second phalanges with synostosis of the remaining phalanges, carpal and tarsal coalitions, and apparently no other anomalies (summary by Opitz and Gilbert, 1985). See 602875 for a discussion of genetic heterogeneity of autosomal recessive acromesomelic dysplasia. [from OMIM]

MedGen UID:
350598
Concept ID:
C1862130
Disease or Syndrome
8.

Moyamoya angiopathy-short stature-facial dysmorphism-hypergonadotropic hypogonadism syndrome

This multisystem disorder is characterized by moyamoya disease, short stature, hypergonadotropic hypogonadism, and facial dysmorphism. Other variable features include dilated cardiomyopathy, premature graying of the hair, and early-onset cataracts. Moyamoya disease is a progressive cerebrovascular disorder characterized by stenosis or occlusion of the internal carotid arteries and the main branches, leading to the development of small collateral vessels (moyamoya vessels) at the base of the brain. Affected individuals can develop acute neurologic events due to stroke-like episodes (summary by Miskinyte et al., 2011). For a general phenotypic description and a discussion of genetic heterogeneity of moyamoya disease, see MYMY1 (252350). [from OMIM]

MedGen UID:
463207
Concept ID:
C3151857
Disease or Syndrome
9.

Acromesomelic dysplasia 4

Acromesomelic dysplasia-4 (AMD4) is characterized by disproportionate short stature due to mesomelic shortening of the limbs. Radiographic hallmarks include mild to moderate platyspondyly, moderate brachydactyly, iliac flaring, and metaphyseal alterations of the long bones that progressively increase with age (Diaz-Gonzalez et al., 2022). For a discussion of genetic heterogeneity of acromesomelic dysplasia, see AMD1 (602875). [from OMIM]

MedGen UID:
1794238
Concept ID:
C5562028
Disease or Syndrome
10.

Neurodevelopmental disorder with midbrain and hindbrain malformations

Neurodevelopmental disorder with midbrain and hindbrain malformations (NEDMHM) is an autosomal recessive disorder comprising impaired intellectual development, speech delay, mild microcephaly, and midbrain-hindbrain malformation (Ravindran et al., 2017). [from OMIM]

MedGen UID:
1385580
Concept ID:
C4479613
Disease or Syndrome
11.
12.

Broad finger

Increased width of a non-thumb digit of the hand. [from HPO]

MedGen UID:
375540
Concept ID:
C1844906
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