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Items: 20

1.

4p partial monosomy syndrome

Wolf-Hirschhorn syndrome is a congenital malformation syndrome characterized by pre- and postnatal growth deficiency, developmental disability of variable degree, characteristic craniofacial features ('Greek warrior helmet' appearance of the nose, high forehead, prominent glabella, hypertelorism, high-arched eyebrows, protruding eyes, epicanthal folds, short philtrum, distinct mouth with downturned corners, and micrognathia), and a seizure disorder (Battaglia et al., 2008). [from OMIM]

MedGen UID:
408255
Concept ID:
C1956097
Disease or Syndrome
2.

Frontonasal dysplasia - severe microphthalmia - severe facial clefting syndrome

Frontonasal dysplasia is a condition that results from abnormal development of the head and face before birth. People with frontonasal dysplasia have at least two of the following features: widely spaced eyes (ocular hypertelorism); a broad nose; a slit (cleft) in one or both sides of the nose; no nasal tip; a central cleft involving the nose, upper lip, or roof of the mouth (palate); incomplete formation of the front of the skull with skin covering the head where bone should be (anterior cranium bifidum occultum); or a widow's peak hairline.

Other features of frontonasal dysplasia can include additional facial malformations, absence or malformation of the tissue that connects the left and right halves of the brain (the corpus callosum), and intellectual disability.

Life expectancy of affected individuals depends on the severity of the malformations and whether or not surgical intervention can improve associated health problems, such as breathing and feeding problems caused by the facial clefts.

There are at least three types of frontonasal dysplasia that are distinguished by their genetic causes and their signs and symptoms. In addition to the features previously described, each type of frontonasal dysplasia is associated with other distinctive features. Individuals with frontonasal dysplasia type 1 typically have abnormalities of the nose, a long area between the nose and upper lip (philtrum), and droopy upper eyelids (ptosis). Individuals with frontonasal dysplasia type 2 can have hair loss (alopecia) and an enlarged opening in the two bones that make up much of the top and sides of the skull (enlarged parietal foramina). Males with this form of the condition often have genital abnormalities. Features of frontonasal dysplasia type 3 include eyes that are missing (anophthalmia) or very small (microphthalmia) and low-set ears that are rotated backward. Frontonasal dysplasia type 3 is typically associated with the most severe facial abnormalities, but the severity of the condition varies widely, even among individuals with the same type. [from MedlinePlus Genetics]

MedGen UID:
462056
Concept ID:
C3150706
Disease or Syndrome
3.

Short stature-optic atrophy-Pelger-HuC+t anomaly syndrome

Among the Yakuts, an Asian population isolate that is located in the northeastern part of Siberia, Maksimova et al. (2010) ascertained an autosomal recessive short stature syndrome involving postnatal growth failure, small hands and feet, loss of visual acuity with abnormalities of color vision, abnormal nuclear shape in neutrophil granulocytes (Pelger-Huet anomaly; see 169400), and normal intelligence. [from OMIM]

MedGen UID:
762020
Concept ID:
C3541319
Disease or Syndrome
4.

Galloway-Mowat syndrome 4

Galloway-Mowat syndrome is a renal-neurologic disease characterized by early-onset nephrotic syndrome associated with microcephaly, gyral abnormalities, and delayed psychomotor development. Most patients have dysmorphic facial features, often including hypertelorism, ear abnormalities, and micrognathia. Other features, such as arachnodactyly and visual impairment, are more variable. Most patients die in the first years of life (summary by Braun et al., 2017). For a general phenotypic description and a discussion of genetic heterogeneity of GAMOS, see GAMOS1 (251300). [from OMIM]

MedGen UID:
1613511
Concept ID:
C4540270
Disease or Syndrome
5.

8q22.1 microdeletion syndrome

Nablus mask-like facial syndrome (NMLFS) is a rare entity defined by distinctive facial features, including blepharophimosis, tight-appearing glistening facial skin, an abnormal hair pattern with an upswept frontal hairline, sparse arched eyebrows, flat and broad nose, long philtrum, distinctive ears, and a happy demeanor (summary by Jain et al., 2010). [from OMIM]

MedGen UID:
334165
Concept ID:
C1842464
Disease or Syndrome
6.

Shashi-Pena syndrome

Shashi-Pena syndrome is a neurodevelopmental syndrome characterized by delayed psychomotor development, variable intellectual disability, hypotonia, facial dysmorphism, and some unusual features, including enlarged head circumference, glabellar nevus flammeus, and deep palmar creases. Some patients may also have atrial septal defect, episodic hypoglycemia, changes in bone mineral density, and/or seizures (summary by Shashi et al., 2016). [from OMIM]

MedGen UID:
934639
Concept ID:
C4310672
Disease or Syndrome
7.

Chromosome 16p13.3 duplication syndrome

16p13.3 microduplication syndrome is a rare chromosomal anomaly syndrome resulting from a partial duplication of the short arm of chromosome 16 and manifesting with a variable phenotype which is mostly characterized by: mild to moderate intellectual deficit and developmental delay (particularly speech), normal growth, short, proximally implanted thumbs and other hand and feet malformations (such as camptodactyly, syndactyly, club feet), mild arthrogryposis and characteristic facies (upslanting, narrow palpebral fissures, hypertelorism, mid face hypoplasia, bulbous nasal tip and low set ears). Other reported manifestations include cryptorchidism, inguinal hernia and behavioral problems. [from ORDO]

MedGen UID:
462058
Concept ID:
C3150708
Disease or Syndrome
8.

Humerofemoral hypoplasia with radiotibial ray deficiency

Humerofemoral hypoplasia with radiotibial ray deficiency (HHRRD) is a severe dysostosis characterized by reduction of all 4 limbs as well as hypoplasia of the upper limb girdle and pelvis. Rudimentary finger- or toe-like appendages may be present (Szenker-Ravi et al., 2018). [from OMIM]

MedGen UID:
1648393
Concept ID:
C4747940
Congenital Abnormality
9.
10.

Neurodevelopmental disorder with cerebellar hypoplasia and spasticity

MedGen UID:
1684815
Concept ID:
C5231415
Disease or Syndrome
11.

Suleiman-El-Hattab syndrome

Suleiman-El-Hattab syndrome (SULEHS) is an autosomal recessive multisystem developmental disorder characterized by hypotonia and feeding difficulties soon after birth, global developmental delay with impaired intellectual development and poor expressive speech, and a general happy demeanor. There is a distinctive facial appearance with microcephaly, thick arched eyebrows with synophrys, hypertelorism, epicanthal folds, low-set ears, broad nasal bridge, and thin upper lip. Additional more variable features include recurrent respiratory infections, cardiovascular malformations, cryptorchidism, seizures, and distal anomalies of the hands and feet (summary by Suleiman et al., 2019). [from OMIM]

MedGen UID:
1738652
Concept ID:
C5436458
Disease or Syndrome
12.

Neurodevelopmental disorder with microcephaly and dysmorphic facies

Nabais Sa-de Vries syndrome type 1 (NSDVS1) is characterized by global developmental delay apparent from infancy, variable behavioral abnormalities, microcephaly, and dysmorphic facial features, including round face, small palpebral fissures, highly arched eyebrows, and short nose. The severity is variable (summary by Nabais Sa et al., 2020). [from OMIM]

MedGen UID:
1719418
Concept ID:
C5394218
Disease or Syndrome
13.

Developmental delay, impaired speech, and behavioral abnormalities

Developmental delay, impaired speech, and behavioral abnormalities (DDISBA) is characterized by global developmental delay apparent from early childhood. Intellectual disability can range from mild to severe. Additional variable features may include dysmorphic facial features, seizures, hypotonia, motor abnormalities such as Tourette syndrome or dystonia, and hearing loss (summary by Cousin et al., 2021). [from OMIM]

MedGen UID:
1794167
Concept ID:
C5561957
Disease or Syndrome
14.

Prominent glabella-microcephaly-hypogenitalism syndrome

A very rare syndrome described in two siblings with manifestation of prenatal onset of growth deficiency, microcephaly, hypoplastic genitalia, and birth onset of convulsions. [from SNOMEDCT_US]

MedGen UID:
162900
Concept ID:
C0796024
Disease or Syndrome
15.

Craniotubular dysplasia, Ikegawa type

Craniotubular dysplasia, Ikegawa type (CTDI) is characterized by childhood-onset short stature in association with macrocephaly, dolichocephaly, or prominent forehead. Radiography shows hyperostosis of the calvaria and skull base, with metadiaphyseal undermodeling of the long tubular bones and mild shortening and diaphyseal broadening of the short tubular bones. Affected individuals experience progressive vision loss in the first decade of life due to optic nerve compression, and deafness may develop in the second decade of life (Guo et al., 2021). [from OMIM]

MedGen UID:
1806238
Concept ID:
C5575335
Disease or Syndrome
16.

Coffin-Siris syndrome 12

Coffin-Siris syndrome-12 (CSS12) is a neurodevelopmental disorder characterized by global developmental delay with variably impaired intellectual development, speech and language delay, and behavioral abnormalities, such as autism or hyperactivity. Affected individuals may have hypotonia and poor feeding in infancy. There are variable dysmorphic facial features, although most patients do not have the classic hypoplastic fifth digit/nail abnormalities that are often observed in other forms of CSS (Barish et al., 2020). For a general phenotypic description and a discussion of genetic heterogeneity of Coffin-Siris syndrome, see CSS1 (135900). [from OMIM]

MedGen UID:
1782096
Concept ID:
C5444111
Disease or Syndrome
17.

Syndromic X-linked intellectual disability Chudley-Schwartz type

A syndromic X-linked intellectual disability characterized by moderate intellectual disability, seizures, dysmorphic facial features and in some older patients slowly progressive unsteady gait and progressive weakness that has material basis in variation in the chromosomal region Xq21.33-q23. [from MONDO]

MedGen UID:
477102
Concept ID:
C3275471
Mental or Behavioral Dysfunction
18.

Tessadori-Van Haaften neurodevelopmental syndrome 3

Tessadori-Bicknell-van Haaften neurodevelopmental syndrome-3 (TEBIVANED3) is characterized by global developmental delay with poor overall growth, impaired intellectual development, and speech difficulties. More variable features include hypotonia, microcephaly, and dysmorphic facies. The severity and manifestations of the disorder are highly variable (Tessadori et al., 2022). For a discussion of genetic heterogeneity of Tessadori-Bicknell-van Haaften neurodevelopmental disorder, see TEBIVANED1 (619758). [from OMIM]

MedGen UID:
1824083
Concept ID:
C5774310
Disease or Syndrome
19.

Developmental delay with variable neurologic and brain abnormalities

Developmental delay with variable neurologic and brain abnormalities (DENBA) is characterized most often by motor and speech delay apparent from early childhood. Most patients have delayed walking and variably impaired intellectual development. Additional neurologic features may include seizures, spasticity, and ocular abnormalities. Brain imaging often shows thin corpus callosum and may show white matter atrophy, myelination abnormalities, or enlarged ventricles. The severity of the disorder and clinical manifestations are highly variable (summary by Malhotra et al., 2021). [from OMIM]

MedGen UID:
1794270
Concept ID:
C5562060
Disease or Syndrome
20.

Prominent glabella

Forward protrusion of the glabella. [from HPO]

MedGen UID:
349761
Concept ID:
C1860247
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