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1.

Neu-Laxova syndrome 1

Any Neu-Laxova syndrome in which the cause of the disease is a mutation in the PHGDH gene. [from MONDO]

MedGen UID:
1633287
Concept ID:
C4551478
Disease or Syndrome
2.

Diamond-Blackfan anemia 10

Diamond-Blackfan anemia (DBA) is characterized by a profound normochromic and usually macrocytic anemia with normal leukocytes and platelets, congenital malformations in up to 50%, and growth deficiency in 30% of affected individuals. The hematologic complications occur in 90% of affected individuals during the first year of life. The phenotypic spectrum ranges from a mild form (e.g., mild anemia or no anemia with only subtle erythroid abnormalities, physical malformations without anemia) to a severe form of fetal anemia resulting in nonimmune hydrops fetalis. DBA is associated with an increased risk for acute myelogenous leukemia (AML), myelodysplastic syndrome (MDS), and solid tumors including osteogenic sarcoma. [from GeneReviews]

MedGen UID:
412873
Concept ID:
C2750080
Disease or Syndrome
3.

Peters plus syndrome

Peters plus syndrome is characterized by anterior chamber eye anomalies, short limbs with broad distal extremities, characteristic facial features, cleft lip/palate, and variable developmental delay / intellectual disability. The most common anterior chamber defect is Peters' anomaly, consisting of central corneal clouding, thinning of the posterior cornea, and iridocorneal adhesions. Cataracts and glaucoma are common. Developmental delay is observed in about 80% of children; intellectual disability can range from mild to severe. [from GeneReviews]

MedGen UID:
163204
Concept ID:
C0796012
Disease or Syndrome
4.

Fryns syndrome

Fryns syndrome is characterized by diaphragmatic defects (diaphragmatic hernia, eventration, hypoplasia, or agenesis); characteristic facial appearance (coarse facies, wide-set eyes, a wide and depressed nasal bridge with a broad nasal tip, long philtrum, low-set and anomalous ears, tented vermilion of the upper lip, wide mouth, and a small jaw); short distal phalanges of the fingers and toes (the nails may also be small); pulmonary hypoplasia; and associated anomalies (polyhydramnios, cloudy corneas and/or microphthalmia, orofacial clefting, renal dysplasia / renal cortical cysts, and/or malformations involving the brain, cardiovascular system, gastrointestinal system, and/or genitalia). Survival beyond the neonatal period is rare. Data on postnatal growth and psychomotor development are limited; however, severe developmental delay and intellectual disability are common. [from GeneReviews]

MedGen UID:
65088
Concept ID:
C0220730
Disease or Syndrome
5.

Spondylocostal dysostosis 4, autosomal recessive

Spondylocostal dysostosis (SCDO), defined radiographically as multiple segmentation defects of the vertebrae (M-SDV) in combination with abnormalities of the ribs, is characterized clinically by: a short trunk in proportion to height; short neck; non-progressive mild scoliosis in most affected individuals, and occasionally, more significant scoliosis. Respiratory function in neonates may be compromised by reduced size of the thorax. By age two years lung growth may improve sufficiently to support relatively normal growth and development; however, even then life-threatening complications can occur, especially pulmonary hypertension in children with severely restricted lung capacity from birth. Males with SCDO appear to be at increased risk for inguinal hernia. [from GeneReviews]

MedGen UID:
462292
Concept ID:
C3150942
Disease or Syndrome
6.

Schinzel phocomelia syndrome

The Al-Awadi/Raas-Rothschild/Schinzel phocomelia syndrome (AARRS) is a rare autosomal recessive disorder characterized by severe malformations of upper and lower limbs with severely hypoplastic pelvis and abnormal genitalia. The disorder is believed to represent a defect of dorsoventral patterning and outgrowth of limbs (summary by Kantaputra et al., 2010). [from OMIM]

MedGen UID:
336388
Concept ID:
C1848651
Disease or Syndrome
7.

Hereditary spastic paraplegia 49

TECPR2-related hereditary sensory and autonomic neuropathy with intellectual disability (TECPR2-HSAN with ID) is characterized by developmental delay and subsequent intellectual disability, behavioral abnormalities, neurologic manifestations (muscular hypotonia, sensory neuropathy with lower-limb hypo- or areflexia and ataxic gait), and autonomic dysfunction (including central hypoventilation and apnea, gastrointestinal dysmotility, dysphagia, and gastroesophageal reflux disease with recurrent aspiration). To date, more than 30 individuals with TECPR2-HSAN with ID have been identified. [from GeneReviews]

MedGen UID:
762260
Concept ID:
C3542549
Disease or Syndrome
8.

Chromosome 17q11.2 deletion syndrome, 1.4Mb

Approximately 5 to 20% of all patients with neurofibromatosis type I (162200) carry a heterozygous deletion of approximately 1.4 Mb involving the NF1 gene and contiguous genes lying in its flanking regions (Riva et al., 2000; Jenne et al., 2001), which is caused by nonallelic homologous recombination of NF1 repeats A and C (Dorschner et al., 2000). The 'NF1 microdeletion syndrome' is often characterized by a more severe phenotype than that observed in the majority of NF1 patients. In particular, patients with NF1 microdeletion often show variable facial dysmorphism, mental retardation, developmental delay, an excessive number of early-onset neurofibromas (Venturin et al., 2004), and an increased risk for malignant peripheral nerve sheath tumors (De Raedt et al., 2003). [from OMIM]

MedGen UID:
1726802
Concept ID:
C5401456
Disease or Syndrome
9.

Noonan syndrome-like disorder with loose anagen hair 2

An inherited condition caused by autosomal dominant mutation(s) in the PPP1CB gene, encoding serine/threonine-protein phosphatase PP1-beta catalytic subunit. The condition is characterized by facial features similar to those seen in Noonan syndrome but may also include short stature, cognitive deficits, relative macrocephaly, small posterior fossa resulting in Chiari I malformation, hypernasal voice, cardiac defects, and ectodermal abnormalities, which typically presents as slow-growing, sparse, and/or unruly hair. [from NCI]

MedGen UID:
1376945
Concept ID:
C4479577
Disease or Syndrome
10.

Syndromic X-linked intellectual disability Nascimento type

The Nascimento type of X-linked syndromic intellectual developmental disorder (MRXSN) is characterized by dysmorphic features, including large head, synophrys, prominent supraorbital ridges, almond-shaped and deep-set eyes, large ears, wide mouth, myxedematous appearance, hirsutism, abnormal hair whorls, micropenis, and onychodystrophy. Female carriers have normal cognition, but may show subtle facial features (summary by Budny et al., 2010). [from OMIM]

MedGen UID:
477095
Concept ID:
C3275464
Disease or Syndrome
11.

Hydrolethalus syndrome 1

Hydrolethalus-1 (HLS1) is an autosomal recessive lethal malformation syndrome characterized by hydrocephaly with absent upper midline structures of the brain, micrognathia, and polydactyly. Various other features such as cleft lip or palate, club feet, anomalies of the ears, eyes, and nose, keyhole-shaped defect in the occipital bone, abnormal genitalia, and congenital heart and respiratory organ defects have also been observed in affected individuals. Affected individuals are stillborn or die shortly after birth (summary by Mee et al., 2005). Genetic Heterogeneity of Hydrolethalus Syndrome See also HLS2 (614120), caused by mutation in the KIF7 gene (611254) on chromosome 15q26. [from OMIM]

MedGen UID:
343455
Concept ID:
C1856016
Disease or Syndrome
12.

MEGF8-related Carpenter syndrome

Carpenter syndrome-2 (CRPT2) is an autosomal recessive multiple congenital malformation disorder characterized by multisuture craniosynostosis and polysyndactyly of the hands and feet, in association with abnormal left-right patterning and other features, most commonly obesity, umbilical hernia, cryptorchidism, and congenital heart disease (summary by Twigg et al., 2012). For a discussion of genetic heterogeneity of Carpenter syndrome, see 201000. [from OMIM]

MedGen UID:
767161
Concept ID:
C3554247
Disease or Syndrome
13.

Ritscher-Schinzel syndrome 2

Ritscher-Schinzel syndrome (RSS) is a clinically recognizable condition that includes the cardinal findings of craniofacial features, cerebellar defects, and cardiovascular malformations resulting in the alternate diagnostic name of 3C syndrome. Dysmorphic facial features may include brachycephaly, hypotonic face with protruding tongue, flat appearance of the face on profile view, short midface, widely spaced eyes, downslanted palpebral fissures, low-set ears with overfolding of the upper helix, smooth or short philtrum, and high or cleft palate. Affected individuals also typically have a characteristic metacarpal phalangeal profile showing a consistent wavy pattern on hand radiographs. RSS is associated with variable degrees of developmental delay and intellectual disability. Eye anomalies and hypercholesterolemia may be variably present. [from GeneReviews]

MedGen UID:
897005
Concept ID:
C4225419
Disease or Syndrome
14.

Diamond-Blackfan anemia 15 with mandibulofacial dysostosis

Any Diamond-Blackfan anemia in which the cause of the disease is a mutation in the RPS28 gene. [from MONDO]

MedGen UID:
902755
Concept ID:
C4225411
Disease or Syndrome
15.

Corpus callosum agenesis-intellectual disability-coloboma-micrognathia syndrome

Corpus callosum agenesis-intellectual disability-coloboma-micrognathia syndrome is a developmental anomalies syndrome characterized by coloboma of the iris and optic nerve, facial dysmorphism (high forehead, microretrognathia, low-set ears), intellectual deficit, agenesis of the corpus callosum (ACC), sensorineural hearing loss, skeletal anomalies and short stature. [from ORDO]

MedGen UID:
335185
Concept ID:
C1845446
Disease or Syndrome
16.

Uruguay Faciocardiomusculoskeletal syndrome

Uruguay faciocardiomusculoskeletal syndrome (FCMSU) is an X-linked disorder in which affected males have a distinctive facial appearance, muscular hypertrophy, and cardiac ventricular hypertrophy leading to premature death. Additional features include large, broad, and deformed hands and feet, congenital hip dislocation, and scoliosis (summary by Xue et al., 2016). [from OMIM]

MedGen UID:
335320
Concept ID:
C1846010
Disease or Syndrome
17.

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
18.

Sweeney-Cox syndrome

Sweeney-Cox syndrome (SWCOS) is characterized by striking facial dysostosis, including hypertelorism, deficiencies of the eyelids and facial bones, cleft palate/velopharyngeal insufficiency, and low-set cupped ears (Kim et al., 2017). [from OMIM]

MedGen UID:
1625659
Concept ID:
C4540299
Disease or Syndrome
19.

Intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency

IMAGEI is an autosomal recessive disorder characterized by intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency. Patients exhibit distinctive facial features and variable immune dysfunction with evidence of lymphocyte deficiency (Logan et al., 2018). An autosomal dominant form of the disorder, without immunodeficiency (IMAGE; 614732), is caused by mutation in the CDKN1C gene (600856) on chromosome 11p15. [from OMIM]

MedGen UID:
1684464
Concept ID:
C5193036
Disease or Syndrome
20.

Fetal akinesia deformation sequence 2

The fetal akinesia deformation sequence (FADS) refers to a clinically and genetically heterogeneous constellation of features including fetal akinesia, intrauterine growth retardation, arthrogryposis, and developmental anomalies, including lung hypoplasia, cleft palate, and cryptorchidism (Vogt et al., 2009). It shows phenotypic overlap with the lethal form of multiple pterygium syndrome (see 253290). For a general phenotypic description and a discussion of genetic heterogeneity of FADS, see 208150. [from OMIM]

MedGen UID:
1678048
Concept ID:
C4760576
Disease or Syndrome
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