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Items: 11

1.

CHARGE association

CHD7 disorder encompasses the entire phenotypic spectrum of heterozygous CHD7 pathogenic variants that includes CHARGE syndrome as well as subsets of features that comprise the CHARGE syndrome phenotype. The mnemonic CHARGE syndrome, introduced in the premolecular era, stands for coloboma, heart defect, choanal atresia, retarded growth and development, genital hypoplasia, ear anomalies (including deafness). Following the identification of the genetic cause of CHD7 disorder, the phenotypic spectrum expanded to include cranial nerve anomalies, vestibular defects, cleft lip and/or palate, hypothyroidism, tracheoesophageal anomalies, brain anomalies, seizures, and renal anomalies. Life expectancy highly depends on the severity of manifestations; mortality can be high in the first few years when severe birth defects (particularly complex heart defects) are present and often complicated by airway and feeding issues. In childhood, adolescence, and adulthood, decreased life expectancy is likely related to a combination of residual heart defects, infections, aspiration or choking, respiratory issues including obstructive and central apnea, and possibly seizures. Despite these complications, the life expectancy for many individuals can be normal. [from GeneReviews]

MedGen UID:
75567
Concept ID:
C0265354
Disease or Syndrome
2.

Asphyxiating thoracic dystrophy 3

Short-rib thoracic dysplasia (SRTD) with or without polydactyly refers to a group of autosomal recessive skeletal ciliopathies that are characterized by a constricted thoracic cage, short ribs, shortened tubular bones, and a 'trident' appearance of the acetabular roof. SRTD encompasses Ellis-van Creveld syndrome (EVC) and the disorders previously designated as Jeune syndrome or asphyxiating thoracic dystrophy (ATD), short rib-polydactyly syndrome (SRPS), and Mainzer-Saldino syndrome (MZSDS). Polydactyly is variably present, and there is phenotypic overlap in the various forms of SRTDs, which differ by visceral malformation and metaphyseal appearance. Nonskeletal involvement can include cleft lip/palate as well as anomalies of major organs such as the brain, eye, heart, kidneys, liver, pancreas, intestines, and genitalia. Some forms of SRTD are lethal in the neonatal period due to respiratory insufficiency secondary to a severely restricted thoracic cage, whereas others are compatible with life (summary by Huber and Cormier-Daire, 2012 and Schmidts et al., 2013). There is phenotypic overlap with the cranioectodermal dysplasias (Sensenbrenner syndrome; see CED1, 218330). For a discussion of genetic heterogeneity of short-rib thoracic dysplasia, see SRTD1 (208500). [from OMIM]

MedGen UID:
19860
Concept ID:
C0036069
Disease or Syndrome
3.

Talipes equinovarus

Clubfoot is a congenital limb deformity defined as fixation of the foot in cavus, adductus, varus, and equinus (i.e., inclined inwards, axially rotated outwards, and pointing downwards) with concomitant soft tissue abnormalities (Cardy et al., 2007). Clubfoot may occur in isolation or as part of a syndrome (e.g., diastrophic dysplasia, 222600). Clubfoot has been reported with deficiency of long bones and mirror-image polydactyly (Gurnett et al., 2008; Klopocki et al., 2012). [from OMIM]

MedGen UID:
3130
Concept ID:
C0009081
Congenital Abnormality
4.

Tibia, hypoplasia or aplasia of, with polydactyly

MedGen UID:
348786
Concept ID:
C1861098
Disease or Syndrome
5.

Laurin-Sandrow syndrome

Laurin-Sandrow syndrome (LSS) is an autosomal dominant disorder characterized by polysyndactyly of hands and feet, mirror image duplication of feet, and nasal defects (hypoplastic alae nasi, short columella), in connection with absent patella and duplicated fibula (summary by Lohan et al., 2014). [from OMIM]

MedGen UID:
340697
Concept ID:
C1851100
Disease or Syndrome
6.

Gollop-Wolfgang complex

A very rare malformation with main features of ectrodactyly of the hand and ipsilateral bifurcation of the femur. Approximately 200 cases have been reported worldwide. Congenital aplasia/hypoplasia of the tibia, accompanied by pre-axial oligodactyly or monodactyly of the feet, may also be present. In most cases, the bifurcation of the distal femur is unilateral. Patients are often small. Autosomal dominant and autosomal recessive modes of transmission have been suggested. [from SNOMEDCT_US]

MedGen UID:
341622
Concept ID:
C1856789
Disease or Syndrome
7.

Split-hand/foot malformation with long bone deficiency 1

MedGen UID:
349310
Concept ID:
C1861553
Disease or Syndrome
8.

Chromosome 17P13.3, telomeric, duplication syndrome

MedGen UID:
390813
Concept ID:
C2675492
Disease or Syndrome
9.

Tibial hemimelia

Tibial hemimelia is a rare anomaly characterized by deficiency of the tibia with relatively intact fibula. Jones et al. (1978) classified the anomaly into 4 types according to radiologic criteria. It may present as an isolated anomaly or be associated with a variety of skeletal and extraskeletal malformations. Tibial hemimelia may also constitute a part of a more complicated malformation complex or syndrome, such as the Gollop-Wolfgang complex (228250) and triphalangeal thumb-polysyndactyly syndrome (see 174500 and 188740) (Matsuyama et al., 2003). McKay et al. (1984) reviewed syndromes of congenital defects in which tibial hemimelia is a feature. [from OMIM]

MedGen UID:
120551
Concept ID:
C0265633
Congenital Abnormality
10.

Brachyphalangy, polydactyly, and tibial aplasia/hypoplasia

MedGen UID:
355340
Concept ID:
C1864965
Disease or Syndrome
11.

Absent tibia

Absence of the tibia. [from HPO]

MedGen UID:
478374
Concept ID:
C3276744
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