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GTR Home > Conditions/Phenotypes > Asphyxiating thoracic dystrophy 3

Asphyxiating thoracic dystrophy 3

Synonyms
POLYDACTYLY WITH NEONATAL CHONDRODYSTROPHY, TYPE I; SHORT-RIB THORACIC DYSPLASIA 3 WITH OR WITHOUT POLYDACTYLY; SHORT-RIB THORACIC DYSPLASIA 3/6 WITH POLYDACTYLY, DIGENIC; Saldino-Noonan Syndrome; Short rib polydactyly syndrome 2B
Modes of inheritance
Autosomal recessive inheritance (Orphanet)

Summary

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]

Available tests

39 tests are in the database for this condition.

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Clinical tests (39 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: ATD3, DHC1b, DHC2, DNCH2, DYH1B, SRPS2B, SRTD3, hdhc11, DYNC2H1
    Summary: dynein cytoplasmic 2 heavy chain 1

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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