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Short Rib Skeletal Dysplasia Panel

Summary and Pricing

Test Method

Exome Sequencing with CNV Detection
Test Code Test Copy Genes Gene CPT Codes Copy CPT Codes
DYNC2H1 81479,81479
DYNC2I1 81479,81479
DYNC2I2 81479,81479
EVC 81479,81479
EVC2 81479,81479
FGFR2 81479,81479
FGFR3 81479,81479
IFT122 81479,81479
IFT140 81479,81479
IFT172 81479,81479
IFT80 81479,81479
NEK1 81479,81479
PAPSS2 81479,81479
SLC26A2 81479,81479
SOX9 81479,81479
TCTN3 81479,81479
TTC21B 81479,81479
WDR19 81479,81479
WDR35 81479,81479
Test Code Test Copy Genes Panel CPT Code Gene CPT Codes Copy CPT Code Base Price
10347Genes x (19)81479 81479(x38) $990 Order Options and Pricing

Pricing Comments

We are happy to accommodate requests for testing single genes in this panel or a subset of these genes. The price will remain the list price. If desired, free reflex testing to remaining genes on panel is available. Alternatively, a single gene or subset of genes can also be ordered via our Custom Panel tool.

An additional 25% charge will be applied to STAT orders. STAT orders are prioritized throughout the testing process.

Click here for costs to reflex to whole PGxome (if original test is on PGxome Sequencing platform).

Click here for costs to reflex to whole PGnome (if original test is on PGnome Sequencing platform).

Turnaround Time

3 weeks on average for standard orders or 2 weeks on average for STAT orders.

Please note: Once the testing process begins, an Estimated Report Date (ERD) range will be displayed in the portal. This is the most accurate prediction of when your report will be complete and may differ from the average TAT published on our website. About 85% of our tests will be reported within or before the ERD range. We will notify you of significant delays or holds which will impact the ERD. Learn more about turnaround times here.

Targeted Testing

For ordering sequencing of targeted known variants, go to our Targeted Variants page.


Genetic Counselors


  • Juan Dong, PhD, FACMG

Clinical Features and Genetics

Clinical Features

Short rib-polydactyly syndrome (SRTD) is a group of skeletal ciliopathies characterized by markedly short ribs, short limbs, with or without polydactyly. Some patients may also present abnormalities involving the brain, eyes, heart, kidneys, liver, pancreas, intestines, and genitalia. SRTD includes Ellis-van Creveld syndrome, Jeune syndrome (asphyxiating thoracic dystrophy), and Mainzer-Saldino syndrome. 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 (Huber and Cormier-Daire 2012).

This Short Rib Skeletal Dysplasia NextGen Panel focuses on, but is not limited to the following conditions: Short-rib thoracic dysplasia, Short-rib thoracic dysplasia with or without polydactyly types, Ellis-van Creveld syndrome, Cranioectodermal dysplasia, asphyxiating thoracic dystrophy, Mainzer-Saldino syndrome, Verma-Naumoff, Brachyolmia 4 with mild epiphyseal and metaphyseal changes, diastrophic dysplasia, atelosteogenesis type II, achondrogenesis type IB, campomelic dysplasia, Pfeiffer syndrome type 3 and thanatophoric dysplasia.


This test analyzes 19 genes involved in Short Rib Skeletal Dysplasia.

16 out of the 19 genes are related to Autosomal Recessive conditions: DYNC2H1, EVC, EVC2, IFT122, IFT140, IFT172, IFT80, NEK1, PAPSS2, SLC26A2, TCTN3, TTC21B, WDR19, DYNC2I2/WDR34, WDR35, and DYNC2I1/WDR60.

EVC and EVC2: Ellis-van Creveld syndrome, Weyers acrodental dysostosis

IFT122: Cranioectodermal dysplasia 1 (also called Sensenbrenner syndrome)

IFT80: Short-rib thoracic dysplasia 2 with or without polydactyly (also called Jeune syndrome)

DYNC2H1: Short-rib thoracic dysplasia 3 with or without polydactyly

TTC21B: Short-rib thoracic dysplasia 4 with or without polydactyly

WDR19: Short-rib thoracic dysplasia 5 with or without polydactyly, Senior-Loken syndrome 8, Cranioectodermal dysplasia

NEK1: Short-rib thoracic dysplasia 6 with or without polydactyly

WDR35: Short-rib thoracic dysplasia 7 with or without polydactyly, Cranioectodermal dysplasia 2

DYNC2I1/WDR60: Short-rib thoracic dysplasia 8 with or without polydactyly

IFT140: Short-rib thoracic dysplasia 9 with or without polydactyly (also called Mainzer-Saldino syndrome, Majewski type)

IFT172: Short-rib thoracic dysplasia 10 with or without polydactyly

DYNC2I2/WDR34: Short-rib thoracic dysplasia 11 with or without polydactyly

PAPSS2: Brachyolmia 4 with mild epiphyseal and metaphyseal changes (also called spondyloepimetaphyseal and premature pubarche)

SLC26A2: Diastrophic dysplasia broad bone-platyspondylic variant, Achondrogenesis Ib, Atelosteogenesis II (also called De la Chapelle dysplasia)

TCTN3: Joubert syndrome 18, Orofaciodigital syndrome IV

Three out of the 19 genes are related to Autosomal Dominant conditions: FGFR2, FGFR3 and SOX9.

FGFR2: Pfeiffer syndrome type 3

FGFR3: Thanatophoric dysplasia, type I and Thanatophoric dysplasia, type II

SOX9: Campomelic dysplasia, Acampomelic campomelic dysplasia

NOTE: FGFR3 pathogenic variants can also cause autosomal recessive Camptodactyly, Tall Stature, Scoliosis, and Hearing Loss Syndrome (also called CATSHL syndrome).

See individual gene test descriptions for information on clinical features and molecular biology of gene products.

Clinical Sensitivity - Sequencing with CNV PGxome

Genes tested in this panel have been implicated in Short Rib Skeletal Dysplasia and although individually these genes may be involved in a minority of Short Rib Skeletal Dysplasia, the combination of pathogenic variants may be responsible for a significant portion of Short Rib Skeletal Dysplasia.

In one study, DYNC2H1 pathogenic variants were identified in 19 out of 57 (33%) of studied families with a clinical diagnosis of asphyxiating thoracic dystrophy (Schmidts et al. 2013).

Combining EVC and EVC2, this test is predicted to detect pathogenic variants in at least two thirds of affected individuals with EVC (Tompson et al. 2007; Valencia et al. 2009). In one study, EVC and EVC2 pathogenic variants were found in 74% (20/27) and 26% (7/27) of EVC patients, respectively (D'Asdia et al. 2013).

SOX9 pathogenic variants were identified in 7 out of 9 campomelic dysplasia patients (Mattos et al. 2015).

SLC26A2 pathogenic variants were identified in >95% of individuals affected with Achondrogenesis type 1B (Rossi & Superti-Furga. 2001).

Analytical sensitivity for FGFR2 should be high, because almost 97% of known pathogenic variants are missense, splicing site and small deletions/insertions (Human Gene Mutation Database).

FGFR3 pathogenic variants were found in >99% of patients with Achondroplasia, Thanatophoric dysplasia and Muenke syndrome (Karczeski and Cutting 2013).

9 gross deletions/duplications and three complex rearrangements have been reported in EVC (D'Ambrosio et al. 2015, HGMD). Five gross deletions have been reported in EVC2 (Valencia et al. 2009; HGMD).

Only five documented pathogenic FGFR2 variants are large deletions/insertions (HGMD; Bochukova et al. 2009).

Only one large deletion was reported in the WDR35 gene (Mill et al. 2011).

To date, no gross deletions or duplications have been reported in FGFR3, ITF122, and SLC26A2 (HGMD).

Testing Strategy

This test is performed using Next-Gen sequencing with additional Sanger sequencing as necessary.

This panel typically provides 98.8% coverage of all coding exons of the genes plus 10 bases of flanking noncoding DNA in all available transcripts along with other non-coding regions in which pathogenic variants have been identified at PreventionGenetics or reported elsewhere. We define coverage as ≥20X NGS reads or Sanger sequencing. PGnome panels typically provide slightly increased coverage over the PGxome equivalent. PGnome sequencing panels have the added benefit of additional analysis and reporting of deep intronic regions (where applicable).

Dependent on the sequencing backbone selected for this testing, discounted reflex testing to any other similar backbone-based test is available (i.e., PGxome panel to whole PGxome; PGnome panel to whole PGnome).

Indications for Test

Individuals with a clinical presentation of Short Rib Skeletal Dysplasia or a family history of Short Rib Skeletal Dysplasia.


Official Gene Symbol OMIM ID
DYNC2H1 603297
DYNC2I1 615462
DYNC2I2 613363
EVC 604831
EVC2 607261
FGFR2 176943
FGFR3 134934
IFT122 606045
IFT140 614620
IFT172 607386
IFT80 611177
NEK1 604588
PAPSS2 603005
SLC26A2 606718
SOX9 608160
TCTN3 613847
TTC21B 612014
WDR19 608151
WDR35 613602
Inheritance Abbreviation
Autosomal Dominant AD
Autosomal Recessive AR
X-Linked XL
Mitochondrial MT

Related Test



  • Bochukova E.G. et al. 2009. Human Mutation. 30: 204-11. PubMed ID: 21473986
  • D'Ambrosio V. et al. 2015. Prenatal Diagnosis. 35: 97-9. PubMed ID: 25174843
  • D'Asdia M.C. et al. 2013. European Journal of Medical Genetics. 56: 80-7. PubMed ID: 23220543
  • Huber C, Cormier-Daire V. 2012. American Journal of Medical Genetics. Part C, Seminars in Medical Genetics 160C: 165-174. PubMed ID: 22791528
  • Human Gene Mutation Database (Bio-base).
  • Karczeski B., Cutting G.R. 2013. Thanatophoric Dysplasia. In: Pagon RA, Adam MP, Ardinger HH, Wallace SE, Amemiya A, Bean LJ, Bird TD, Dolan CR, Fong C-T, Smith RJ, and Stephens K, editors. GeneReviews(), Seattle (WA): University of Washington, Seattle. PubMed ID: 20301540
  • Mattos E.P. et al. 2015. Genetics and Molecular Biology. 38: 14-20. PubMed ID: 25983619
  • Mill P. et al. 2011. American Journal of Human Genetics. 88: 508-15.
  • Rossi A., Superti-Furga A. 2001. Human Mutation. 17: 159-71. PubMed ID: 11241838
  • Schmidts M. et al. 2013. Journal of Medical Genetics. 50: 309-23. PubMed ID: 23456818
  • Tompson S.W. et al. 2007. Human Genetics. 120: 663-70. PubMed ID: 17024374
  • Valencia M. et al. 2009. Human Mutation. 30: 1667-75. PubMed ID: 19810119


Ordering Options

We offer several options when ordering sequencing tests. For more information on these options, see our Ordering Instructions page. To view available options, click on the Order Options button within the test description.

myPrevent - Online Ordering

  • The test can be added to your online orders in the Summary and Pricing section.
  • Once the test has been added log in to myPrevent to fill out an online requisition form.
  • PGnome sequencing panels can be ordered via the myPrevent portal only at this time.

Requisition Form

  • A completed requisition form must accompany all specimens.
  • Billing information along with specimen and shipping instructions are within the requisition form.
  • All testing must be ordered by a qualified healthcare provider.

For Requisition Forms, visit our Forms page

If ordering a Duo or Trio test, the proband and all comparator samples are required to initiate testing. If we do not receive all required samples for the test ordered within 21 days, we will convert the order to the most effective testing strategy with the samples available. Prior authorization and/or billing in place may be impacted by a change in test code.

Specimen Types

Specimen Requirements and Shipping Details

PGxome (Exome) Sequencing Panel

PGnome (Genome) Sequencing Panel

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