Blepharophimosis-intellectual Disability Syndrome, Sbbys Type

Description

Blepharophimosis-intellectual disability syndrome, SBBYS type is characterised by the association of congenital hypothyroidism, facial dysmorphism (microcephaly, blepharophimosis, a bulbous nose, thin lip, low-set ears and micrognathia), postaxial polydactyly and severe intellectual deficit. Less than 20 cases have been reported so far. Cryptorchidism is present in affected males. Some patients also have cardiac anomalies (interventricular communication), hypotonia and growth delay. Autosomal recessive inheritance has been suggested.

Clinical Features

Top most frequent phenotypes and symptoms related to Blepharophimosis-intellectual Disability Syndrome, Sbbys Type

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Microcephaly
  • Growth delay
  • Failure to thrive
  • Micrognathia
  • Muscular hypotonia
  • Cryptorchidism
  • Low-set ears

And another 33 symptoms. If you need more information about this disease we can help you.

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Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
No data available about the known clinical features onset.

Alternative names

Blepharophimosis-intellectual Disability Syndrome, Sbbys Type Is also known as say-barber-biesecker-young-simpson syndrome, sbbyss, hypothyroidism-dysmorphism-postaxial polydactyly-intellectual disability syndrome.

Researches and researchers

Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.

Blepharophimosis-intellectual Disability Syndrome, Sbbys Type Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Non-immune Hydrops Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

RIT1, RPL11, RPL35A, RPL5, RPS10, RPS17, RPS19, RPS24, RPS26, SEC23B, SLC17A5, BRAF, SMPD1, SOS1, SOS2, SOX18, UROS, CBL, SHOC2, ALG9 , (...)

View the complete list with 66 more genes
Specificity
2 %
Genes
100 %
NGS RASopathy Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

RIT1, RRAS, BRAF, SOS1, SOS2, CBL, SHOC2, KAT6B, SPRED1, A2ML1, CABIN1, NSUN2, HRAS, KRAS, LZTR1, MAP2K1, MAP2K2, NF1, NF2, NRAS , (...)

View the complete list with 3 more genes
Specificity
5 %
Genes
100 %
KAT6B Sequencing.

By Cincinnati Children's Hospital Medical Center Laboratory of Genetics and Genomics Cincinnati Children's Hospital Medical Center (United States).

KAT6B
Specificity
100 %
Genes
100 %
KAT6B Deletion/duplication analysis.

By Cincinnati Children's Hospital Medical Center Laboratory of Genetics and Genomics Cincinnati Children's Hospital Medical Center (United States).

KAT6B
Specificity
100 %
Genes
100 %
Noonan Spectrum Disorders Panel, Sequencing.

By ARUP Laboratories, Molecular Genetics and Genomics (United States).

RIT1, BRAF, SOS1, CBL, SHOC2, KAT6B, SPRED1, RAB40AL, HRAS, KRAS, MAP2K1, MAP2K2, NRAS, PTPN11, RAF1
Specificity
7 %
Genes
100 %
Noonan Spectrum Disorders Panel, Sequencing, Fetal.

By ARUP Laboratories, Molecular Genetics and Genomics (United States).

RIT1, BRAF, SOS1, CBL, SHOC2, KAT6B, SPRED1, RAB40AL, HRAS, KRAS, MAP2K1, MAP2K2, NRAS, PTPN11, RAF1
Specificity
7 %
Genes
100 %
KAT6B. Complete sequencing.

By Instituto de Medicina Genomica Instituto de Medicina Genomica (Spain).

KAT6B
Specificity
100 %
Genes
100 %
KAT6B. Complete sequencing.

By Instituto de Medicina Genomica Instituto de Medicina Genomica (Spain).

KAT6B
Specificity
100 %
Genes
100 %

You can get up to 29 more panels with our dedicated tool

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Sources and references

You can check the following sources for additional information.

ORPHANET Genetic Syndrome Finder

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