Thrombocytopenia-absent Radius Syndrome; Tar

Description

The thrombocytopenia-absent radius syndrome (TAR) is characterized by reduction in the number of platelets and absence of the radius; preservation of the thumb distinguishes TAR from other syndromes that combine blood abnormalities with absence of the radius, such as Fanconi anemia (see {227650}). Individuals with TAR have low numbers of megakaryocytes, platelet precursor cells that reside in bone marrow, and frequently present with bleeding episodes in the first year of life that diminish in frequency and severity with age. The severity of skeletal anomalies varies from absence of radii to virtual absence of upper limbs, with or without lower limb defects such as malformations of the hip and knee (summary by Albers et al., 2012).

Clinical Features

Top most frequent phenotypes and symptoms related to Thrombocytopenia-absent Radius Syndrome; Tar

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Short stature
  • Hearing impairment
  • Scoliosis
  • Micrognathia
  • Strabismus
  • Sensorineural hearing impairment
  • Cleft palate

And another 91 symptoms. If you need more information about this disease we can help you.

Click here to know more about Mendelian.

Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
— The onset for some of the known clinical features related to this disease may vary, including infantile onset .

Alternative names

Thrombocytopenia-absent Radius Syndrome; Tar Is also known as tar syndrome, chromosome 1q21.1 deletion syndrome, 200-kb.

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.


Mendelian

Accelerate your rare disease diagnosis with us

Learn more

Thrombocytopenia-absent Radius Syndrome; Tar Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Bone Marrow Failure Syndromes Panel by next-generation sequencing (NGS).

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

RMRP, RPL11, RPL15, RPL26, RPL35A, RPL5, RPS10, RPS17, RPS19, RPS24, RPS26, RPS7, BRCA2, SRP72, TAZ, TERC, TERT, TINF2, WAS, WIPF1 , (...)

View the complete list with 40 more genes
Specificity
2 %
Genes
100 %
Bone Marrow Failure Syndromes Deletion/Duplication Panel.

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

RMRP, RPL11, RPL26, RPL35A, RPL5, RPS10, RPS19, RPS24, RPS26, RPS7, BRCA2, SRP72, TAZ, TERC, TERT, TINF2, WAS, WIPF1, NHP2, NOP10 , (...)

View the complete list with 36 more genes
Specificity
2 %
Genes
100 %
RBM8A Sequencing.

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

RBM8A
Specificity
100 %
Genes
100 %
RBM8A Deletion/Duplication Analysis.

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

RBM8A
Specificity
100 %
Genes
100 %
Inherited Bone Marrow Failure Sequencing Panel.

By Genetic Services Laboratory University of Chicago (United States).

RPL11, RPL15, RPL26, RPL35A, RPL5, RPS10, RPS19, RPS24, RPS26, RPS7, RUNX1, BRCA2, SRP72, TERC, TERT, TINF2, WAS, XRCC2, SAMD9, SAMD9L , (...)

View the complete list with 41 more genes
Specificity
2 %
Genes
100 %
Thrombocytopenia Sequencing Panel.

By Genetic Services Laboratory University of Chicago (United States).

CFB, SRC, TERC, TERT, THBD, VWF, WAS, C3, ADAMTS13, ABCG5, ABCG8, RUNX1T1, TUBB1, ACTN1, CFHR4, CFHR3, CYCS, CFHR5, DGKE, ANKRD26 , (...)

View the complete list with 23 more genes
Specificity
3 %
Genes
100 %
Thrombocytopenia Deletion/Duplication Panel.

By Genetic Services Laboratory University of Chicago (United States).

CFB, RUNX1, SRC, TERC, TERT, THBD, VWF, WAS, C3, ADAMTS13, ABCG5, ABCG8, TUBB1, ACTN1, CFHR4, CFHR3, CYCS, CFHR5, DGKE, ANKRD26 , (...)

View the complete list with 23 more genes
Specificity
3 %
Genes
100 %
Hereditary Myeloid Malignancy and Inherited Bone Marrow Failure Panel.

By Genetic Services Laboratory University of Chicago (United States).

RPL11, RPL15, RPL26, RPL35A, RPL5, RPS10, RPS19, RPS24, RPS26, RPS7, RUNX1, BLM, BRCA1, BRCA2, SRP72, TERC, TERT, TINF2, TP53, WAS , (...)

View the complete list with 58 more genes
Specificity
2 %
Genes
100 %

We have 33 more panels available in our App

Get the app

Sources and references

You can check the following sources for additional information.

ORPHANET OMIM Genetic Syndrome Finder

If you liked this article maybe you will also find interesting the following in-depth articles about other rare diseases, like HYPERALDOSTERONISM, FAMILIAL, TYPE II; HALD2 CHROMOSOME 15q13.3 DELETION SYNDROME MULTIPLE SULFATASE DEFICIENCY; MSD DENYS-DRASH SYNDROME; DDS SPASTIC PARAPLEGIA 30, AUTOSOMAL RECESSIVE; SPG30 AUTOINFLAMMATION, ANTIBODY DEFICIENCY, AND IMMUNE DYSREGULATION, PLCG2-ASSOCIATED; APLAID

Need help with a diagnosis?

Learn more about how to achieve it with Mendelian


Learn more