What are characteristics of thrombocytopenia-absent radius (TAR)-caused aplastic anemia?

Updated: Jan 29, 2021
  • Author: Sameer Bakhshi, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Thrombocytopenia-absent radius (TAR) syndrome is characterized by deletions located at chromosome 1q21.1 (which are typically about 200kb in size). Patients have bilateral absence of the radii with presence of the thumbs, as well as thrombocytopenia. Other congenital anomalies can also occur (eg, cardiac disease, skeletal anomalies, urogenital anomalies).

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