Radial Aplasia-Thrombocytopenia Syndrome

**Semantic type:** Disease or Syndrome

**Definition:** A rare syndrome characterized by the presence of thrombocytopenia associated with bilateral absence of the radius bone.

**Synonyms:** - Chromosome 1q21.1 Deletion Syndrome, 200-Kb - TAR - TAR Syndrome - TAR Syndrome - Thrombocytopenia-Absent Radius Syndrome - Thrombocytopenia-Absent Radius Syndrome