TAR syndrome: TAR stands for Thrombocytopenia (low blood platelets) and Aplasia (absence) of the Radius (the long bone on the thumb-side of the forearm), features characterizing this syndrome. There is phocomelia (flipper-limb) with the thumbs always present. The fibula (the smaller bone in the lower leg) is often absent. The risk of bleeding from too few platelets is high in early infancy but lessens with age. The condition is inherited in an autosomal recessive trait with one gene (on a non-sex chromosome) coming from each parent to the TAR child. Alternative names include thrombocytopenia-absent radius syndrome, radial aplasia-thrombocytopenia syndrome, and tetraphocomelia-thrombocytopenia syndrome.
Thrombocytopenia-absent radius (TAR) syndrome is a rare condition in which thrombocytopenia is associated with bilateral radial aplasia.
n. Congenital absence of the radius accompanied by thrombocytopenia and sometimes by congenital heart disease and renal anomalies. Also called TAR syndrome
Thrombocytopenia-absent radius (TAR) syndrome is a rare condition that is apparent at birth. Affected infants are born with incomplete or missing forearms.
TAR syndrome information including symptoms, diagnosis, misdiagnosis, treatment, causes, patient stories, videos, forums, prevention, and prognosis.
Thrombocytopenia-absent radius (TAR) syndrome is characterized by the absence of a bone called the radius in each forearm. Affected individuals also have a ...