Razi Journal of Medical Sciences

    TAR syndrome (thrombocytopenia-Absent Radii) is characterised by the neonatal onset thrombocytopenia and bilateral absence or hypoplasia of the radii with normal organs. This syndrome is a rare hereditary condition with a recessive autosomal character. During the first months of life, prognosis is related to the severity of hemorrhage. This paper focuses on three infants who suffered from Thrombocytopenia-Absent Radii(TAR) syndrome. All cases revealed bilateral micromelia of upper limbs, short and radially curved fore arms and hypoplastic arms at birth. These symptoms as well as severe thrombocytopenia confirmed the clinical diagnosis of Thrombocyopenia-Absent Radii(TAR). All three cases had multiple hemorrhages in neonatal period and also in the first year of their lives, however, they are in good condition right now. One of them needed prosthesis at the age of 7 but the two others are alive and being followed up.