Bernard-Soulier Syndrome, Type A2, Autosomal Dominant, also known as bssa2, is related to autosomal dominant macrothrombocytopenia and qualitative platelet defect, and has symptoms including petechiae of skin An important gene associated with Bernard-Soulier Syndrome, Type A2, Autosomal Dominant is GP1BA (Glycoprotein Ib Platelet Subunit Alpha). Affiliated tissues include neutrophil and skin, and related phenotypes are thrombocytopenia and menorrhagia