| A rare genetic coagulation disorder with characteristics of mild to moderate bleeding tendency due to impaired platelet activation and aggregation in response to collagen, or impaired platelet-vessel wall interaction, resulting from a collagen receptor defect. Patients manifest with ecchymoses, epistaxis, menorrhagia, and/or post-traumatic and post-surgery bleeding complications. Laboratory analysis reveals prolonged bleeding time and occasionally mild thrombocytopenia. |