A young adult patient presents with a history of prolonged bleeding after dental procedures and frequent bruising. Her laboratory tests reveal prolonged bleeding time, normal platelet count, and normal PT/INR. She has a family history of similar bleeding issues. Tests indicate a deficiency in a specific blood factor that affects both platelet function and the coagulation pathway. What is the most likely diagnosis?

• von Willebrand Disease
• Immune thrombocytopenia
• Hemophilia A
• Thrombotic Thrombocytopenic Purpura (TTP)