Problem: A patient presents with spontaneous bruising and petechiae. Laboratory tests reveal thrombocytopenia and anemia, with blood smears showing fragmented red blood cells. The patient has no history of bleeding disorders. What is the most likely underlying cause of this patient's signs and symptoms? O von Willebrand Disease • Hemophilia B • Disseminated intravascular coagulation (DIC) • Deficiency of ADAMTS13 enzyme