Severe epistaxis disease

Eight-year-old Elise arrives at the clinic with severe epistaxis disease. On examination, a generalized purple petechial rash and hemorrhage bullae on her gums and lips are detected. She and her parents cannot recall any recent injuries, and the epistaxis began spontaneously that morning. Her only recent health issue was an upper respiratory infection 2 weeks ago. Her blood analyses indicate thrombocytopenia, and the few platelets are large. The Ivy bleeding time is prolonged, and bone marrow aspiration demonstrates increased megakaryocytes and normal erythrocytes and granulocytes. Her hemoglobin and hematocrit are in the low normal range.

Answer the following questions about Elise’s situation.

What disorder would a healthcare provider suspect?  What causes this disorder? What is the likelihood that Elise will recover?