Clinical Findings On examination no abnormal findings other than those related to bleeding An enlarged spleen should lead one to doubt the diagnosis Common signs of bleeding are purpura, petechiae, and hemorrhagic bullae in the mouthClinical Findings • On examination： no abnormal findings other than those related to bleeding. An enlarged spleen should lead one to doubt the diagnosis. Common signs of bleeding are purpura, petechiae, and hemorrhagic bullae in the mouth