Idiopathic thrombocytopenic purpura is known as an autoimmune thrombocytopenic purpura. It is characterized by either an acute or gradual onset of petechiae or ecchymoses in the skin and mucous membranes, especially in the mouth. Epistaxis,
conjunctival
hemorrhage, hemorrhagic bullae in the mouth, gingival bleeding, melena, and hematemesis may occur.
We report a case of idiopathic thrombocytopenic purpura in a 10-year-old male, who showed multiple petechiae and ecchymoses on both lower extremities, and hemorrhagic bullae in the mouth. Peripheral blood smear showed decreased platelet count,
and
in
the bone marrow megakeyocytes were incraesed. bleeding time was increased, but coagulation time was normal. (Kor J Dermatol 1992;30(5):684-688)
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