Platelet count is decreased in all of the following condition except:: (A) H. S. Purpura, (B) Idiopathic thrombocytopenic purpura, (C) Thrombotic thrombocytopenic purpura, (D) Systemic lupus erythematosus
Answer is A. Answer is A (H. S. Purpura) The mechanism of ecchymosis or purpura in Henoch Schonlein is vasculitis. There is no thrombocytopenia. All other options are known causes of thrombocytopenia.