Idiopathic (autoimmune) thrombocytopenic purpura (ITP) typically presents with which of the following?

• A. Presents with severe splenomegaly and thrombocytopenia
• B. Often asymptomatic with mucocutaneous bleeding and no splenomegaly
• C. Rapid neurologic deterioration due to intracranial hemorrhage
• D. Immediate splenectomy is required at diagnosis

Answer: (B)

ITP is an autoimmune process where antibodies target platelets, leading to a low platelet count and a tendency to bleed. The classic presentation is mucocutaneous bleeding—petechiae, easy bruising, and sometimes nose or gum bleeding—without enlargement of the spleen. Many patients feel otherwise well, so they can be asymptomatic aside from these bleeding signs. Coagulation studies are usually normal because the problem is platelet number, not clotting factor defects. The spleen isn’t enlarged because the issue is destruction of platelets, not sequestration or infiltration. Intracranial hemorrhage can occur but is rare and indicates severe thrombocytopenia rather than the typical starting picture. Splenectomy is not done immediately; it’s reserved for chronic, refractory cases after medical therapy has been tried.