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Diagnosis: Idiopathic Thrombocytopenic Purpura (ITP)
Description: Petechiae on the forearm
Morphology: Purpura
Site: Arms and Legs
Sex: F
Age: 75
Type: Clinical
Submitted By: Ian McColl
Differential DiagnosisHistory:
Idiopathic thrombocytopenic purpura usually follows a viral infection in the elderly.A non blanching purpuric rash can occur anywhere on the skin surface.