<prompt> Which of the following isare not the features of Henoch-Schonlein purpura HSP?Abdominal painSplinter hemorrhageThrombocytopeniaEpistaxis  <response>: c. ThrombocytopeniaRef: Nelsons 20e p 1612, Ghai 8e p 632HSP is characterized by a tetrad of palpable purpura, arthritis, glomerulonephritis and abdominal painLess common skin lesions are macules, vesicles, bullous lesions, splinter hemorrhage and ulcerations; Rarely, epistaxis may occur. 