system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following is/are not the features of Henoch-Schonlein purpura (HSP)?
assistant
The correct answer is  c. Thrombocytopenia(Ref: Nelson's 20/e p 1612, Ghai 8/e p 632)HSP 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.