RT Book, Section A1 Usatine, Richard P. A1 Smith, Mindy A. A1 Chumley, Heidi S. A1 Mayeaux, E.J. SR Print(0) ID 57682323 T1 Chapter 179. Vasculitis T2 The Color Atlas of Family Medicine, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176964-8 LK accessmedicine.mhmedical.com/content.aspx?aid=57682323 RD 2024/09/10 AB A 21-year-old woman presented with a 3-day history of a painful ­purpuric rash on her lower extremities (Figure 179-1 and Figure 179-2). The lesions had appeared suddenly, and the patient had experienced no prior similar episodes. The patient had been diagnosed with a case of pharyngitis earlier that week and was given a course of clindamycin. She had not experienced any nausea or vomiting, fever, abdominal cramping, or gross hematuria. Urine dipstick revealed blood in her urine, but no protein. The typical palpable purpura on the legs is consistent with Henoch-Schönlein purpura (HSP).