RT Book, Section A1 Mayeaux, Jr., E.J. A1 Usatine, Richard P. A1 Martin, Nathan S. A1 Williams, Leah T. A2 Usatine, Richard P. A2 Smith, Mindy A. A2 Mayeaux, Jr., E.J. A2 Chumley, Heidi S. SR Print(0) ID 1164362099 T1 Vasculitis T2 The Color Atlas and Synopsis of Family Medicine, 3e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259862045 LK accessmedicine.mhmedical.com/content.aspx?aid=1164362099 RD 2024/03/28 AB A 21-year-old woman presented with a 3-day history of a painful purpuric rash on her lower extremities (Figures 187-1 and 187-2). 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), also known as IgA vasculitis.