RT Book, Section A1 Thompson, Margaret C. A2 Usatine, Richard P. A2 Sabella, Camille A2 Smith, Mindy Ann A2 Mayeaux, E.J. A2 Chumley, Heidi S. A2 Appachi, Elumalai SR Print(0) ID 1114880080 T1 Immune Thrombocytopenia Purpura T2 The Color Atlas of Pediatrics YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-176701-9 LK accesspediatrics.mhmedical.com/content.aspx?aid=1114880080 RD 2024/11/07 AB A 22-month-old boy is brought to his pediatrician by his parents because he has developed several dark purple bruises on his back and spine (Figure 210-1). He has additional bruises over both legs (Figure 210-2) along with smaller bruises over his neck and cheeks. He developed these over the past 2 to 3 days, and his mother reports that 3 weeks prior to this presentation, he had an illness characterized by vomiting, nausea, and diarrhea. The pediatrician suspects immune thrombocytopenic purpura (ITP) and orders a CBC, which shows a normal white blood cell count, differential count, and hemoglobin, but a platelet count of 7,000 microL. His liver function studies, prothrombin time (PT), and partial thromboplastin time (PTT) are all normal. A diagnosis of ITP is made and the child is admitted to the hospital, where his activity is restricted and he is treated with intravenous immunoglobulin. His platelet count increases rapidly over 3 days and he is discharged home with close follow-up.