RT Book, Section A1 Sivapalaratnam, Suthesh A1 Rao, A. Koneti A1 Ouwehand, Willem A1 Freson, Kathleen A2 Kaushansky, Kenneth A2 Prchal, Josef T. A2 Burns, Linda J. A2 Lichtman, Marshall A. A2 Levi, Marcel A2 Linch, David C. SR Print(0) ID 1180468717 T1 Inherited Platelet Disorders T2 Williams Hematology, 10e YR 2021 FD 2021 PB McGraw-Hill Education PP New York, NY SN 9781260464122 LK accessmedicine.mhmedical.com/content.aspx?aid=1180468717 RD 2024/04/24 AB SUMMARYThis chapter describes the classification, pathophysiology, clinical evaluation, and management of quantitative and qualitative inherited platelet disorders. Whereas some platelet disorders only result in bleeding, others are part of a broader clinical syndrome. Even with signs of bleeding, there is a large variability among patients. Bleeding is principally evident by excessive hemorrhage at mucocutaneous sites, ecchymoses, petechiae, epistaxis, gingival hemorrhage, and menorrhagia. The hereditary platelet disorders can be classified according to the underlying genetic mutation and the role the corresponding protein has in megakaryocyte and platelet production (Figs. 119–1 and 119–2). Furthermore, recommendations on how and when to use genomic analyses and deep sequencing in the diagnosis of possibly novel pathways that result in inherited platelet disorders are provided.1,2