Comparison To Gray Platelet Syndrome
Pseudo-gray platelet syndrome differs from gray platelet syndrome (GPS), one of the giant platelet syndromes. GPS is characterized by "thrombocytopenia, abnormally large agranular platelets in peripheral blood smears, and almost total absence of platelet alpha-granules and their constituents." The defect in GPS is the failure of megakaryocytes to package secretory proteins into alpha-granules. Patients with the GPS are affected by mild to moderate bleeding tendencies.
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