Synonyms: GPS, gray platelet syndrome, platelet alpha-granule deficiency
Grey platelet syndrome (GPS) is a rare, congenital disorder which causes a bleeding disorder. The platelets are large and have a grey appearance on light microscopy.1 It is one of the macrothrombocytopenias, which are inherited thrombocytopenias with increased platelet size.2
This is a companion discussion topic for the original article at https://patient.info/doctor/haematology/gray-platelet-syndrome.htm