Qualitative Platelet Defect, also known as qualitative platelet deficiency, is related to platelet disorder, familial, with associated myeloid malignancy and factor v deficiency. An important gene associated with Qualitative Platelet Defect is VWF (Von Willebrand Factor), and among its related pathways/superpathways are Signal Transduction and Response to elevated platelet cytosolic Ca2+. The drugs Protein Kinase Inhibitors and Enzyme Inhibitors have been mentioned in the context of this disorder. Affiliated tissues include bone marrow and whole blood, and related phenotypes are homeostasis/metabolism and cellular