Myeloid deficiency syndromes include chronic idiopathic neutropenia (CIN), which is an acquired granulomatous disorder characterized by prolonged neutropenia, mild and asymptomatic clinical course [38,39,40], and affects mainly middle-aged women with the HLA-DRB1*1302 type [41]. Here, HLA-DRB1 is linked to Decreased total neutrophil count.