Detection of mutant IDH1R132H and high levels of TP53 and PDGFRα suggested the PN subtype, high levels of EGFR evidenced the CL subtype, and high levels of CHI3L1/YKL40, CD44 and phospho-STAT3 were typical for the MES subtype. The gene discussed is CD44; the disease is poikiloderma with neutropenia.