This is a registry study in adult patients with newly diagnosed or refractory/relapsed myeloid neoplasms Investigator's sites: 80-90 sites in Germany and Austria Estimated duration of observation of an individual patient: 10 years maximum Objectives * To register all patients with AML and related neoplasms, newly diagnosed or relapsed/refractory in all AMLSG participating centers (completeness) * To perform rapid analyses of disease-related genetic markers (incidences, treatment recommendations) * To assess patient and family history, as well as patient characteristics * To evaluate treatment response (CR, CRh, CRi) and outcome data (event-free survival \[EFS\], relapse-free survival \[RFS\], cumulative incidence of relapse \[CIR\], cumulative incidence of death \[CID\], overall survival \[OS\]) * To evaluate the impact of measurable residual disease (MRD) by different methods * To assess biological disease features and correlate with clinical outcome data (prognostic and predictive markers) * To store biosamples from all patients (e.g., bone marrow, blood, plasma, normal tissue; e.g., skin biopsy, finger nails, hairs, sputum, or urine)