Leukemia, Myeloid, Acute/diagnosis; Sarcoma, Myeloid/diagnosis; Skin Neoplasms/diagnosis; Skin/pathology; Adolescent; Adult; Aged; Aged, 80 and over; Analysis of Variance; Antineoplastic Agents/therapeutic use; Biopsy; Bone Marrow Examination; Chi-Square Distribution; Child; Child, Preschool; Female; Flow Cytometry; Humans; Immunohistochemistry; Infant; Infant, Newborn; Karyotyping; Leukemia, Myeloid, Acute/drug therapy; Leukemia, Myeloid, Acute/genetics; Leukemia, Myeloid, Acute/mortality; Leukemia, Myeloid, Acute/pathology; Male; Middle Aged; Missouri; Predictive Value of Tests; Retrospective Studies; Sarcoma, Myeloid/drug therapy; Sarcoma, Myeloid/genetics; Sarcoma, Myeloid/mortality; Sarcoma, Myeloid/pathology; Skin Neoplasms/drug therapy; Skin Neoplasms/genetics; Skin Neoplasms/mortality; Skin Neoplasms/pathology; Tertiary Care Centers; Time Factors; Treatment Outcome; Young Adult