Relapse of acute promyelocytic leukemia in the external auditory canal confirmed by PML/RARA dual-fusion and RARA break-apart fluorescence in situ hybridization.

Abnormal Karyotype Antineoplastic Agents/therapeutic use Arsenic Trioxide Arsenicals/therapeutic use Combined Modality Therapy DNA Probes Ear Canal/pathology Hematopoietic Stem Cell Transplantation Humans In Situ Hybridization, Fluorescence Leukemia, Promyelocytic, Acute/drug therapy,genetics,pathology,therapy Leukemic Infiltration/genetics,pathology Male Middle Aged Oncogene Proteins, Fusion/genetics Oxides/therapeutic use Positron-Emission Tomography RNA, Messenger/genetics RNA, Neoplasm/genetics Recurrence Tomography, X-Ray Computed WT1 Proteins/genetics