Korean J Otorhinolaryngol-Head Neck Surg.  2024 Jun;67(6):344-348. 10.3342/kjorl-hns.2023.00843.

A Case of Extramedullary Relapse of Acute Promyelocytic Leukemia in the External Auditory Canal and Temporal Bone

Affiliations
  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, Seoul, Korea

Abstract

Extramedullary relapse of acute promyelocytic leukemia is rare and has been reported in 3%- 5% of patients. Relapse in the external auditory canal and the temporal bone is even more uncommon and scarcely reported. We encountered a 69-year-old male who complained about right ear pain and hearing loss. The patient had extramedullary relapse of acute promyelocytic leukemia in the right external auditory canal and in the temporal bone.

Keyword

Acute promyelocytic leukemia; External auditory canal; Extramedullary myeloid cell tumor; Relapse; Temporal bone
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