title: Agnogenic myeloid metaplasia with ear involvement.
abstract: A 52-year-old man with agnogenic myeloid metaplasia had a sudden onset of pain and bleeding from the left ear and an associated decrease in hearing acuity on that side. Examination revealed a friable mass that filled the middle ear and protruded through a perforated tympanic membrane. Special staining of a tissue specimen of the mass revealed myeloid metaplasia. Otorhinolaryngologists should be aware of the fact that the ear can be involved in hematopoietic disorders.
mesh_terms: D004427:Ear Diseases / Q000209:etiology*; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D055728:Primary Myelofibrosis / Q000150:complications*; D014432:Tympanic Membrane