Middle Ear Extramedullary Hematopoiesis: A Case Report

Chitsuda Wacharasindhu MD*, Eliza Niyomthai MD**, Harirak Wanmoung MD***

Affiliation : * Department of Otolaryngology, Bhumibol Adulyadej Hospital, Bangkok, Thailand ** Department of Radiology, Bhumibol Adulyadej Hospital, Bangkok, Thailand *** Department of Pathology, Bhumibol Adulyadej Hospital, Bangkok, Thailand

Background : Extramedullary hematopoiesis (EMH) in the middle ear is exceedingly rare, with fewer than five cases reported. The authors report the first Thai case of middle ear EMH.
Case Report : A 32-year-old Thai thalassemic man presented with complaint of right-sided hearing loss from a middle ear mass. The CT/MRI was done and the diagnosis of EMH was confirmed by a pathological examination after a surgical removal.
Conclusion : A differential diagnosis of EMH should also be done in thalassemic patients presented with a middle ear mass.

Keywords : Extramedullary hematopoiesis, Middle ear, Thalassemia

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