A rare case of middle ear osteoma with conductive hearing loss mimicking otosclerosis in a young woman

Introduction:

Osteomas of the temporal bone are usually located in the external auditory canal while osteomas of the middle ear cavity are very rare and only a few cases are reported to date. These are benign and unilateral neoplasms with progressive conductive hearing loss. We herein report a case of an incidentally detected middle ear osteoma.

Case report:

A 27-year-old woman presented with a right sided conductive hearing loss to our clinic. Otomicroscopy showed an intact tympanic membrane. Due to absent right sided stapedius reflexes otosclerosis was suspected and stapesplasty was planned. During surgery an osteoma surrounding the incostapedial joint was detected. The osteoma could be removed entirely leaving the ossicular chain intact. Histopathological examination confirmed the clinical diagnosis. 2 weeks after surgery during follow-up examination the air-bone gap was improved and right sided stapedius reflexes reoccurred.

Discussion:

Middle ear osteomas are very rare tumors of the temporal bone causing conductive hearing loss. We will discuss the management and report a case of a middle ear osteoma in a young patient mimicking otosclerosis which could be treated surgically preserving the ossicular chain.

Dr. med. Bahramm Ramez

Vivantes Klinikum im Friedrichshain/Hals-Nasen-Ohrenklinik,

Landsberger Allee 49, 10249

Berlin

eMail: [e-mail]

Publikationsverlauf

Publikationsdatum:
23. April 2019 (online)