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Current Medical Imaging


ISSN (Print): 1573-4056
ISSN (Online): 1875-6603

Case Report

Multiple Osteomas of Eustachian Tube Causing Ipsilateral Otitis Media

Author(s): Suzan Saylisoy*

Volume 16, Issue 8, 2020

Page: [1052 - 1054] Pages: 3

DOI: 10.2174/1573405616666200606215737

open access plus


Background: Middle ear ventilation and the drainage of secretions are the basic functions of the eustachian tube. Eustachian tube (ET) dysfunction can lead to otitis media. Multiple causes of ET dysfunction exist; ET obstruction is one of them. Osseous obliteration of ET is quite rare. In the literature, there are two cases of solitary osteoma and a case of hamartoma with an osseous content in the ET. Herein, this report describes the case of a patient with multiple osseous lesions consistent with osteomas in the ET, causing ipsilateral otitis media with CT findings.

Case Report: A 53-year-old woman presented with left-sided intermittent otalgia and otorrhea. Temporal bone computed tomography showed opacification of middle ear consistent with otitis media and nearly complete blockage of the left ET lumen with multiple osseous lesions wall probably consistent with osteomas on the left side.

Conclusion: There are limited data about the radiological features of ET osteoma due to its rare occurrence. Radiographically, external ear osteoma generally appears as a single pedunculated hyperdense mass on CT scan originating from the tympanosquamous or tympanomastoid suture line and extending into the auditory canal with otherwise preserved canal dimensions. Considering this information, osseous lesions arising from ET bone wall and extending into the lumen in the present case were considered as osteomas. Especially in the case of unilateral chronic otitis media, ET should not remain a neglected anatomical area.

Keywords: Temporal bone, eustachian tube, middle ear, osteoma, chronic otitis media, computerized tomography.

Graphical Abstract
Sharma K, Manjari M, Salaria N. Middle ear cleft in chronic otitis media: a clinicohistopathological study. Indian J Otolaryngol Head Neck Surg 2013; 65(Suppl. 3): 493-7.[] [PMID: 24427703]
Smith ME, Scoffings DJ, Tysome JR. Imaging of the Eustachian tube and its function: a systematic review. Neuroradiology 2016; 58(6): 543-56.[] [PMID: 26922743]
Lou Z, Lou Z. Anatomical anomalies of the Eustachian tube and chronic otitis media. Am J Otolaryngol 2018; 39(3): 359-60.[] [PMID: 29395282]
Hildyard VH, Compere WE Jr. Osteoma of the eustachian tube. Laryngoscope 1959; 69: 1524-7.[] [PMID: 13852335]
Li Y, Li Q, Gong S, Liu H, Yu Z, Zhang L. Multiple osteomas in middle ear. Case Rep Otolaryngol 2012; 2012: 685932.[] [PMID: 22928138]
Kawamoto A, Katori Y, Honkura Y, Ogura M, Oshima T, Kobayashi T. Osseous hamartoma arising from the eustachian tube. Clin Pract 2013; 3(2): e25.[] [PMID: 24765513]
Conticello S, Saita V, Ferlito S, Paterno A. Computed tomography in the study of the eustachian tube. Arch Otorhinolaryngol 1989; 246(5): 259-61.[] [PMID: 2590029]
Muzzi E, Cama E, Boscolo-Rizzo P, Trabalzini F, Arslan E. Primary tumors and tumor-like lesions of the eustachian tube: a systematic review of an emerging entity. Eur Arch Otorhinolaryngol 2012; 269(7): 1723-32.[] [PMID: 22160144]
Pawlowski ME, Shrestha S, Park J, Applegate BE, Oghalai JS, Tkaczyk TS. Miniature, minimally invasive, tunable endoscope for investigation of the middle ear. Biomed Opt Express 2015; 6(6): 2246-57.[] [PMID: 26114043]
Hsiao SH, Liu TC. Osteoma of the external ear canal. Otol Neurotol 2003; 24(6): 960.[] [PMID: 14600483]
Syed AZ, Hawkins A, Alluri LS, et al. Rare finding of Eustachian tube calcifications with cone-beam computed tomography. Imaging Sci Dent 2017; 47(4): 275-9.[] [PMID: 29279828]
Wu J, Schulte J, Yang C, Baroody F, Ginat DT. Hairy Polyp of the Nasopharynx Arising from the Eustachian Tube. Head Neck Pathol 2016; 10(2): 213-6.[] [PMID: 25939422]
Shim WS, Kim YS, Shin DK, Jung HJ. A case of otitis media with effusion due to leiomyoma of the Eustachian tube Braz J Otorhinolaryngol 2017.[]

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