DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20213910

External auditory canal osteoma: a case report

Sneha S., Sowmya Gajapathy, Srikanth G., Ramesh V., Jayita Das Poduval

Abstract


External auditory canal (EAC) osteomas are rare, solitary benign unilateral lesion. Small lesions are incidentally diagnosed and larger lesions produce symptoms of pain, ear discharge and defective hearing. Diagnosis is made based on a combination of clinical history and examination, radiographic imaging, and histopathology. They are usually confused with exostosis which are multiple, bilateral, smooth-bordered, broad-based lesions without deep extension. We present a case of 21-year-old male patient who came to our outpatient department, with complaints of left ear blocking sensation for past 6 months. On evaluation, it was diagnosed as left EAC osteoma and the same was excised via post-auricular approach. This case is being presented for its rarity


Keywords


Osteoma, EAC, Exostosis

Full Text:

PDF

References


Graham MD. Osteomas and exostoses of the external auditory canal. A clinical, histopathologic and scanning electron microscopic study. Ann Otol Rhinol Laryngol. 1979;88(4Pt1):566-72.

Fenton JE, Turner J, Fagan PA. A histopathologic review of temporal bone exostoses and osteomata. Laryngoscope. 1996;106:624-8.

Sheehy JL. Diffuse exostoses and osteoma of the external auditory canal: a report of 100 operations. Otolaryngol Head Neck Surg. 1982;90:337-42.

Gungor A, Cincik H, Poyazoglu E. Mastoid osteomas: report of two cases. Otol Neurotol. 2004;25:95-7.

Abhilasha S, Viswanatha B. Osteomas of temporal bone: a retrospective study. Indian J Otolaryngol Head Neck Surg. 2019;71(2):1135-9.

Mahalle S. Osteoma of external auditory canal associated with external auditory canal cholesteatoma and exuberant granulation tissue in mastoid air cell system: a rare association. Indian J Otolaryngol Head Neck Surg. 2019;71(2):1505-7.

Gheorghe DC, Stanciu AE, Ulici A. Bilateral external ear canal osteomas: discussion on a clinical case. J Med Life. 2016;9(4):434-6.

Kim HY, Song CJ, Yoon CD, Park MH, Shin BS. CT Findings of the Osteoma of the External Auditory Canal. Korean Radiol Soc. 2006;55(1):33-7.

Michaels L. Neoplasms of the external ear. In: Ear, Nose and Throat Histopathology. London: Springer-Verlag. 1987;63-5.

Bilkay U, Erdem O, Ozek C, Helvacj E, Kilic K, Ertan Y, Gurler T. Benign osteoma with Gardner syndrome: review of the literature and report of a case. J Craniofacial Surg. 2004;15:506-9.

Baik FM, Nguyen L, Doherty JK, Harris JP, Mafee MF, et al. Comparative case series of exostoses and osteomas of the internal auditory canal. Ann Otol Rhinol Laryngol. 2011;120(4):255-60.

Pulec JL, Deguine C. Osteomas of the external auditory canal. Ear Nose Throat J. 1993;72:112.

Schuknecht H. Exostoses of external auditory canal. In: Pathology of the Ear. Philadelphia: Lea and Febiger. 1993;398-9.

Fisher EW, McManus TC. Surgery for external auditory canal exostoses and osteomata, J Laryngol Otol. 1994;108:106-10.

Grinblat G, Prasad SC, Piras G, He J, Taibah A, Russo A et al. Outcomes of Drill Canaloplasty in Exostoses and Osteoma: Analysis of 256 Cases and Literature Review. Otol Neurotol. 2016;37(10):1565-72.

Salami A, Mora R, Dellepiane M. Piezosurgery® for removal of symptomatic ear osteoma. Eur Arch Otorhinolaryngol. 2010;267:1527-30.

Khoyratty F, Sweed A, Douglas S, Magdy T. Osteoma with cholesteatoma of the external auditory canal: neck manifestation of this rare association. J Surg Case Rep. 2013;6:2013:rjt048.

Ata N, Vet A, Alatas G. External auditory canal osteoma with cholesteatoma and sinus thrombosis. J Craniofac Surg. 2015;26(7):2234-5.

Iaccarino I, Bozzetti F, Piccioni LO. A case of external auditory canal osteoma complicated with cholesteatoma, mastoiditis, labyrinthitis and internal auditory canal pachymeningitis. Acta Otorhinolaryngol Ital. 2019;39(5):358-62.