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Case Reports
. 2022 Apr 22;15(4):e245334.
doi: 10.1136/bcr-2021-245334.

Osteomas of temporal bone: a rare presentation

Nethra Dinakaran  1 , Vivekanandan Balakumar  2 , Prasanna Kumar Saravanam  3
Affiliations
Case Reports

Osteomas of temporal bone: a rare presentation

Nethra Dinakaran et al. BMJ Case Rep. .

Abstract

Osteoma of the temporal bone is an unusual benign slow-growing tumour composed of mature lamellar bone. It is a single pedunculated mass that often occurs unilaterally. Osteomas of external auditory canal are more common than in the other parts of temporal bone. Clinical presentation includes ear pain, hearing loss, tinnitus or vertigo. More often these lesions are an incidental finding during radiographic evaluation. Surgical excision of the osteoma is preferred in cases with impending complications. Here, we report a 36-year-old woman who came with problems of ear discharge, ear pain, hearing loss and occasional bleeding from the ear. She was diagnosed with osteoma of temporal bone with erosion of lateral semicircular canal and facial canal. Osteoma was excised and the defective areas were reconstructed.

Keywords: Ear, nose and throat; Neurootology; Pathology.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
High Resolution Computed Tomography temporal bone. Axial section showing a hyperdense lesion in the left external auditory canal.
Figure 2
Figure 2
HRCT temporal bone. Coronal plane showing erosion of left lateral semicircular canal.
Figure 3
Figure 3
HRCT temporal bone showing a hyperdense lesion in the left mastoid antrum.
Figure 4
Figure 4
Intraoperative picture showing a bony lesion in the left mastoid antrum.
Figure 5
Figure 5
Intraoperative picture showing temporalis fascia graft being placed over the defective areas.
Figure 6
Figure 6
Histopathology (10×). Fragments of bone composed of predominantly lamellar bone with focal woven bone and surrounded by paucicellular fibrous stoma.
See this image and copyright information in PMC

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