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KMID : 0390220200310020200
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Journal of Clinical Otolaryngology, Head and Neck Surgery
2020 Volume.31 No. 2 p.200 ~ p.204
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A Case of Giant Osteoma Located across the Parietal and Temporal Bones
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Kim Yee-Hyuk
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Abstract
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Osteoma often develops in the skull and facial bones, most frequently in the paranasal sinuses, but rarely develops in the temporal bone. Temporal osteoma is most commonly seen in the external auditory meatus, followed by in the mastoid process. Although temporal osteoma can vary in size, it does not exceed 3 cm in most cases. In this case, a 64-year-old woman presented with a left-sided skull mass located behind the auricle that had grown gradually in size over the past 40 years. The mass was a giant osteoma exceeding 3 cm in diameter (maximum diameter, 3.2 cm) located across the upper mastoid process, posterior temporal squama, parietomastoid suture, asterion, and inferior parietal bone. The lesion was successfully removed surgically. We report this case and review the related literature.
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KEYWORD
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Osteoma, Temporal bone, Parietal bone
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