固有鼻腔内骨様組織の２症例

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  • Bone Fragments in the Nasal Cavity, A Report of Two Cases.

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Bone fragments in the nasal cavity are rarely observed. The following two case reports describe a rhinolith and an ectopic tooth in the nasal cavity.<br>Case 1. A 68-year-old male with recurrent epistaxis on both sides of the nose had a hard immobile bone fragment in the posterior portion of each side of the nasal cavity X-ray examination showed a transversely placed, sharply defined, homogeneous calcified lesion in both nasal cavities. The calcification was considered to have dropped from the choanae spontaneously. The rhinolith had bone fragments as its nucleus.<br>Case 2. A 54-year-old female who had been aware of nasal obstruction, purulent rhinorrhea and epistaxis on the right side for 3 years. Nasal examination showed a hard immobile mass located between the nasal septum and the inferior turbinate. X-ray examination showed a fully developed ectopic tooth on the right side of the nasal cavity. Under local anesthesia, the ectopic tooth was removed by the intranasal approach and it was identified as a canine tooth.

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