Diagnostic value of osseous diversity on CT to sinonasal inverted papilloma / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To evaluate the CT characteristics of osseous diversity in patients with sinonasal inverted papilloma (SIP) and to correlate these characteristics with the origins of tumors.</p><p><b>METHODS</b>Sinonasal CT images of 28 patients were reviewed retrospectively to detect areas within which there was focal hyperostosis. The correlation between the sites on the CT scans within which there was osseous diversity and the origin of the tumors in the surgery was analyzed.</p><p><b>RESULTS</b>Surgical evaluation of 22 lesions with focal hyperostosis in CT images revealed that 20 of these lesions coincided with the actual origin of tumor. The focal hyperostosis on CT images corresponded to the actual tumor origin in 71.4% of cases. It denotes the origin of SIP could be predicted from the focal hyperostosis site. The origin of the other 2 cases were disaccord with the focal hyperostosis site, one case had the origin of uncinate process but hyperostosis of anterior middle turbinate, another case had the origin of superior turbinate but hyperostosis of uncinate process. Nine lesions of 28 patients had air sign, 21 lesions had bone absorption and destruction and 19 lesions had bone displacement in CT images. The pressure from tumor growth can induce varied bone destruction and displacement, the source of SIP can be estimated by the bone destruction site and displacement direction.</p><p><b>CONCLUSIONS</b>There has a relatively high concordance between the origin of the SIP and focal hyperostosis on CT, The source of SIP could be discerned indirectly by bone destruction and displacement, these conduce to assess the disease before surgery and make pertinent operation.</p>

Cochlear implantation with suprameatal approach in Chinese children / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To investigate the technique of the suprameatal approach for cochlear implantation in Chinese profound sensory hearing loss children.</p><p><b>METHODS</b>Suprameatal approach for cochlear implantation were used in 50 cases (total 53 ears) with profound sensory hearing loss from May 2005 to January 2007. The electrode was passed through the suprameatal tunnel and went between the incus and chorda tympani into the scala tympani.</p><p><b>RESULTS</b>Electrodes were completely inserted in 51 ears. There were no postoperative complications in all cases. Although the long effect need to be observed, all cases received better hearing and speech development benefit from cochlear implantation in the follow-up period. Among the 50 cases, 26 had speech perception in the open condition; 18 patients could speak short sentences although not clearly; and 6 patients learned to speak individual words only.</p><p><b>CONCLUSIONS</b>The suprameatal approach was found to be a simple and safe technique that does not need mastoidectomy and avoid endangering the facial nerve and the chorda tympani. It enables wide exposure of middle ear and is especially suitable for cases with narrow facial recess or anteriorly located facial nerve.</p>