{"created":"2023-06-20T15:49:24.833974+00:00","id":4003,"links":{},"metadata":{"_buckets":{"deposit":"0cfc277d-b88f-4476-a2d3-ade3470ec78a"},"_deposit":{"created_by":4,"id":"4003","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"4003"},"status":"published"},"_oai":{"id":"oai:hama-med.repo.nii.ac.jp:00004003","sets":["1:11"]},"author_link":["12253","12251","12250","12249","12248","12252"],"item_3_biblio_info_5":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-02-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"20","bibliographicPageStart":"16","bibliographicVolumeNumber":"156","bibliographic_titles":[{"bibliographic_title":"耳鼻咽喉科臨床　補冊 = Practica oto-rhino-laryngologica. Suppl."}]}]},"item_3_description_10":{"attribute_name":"注記","attribute_value_mlt":[{"subitem_description":"浜松医科大学医学部耳鼻咽喉科・頭頸部外科学教室　峯田周幸教授退任記念論文集～症例から学ぶ～","subitem_description_type":"Other"},{"subitem_description":"Festschrift for Professor Hiroyuki Mineta In Hornor of His Retirement as Chairman of Hamamatsu University School of Medicine","subitem_description_type":"Other"}]},"item_3_description_9":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Congenital cholesteatoma in the tympanic cavity can be divided into two types - the closed-type cholesteatoma, which takes the form of a keratotic cyst, and the open-type cholesteatoma, characterized by a flat surface of the epidermis on the middle ear mucosa. Closed-type cholesteatoma is usually identified as a globular white mass through a normal tympanic membrane; whereas the tympanic membrane appears normal in open-type cholesteatomas. Therefore, it is difficult to diagnose open-type cholesteatomas, which are often identified accidentally during exploratory tympanotomy for preoperative diagnoses such as conductive hearing loss. Herein, we report a case of open-type cholesteatoma, in which the diagnosis was suspected from the findings of diffusion-weighted MRI examination using the periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) technique.\nAn 18-year-old male presented to our hospital with the complaint of right hearing loss, which was suspected at a previous ENT clinic to be caused by a congenital ossicular anomaly. Otoscopic examination failed to reveal any abnormalities. Pure-tone audiometry showed moderate conductive hearing loss in the right ear. Computed tomography of the temporal bone revealed a defect of the long process of the incus and superstructure of the stapes, with a surrounding shadow that appeared to be soft tissue. On the basis of these findings, we suspected an open-type cholesteatoma with a defect of the ossicles. Diffusion-weighted MRI examination using the PROPELLER technique showed a high-intensity in the temporal bone, suggestive of a cholesteatoma. We performed exploratory tympanotomy, and found the open-type cholesteatoma in the middle ear. The cholesteatoma was removed without ossiculoplasty, and until now, nine months after the surgery, there has been no sign of recurrence.\nOur case showed the usefulness of diffusion-weighted MRI using the PROPELLER technique for the diagnosis of the open-type cholesteatoma. The possibility of open-type cholesteatoma should be borne in mind in patients diagnosed preoperatively as having a congenital ossicular anomaly, and diffusion-weighted MRI with the PROPELLER technique is indicated in such patients towards confirming the diagnosis.","subitem_description_type":"Abstract"}]},"item_3_publisher_6":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"耳鼻咽喉科臨床学会"},{"subitem_publisher":"The Society of Practical Otolaryngology"}]},"item_3_relation_27":{"attribute_name":"医中誌論文ID","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"2021267584","subitem_relation_type_select":"ICHUSHI"}}]},"item_3_relation_28":{"attribute_name":"出版社DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.5631/jibirinsuppl.156.16","subitem_relation_type_select":"DOI"}}]},"item_3_rights_7":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"出版者の許諾を得て掲載"}]},"item_3_source_id_19":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0912-1870","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_20":{"attribute_name":"EISSN","attribute_value_mlt":[{"subitem_source_identifier":"2185-1557","subitem_source_identifier_type":"ISSN"}]},"item_3_version_type_32":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"増田, 守"}],"nameIdentifiers":[{"nameIdentifier":"12248","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中西, 啓"}],"nameIdentifiers":[{"nameIdentifier":"12249","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大和谷, 崇"}],"nameIdentifiers":[{"nameIdentifier":"12250","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"細川, 誠二"}],"nameIdentifiers":[{"nameIdentifier":"12251","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"峯田, 周幸"}],"nameIdentifiers":[{"nameIdentifier":"12252","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岡村, 純"}],"nameIdentifiers":[{"nameIdentifier":"12253","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-04-08"}],"displaytype":"detail","filename":"耳鼻臨床補冊-156-16.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"耳鼻臨床補冊-156-16.pdf","url":"https://hama-med.repo.nii.ac.jp/record/4003/files/耳鼻臨床補冊-156-16.pdf"},"version_id":"8eb71626-5a84-4cb3-829f-0eadc4aaae82"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"PROPELLER technique","subitem_subject_scheme":"Other"},{"subitem_subject":"congenital cholesteatoma","subitem_subject_scheme":"Other"},{"subitem_subject":"MRI examination","subitem_subject_scheme":"Other"},{"subitem_subject":"ossicular anomaly","subitem_subject_scheme":"Other"},{"subitem_subject":"tympanoplasty","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"PROPELLER拡散強調画像による側頭部MRIが診断に有効であったOpen型先天性真珠腫例","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"PROPELLER拡散強調画像による側頭部MRIが診断に有効であったOpen型先天性真珠腫例"},{"subitem_title":"A Case of Congenital Open-Type Cholesteatoma Diagnosed by Diffusion-Weighted MRI Using the PROPELLER Technique","subitem_title_language":"en"}]},"item_type_id":"3","owner":"4","path":["11"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-04-08"},"publish_date":"2022-04-08","publish_status":"0","recid":"4003","relation_version_is_last":true,"title":["PROPELLER拡散強調画像による側頭部MRIが診断に有効であったOpen型先天性真珠腫例"],"weko_creator_id":"4","weko_shared_id":-1},"updated":"2023-06-20T16:20:24.565069+00:00"}