Department of Radiology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
Department of Otolaryngology-Head and Neck Surgery.
Otol Neurotol. 2020 Jul;41(6):745-749. doi: 10.1097/MAO.0000000000002637.
To show the histologic correlate of the cochlear cleft, a small low density focus just anterior to the oval window seen on computed tomography (CT) in three temporal bone specimens.
Three temporal bone specimens donated to the National Temporal Bone Registry from patients aged 34 weeks gestation, 42 years, and 89 years with cochlear clefts seen on CT were studied.
Review and comparison of postmortem high-resolution CT and temporal bone histopathology MAIN OUTCOME MEASURE:: Correlation of CT findings with temporal bone histopathology.
The cochlear cleft visible on CT as a pericochlear lucency anterior to the oval window corresponds to fatty marrow in areas of incomplete endochondral ossification of the otic capsule. The cochlear cleft is distinct from the fissula ante fenestram and can be present in adults.
In these three cases, the cochlear cleft represents an area of fatty marrow from incomplete ossification of the otic capsule and can be present in adults. Care should be taken when interpreting temporal bone CT to avoid mistaking the cochlear cleft for true pathology (otosclerosis) of the temporal bone.
展示在 CT 上观察到的蜗裂的组织学相关性，这是在三个颞骨标本中，在前庭窗前方的小低密度焦点。
研究了三个颞骨标本，这些标本来自于在 CT 上观察到蜗裂的 34 周龄妊娠、42 岁和 89 岁的患者，这些标本捐赠给了国家颞骨登记处。
回顾和比较死后高分辨率 CT 和颞骨组织病理学
CT 发现与颞骨组织病理学的相关性。
CT 上可见的蜗裂，在前庭窗前方呈环绕耳蜗的透亮影，对应于耳廓胶囊不完全软骨内骨化区域的脂肪骨髓。蜗裂与前窗裂不同，也可存在于成人中。
在这三个病例中，蜗裂代表了耳蜗胶囊不完全骨化的脂肪骨髓区域，也可存在于成人中。在解释颞骨 CT 时应小心，避免将蜗裂误认为颞骨的真正病变（耳硬化症）。
