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目的探讨颞骨结构所致的外伤后误诊为骨折的HRCT识别结果。方法取38例患者使用SOMATOM spirit CT扫描仪进行颞骨检查,32例同时行横断位及冠状位扫描,6例仅行横断位检查。结果38例(53耳)患耳内,颞骨未见骨折征象30耳,鼓室腔、乳突积血9耳,乳突软组织影3耳;耳部软组织肿胀、积气2耳,颅内积气2耳;颞骨鳞部骨折3耳,乳突部骨折2耳,鳞部、岩部骨折1耳,鼓部、乳突部骨折1耳。单管15耳,耳蜗水管11耳,乳突管9耳,鼓室小管8耳,岩乳管误认为颞骨骨折7耳,枕乳缝3耳。结论熟悉并正确地认识颞骨相邻或自身的各种骨缝、颞骨的各种骨性管道,可以减少颞骨骨折的误诊。
Objective To investigate the HRCT identification of misdiagnosed fractures caused by temporal bone structure after trauma. Methods Thirty-eight patients underwent temporal bone examination with SOMATOM spirit CT scanner. Twenty-two patients underwent simultaneous transverse and coronal scan, and 6 patients underwent transverse scan only. Results There were no signs of fracture in the ear and the temporal bone in 38 cases (53 ears), 30 ears in the tympanic cavity, 9 ears in the tympanic cavity, 9 ears in the papillae, 3 ears in the mastoid soft tissue, 2 ears in the ear, 2 ears; temporal bone squamous fracture 3 ears, mastoid fracture 2 ears, scales, rock fracture 1 ear, drum, mastoid fracture 1 ear. Single ear 15 ear, cochlear ear 11 ear, mastoid tube 9 ear, tympanic canal 8 ear, rock tube mistaken for temporal bone fracture 7 ears, occipital milk stitches 3 ears. Conclusion Familiar with and correct understanding of the adjacent temporal bone or all kinds of bone seams, temporal bone of various bile duct, can reduce the misdiagnosis of temporal bone fracture.