Abstract
Temporal bone findings in two cases of head injury are reported.In one patient, longitudinal fractures occurred in bilateral temporal bones, and extended to middle ear in both sides. Bleeding was seen in the tympanic cavity, mastoid air cells, internal auditory canal and facial nerve canal. Bleeding was observed in scala tympani, cochlear aqueduct and endolymphatic sac, but there were no fractures.In the other patient, bleeding was seen in the internal auditory canal an d facial nerve canal. In right ear, endolymphatic hydrops was observed in all turns of cochlea, but this finding may be inaccurate, because the basilar membrane and osseous spiral lamina curved slightly toward the scala vestibuli like Reissner's membrane.
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