An aberrant internal carotid artery in the middle ear is a rare otological finding.

摘要中耳腔之异位内动脉，文献少。

Dehiscence of the floor of the hypotympanum with protrusion of the jugular bulb into the middle ear cavity is a rare otological finding.

摘要静脉球室底部骨层裂隙膨入中耳腔，是一种罕见的中耳腔血管异常。