医生错误地将他的头痛诊断为偏头痛，实际上是脑部感染。

The doctor ___misdiagnosed his headache as a migraine, but it was actually a brain infection.

医生最初将她的头痛误诊为偏头痛，实际上是视力问题。

The doctor initially ___misdiagnosed her headache as a migraine when it was actually a vision problem.