3 sentences

1. 我误诊了她的溃疡。

   wǒ wù​zhěn le tā de kuì​yáng.

   I misdiagnosed her ulcer.

   Source: OpenSubtitles

2. 医生最初将他的症状误诊为流感。

   yī​shēng zuì​chū jiāng tā de zhèng​zhuàng wù​zhěn wéi liú​gǎn.

   The doctor initially misdiagnosed his symptoms as the flu.

   Source: Dong Chinese Dictionary

3. 该检测手段具有较高的特异性，误诊率极低。

   gāi jiǎn​cè shǒu​duàn jù​yǒu jiào gāo de tè​yì​xìng, wù​zhěn lǜ jí dī.

   This testing method has high specificity and an extremely low misdiagnosis rate.

   Source: Dong Chinese Dictionary