Rapid diagnosis of Lemierre’s syndrome by metagenomic next-generation sequencing: a case report

Lemierre's syndrome, also known as postopharyngeal septicaemia or necrobacillosis, is a rare, fatal opportunistic infection, often caused by <i>Fusobacterium necrophorum</i> invading the throat. Bacterial culture is a conventional method to establish a diagnosis, but is time-consuming and insensitive in some cases. Metagenomic next-generation sequencing (mNGS), as an emerging technique, has become an important supplementary detection method for infectious diseases. It greatly favors the rapid, precise diagnosis and treatment of Lemierre's syndrome through accurately obtaining etiological information. We reported a case of Lemierre's syndrome that was rapidly and accurately diagnosed by mNGS.