[Dysphagia and tonsillitis in a 25-year-old male patient : The nearly forgotten severe complication of a common ailment].

We report the case of a patient with a severe dysphagia accompanying progressive tonsillitis. The clinical examination supported the possibility of a severe septic soft tissue infection. The blood cultures revealed a largely anaerobic sepsis with Fusobacterium necrophorum. This unusual pathogen is the most common cause of Lemierre's syndrome. A duplex sonogram and magnetic resonance imaging (MRI) of the neck region and vessels suggested a thrombophlebitis of the left internal jugular vein with partial occlusion, so that Lemierre's syndrome could be diagnosed. The patient was treated with appropriate antibiotics according to the resistogram and also with rivaroxaban.