Lymph node abscess caused by Francisella tularensis - a rare differential diagnosis for cervical lymph node swelling: a case report.

In patients with cervical lymph node swelling caused by infection it is indispensable to perform specific identification of the pathogen for further local and specific antibiotic treatment. Possible infections with atypical bacteria like Francisella tularensis should never be ignored. Universal polymerase chain reactions are a suitable method for early detection of such rare pathogens.