MONDO_0018540 (PFAPA syndrome) is an auto inflammatory syndrome characterized by recurrent febrile episodes associated with aphthous stomatitis, pharyngitis and cervical adenitis. Also known as: Marshall syndrome with periodic fever, PFAPA, periodic fever, aphthous stomatitis, pharyngitis and adenitis, periodic fever, aphthous stomatitis, pharyngitis, adenitis syndrome, periodic fever-aphtous stomatitis-pharyngitis-adenopathy syndrome.