====== PFAPA ====== >Periodic fever, aphthous stomatitis, pharyngitis and adenitis syndrome [PFAPA] is a medical condition, typically starting in young children, in which high fever occurs periodically at intervals of about 3–5 weeks, frequently accompanied by aphthous-like ulcers, pharyngitis and/or cervical adenitis (cervical lymphadenopathy). The syndrome was described in 1987 and named two years later."\\ \\ Source : [[https://en.wikipedia.org/wiki/Periodic_fever,_aphthous_stomatitis,_pharyngitis_and_adenitis|Wikipedia]] PFAPA is the most common periodic fever syndrome in children, but its cause(s) and its pathogenesis are currently unknown. Suggested possible causes include problematic genetics and/or effects of previous infections. Research from 2020 suggests that [[content:medicine:diseases:a-f:behcets_disease]] may be on a 'common spectrum' along with PFAPA - and both could be different manifestations of the same 'spectrum disorder'. See: [[https://www.pnas.org/content/early/2020/06/08/2002051117|Common genetic susceptibility loci link PFAPA syndrome, Behçet’s disease, and recurrent aphthous stomatitis]] PNAS, 117 (25) 14405-14411