[Sternocostoclavicular hyperostosis--case reports and differential diagnosis].

Sternocostoclavicular hyperostosis (SCCH) is a disorder related to collagenoses. SCCH is typically characterised by the triad of swelling of the sternoclavicular and/or sternocostal joints of the first or second rib, palmar and plantar pustulosis (PPP), only limited elevation of inflammation indicating laboratory parameters. Till today the etiology is unclear and no causal therapy is known. Symptomatic treatment consists of administration of NSAID and cortisone, irradiation and even limited resection of the clavicle and rib.