[Yersinia enterocolitica infection. On the differential diagnosis of acute lower right-sided abdominal pain].

Yersinia enterocolitica is a pathogenic organism, hitherto being of minor clinical interest only. In all unclear abdominal complaints especially in the right middle or lower part of the abdomen a Yersinia enterocolitica infection should also be taken into consideration.--Specific diagnostic measures have to be taken and in a suspected case antibiotics should be administered.--In every case an appendectomy has to be performed and a lymphnode should be extirpated and sent for histologic and microbiological examination.