The authors describe a rare case report of a female patient with acute appendicitis, where the course was masked by gastroenteritis complicated with sepsis with a simultaneous course of imported infection with Salmonella type C (Kentucky). The attention is drawn to the fact that even such frequent abdominal emergency as appendicitis is, may cause diagnostic hesitations, if it is masked by a simultaneous alimentary infection. In spite of the application of a broad scope of examination methods a final decision of indication for laparotomy depends on clinical findings of the examining surgeon.

        Key words: appendicitis – salmonellosis – salmonellosis and abdominal emergency