Cat scratch disease in 2 siblings presenting as acute gastroenteritis

The cases of 2 siblings with cat scratch disease are described who presente d with symptoms suggestive of acute febrile gastroenteritis. The first pati ent, a 7.5-y-old girl, developed mesenteric lymphadenitis, hepatosplenic gr anulomas and osteolytic bone lesions only late in the course of her protrac ted illness. Her 3-y-old brother had a shorter, self-limited illness withou t complications. Cat scratch disease is often unrecognized and the full spe ctrum of its clinical manifestations remains to be investigated.