We report a case involving a 15-year-old girl with atypical, clinically uns
uspected cat scratch disease (CSD) presenting as isolated posterior pancrea
tic duodenal lymphadenitis, fever, and abdominal pain. The serological, abd
ominal ultrasonographic, and CT findings, as well as clinical and epidemiol
ogical data, indicate that B. henselae was likely an etiologic agent of CSD
in our patient.