Biliary pseudolithiasis in a child associated with 2 days of ceftriaxone therapy.

Ceftriaxone, a third-generation cephalosporin, is known to induce reversible precipitations in the gallbladder of children. In general, radiologic signs and symptoms will develop after 9-11 days of treatment. The authors report a case where 48 h of therapy were sufficient to develop a biliary pseudolithiasis. Clinicians and radiologists should be aware of this complication which mimics true cholelithiasis.