Factor VII is a new coagulation factor replacement therapy. It has permitted the practice of invasive procedures which were up until recently associated with a huge risk of bleeding in patients with hemophilia with inhibitors. Our case illustrates factor replacement therapy failure in a 13-year-old child operated on for hepatic cysts associated with a pelvic cyst. Major bleeding occurred postoperatively requiring several transfusions, an increase in dosage of factor VII, and administration of a heavy dose of factor VIII as a last resort. This case highlights the possibility of failure of factor replacement therapies constituting a life-threatening situation in which alternatives are few.

Les diverticules duodénaux sont assez fréquents, la majorité reste asymptomatique. Les complications les plus fréquemment rapportées sont les hémorragies et les pancréatites. Contrairement aux diverticules coliques, la survenue de diverticulite est rare. Nous rapportons le cas d'une infection d'un gros diverticule duodénal en mettant le point sur la difficulté de la prise en charge de cette entité pathologique.