The Kasabach-Merritt syndrome was first described in children with cut
aneous hemangiomas, but it can exceptionally be associated with viscer
al hemangiomas, especially in adults. Clotting and fibrinolysis within
the hemangioma are thought to cause the coagulopathy observed in the
so-called Kasabach-Merrit syndrome. This localised from of intra-vascu
lar coagulation can progress to a secondary increased systemic fibrino
lysis with fatal outcome for 20 to 30% of the patients. A transient co
ntrol of hematologic abnormalities can frequently be obtained with blo
od product support (platelets, fibrinogen, fresh plasma, cryoprecipita
tes) and heparinotherapy. But in the adult, the only radical alternati
ve is surgical excision if technically feasible. We reported here the
case of a 43 year-old woman with a giant unresecable hepatic hemangiom
a complicated with a Kasabach-Merrit syndrome.