An unusual cause of thrombotic thrombocytopenic purpura in pregnancy.

Thrombotic thrombocytopenic purpura is a disseminated form of thrombotic microangiopathy. Although most cases are assumed to be idiopathic, its association with malignancy is well-recognized and it usually occurs at the terminal stage of cancer. The condition is characterized by microangiopathic hemolytic anemia and thrombocytopenia. It is generally idiopathic, and its association with adenocarcinomas is extremely rare.