Fatal splenic rupture in a pregnant woman with hemoglobin C/beta-thalassemia and myeloid metaplasia.

Splenic rupture with intraperitoneal hemorrhage is a fatal condition that is rarely encountered during the third trimester of pregnancy; its pathogenetic mechanisms and causes are largely unknown. We report a case of splenic rupture in a pregnant woman that caused the death of the mother and child. The patient was a carrier of double heterozygosis for hemoglobin C/beta-thalassemia. Spleen and liver enlargement due to extramedullary hematopoiesis was found at autopsy. Our data suggest that rare and hidden hematologic disorders should be considered as possible causes of splenic enlargement and rupture during pregnancy.