A case of pregnancy associated hypereosinophilia with hyperpermeability symptoms.

Background: Hypereosinophilia commonly reflects an allergic, infectious, or neoplastic disease, and is a rare complication during pregnancy.

Case: A 27-year-old pregnant woman was referred to our hospital due to dyspnea at 10 weeks' gestation. Ultrasound examination showed the presence of pericardial effusion, pleural effusion, and ascites. Fluid transfusion, diuretic administration, and oxygen supplementation gradually improved the symptoms. Thereafter, the blood eosinophil count increased acutely and the fetus died. Following cessation of pregnancy the blood eosinophil count gradually decreased. Laboratory examinations did not assist the diagnosis of eosinophilia.

Conclusion: This is the first case of hypereosinophilia associated with the life-threatening hyperpermeability symptoms, i.e., pericardial effusion, pleural effusion, and ascites, during early pregnancy.