[A case of multiple pulmonary arteriovenous fistulae associated with splenic abscess]

A 51-year-old female was admitted with high grade fever, cyanosis and hypoxemia. The chest X-ray showed nodular shadows on bilateral lung fields. Beta-streptococci were found on culture from the blood, and the fever fell after administration of both antibiotics and corticosteroid. Pulmonary angiography revealed four arteriovenous fistulae on bilateral lung fields. On abdominal ultrasonography and CT scan, a hypoechoic lesion with an irregular wall and varying internal echogenicity was detected within the spleen. This lesion changed in size and shape during the clinical course and diminished with improvement in the patient's condition. These findings were compatible with splenic abscess. Splenic abscess with pulmonary arteriovenous fistulae is rare.