title: Brain abscess caused by pulmonary arteriovenous fistulas without Rendu-Osler-Weber disease.
abstract: A 52-year-old man was admitted with a brain abscess in the left basal ganglia. He had a paradoxical brain embolic mechanism owing to a pulmonary arteriovenous fistula (PAVF) and was diagnosed as having a right-to-left shunt by transesophageal echocardiography (TEE) and transcranial color Doppler (TCD) with saline contrast medium. We determined that the brain abscess was caused by the PAVFs without Rendu-Osler-Weber disease. TEE and TCD with saline contrast medium were very useful for identifying the presence of the right-to-left shunt that caused the brain abscess.
authors.affiliation: Department of Neurology, Arao Municipal Hospital, Arao. hkawanoo@gmail.com
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kawano
authors.forename: Teruyuki
authors.initials: T
authors.lastname: Hirano
authors.forename: Koichi
authors.initials: K
authors.lastname: Ikeno
authors.forename: Isao
authors.initials: I
authors.lastname: Fuwa
authors.forename: Makoto
authors.initials: M
authors.lastname: Uchino
mesh_terms: D000792:Angiography; D001164:Arteriovenous Fistula / Q000150:complications* / Q000175:diagnosis; D001922:Brain Abscess / Q000175:diagnosis / Q000209:etiology*; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000002:abnormalities*; D011667:Pulmonary Veins / Q000002:abnormalities*; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000175:diagnosis*; D017585:Ultrasonography, Doppler, Transcranial