title: Pulmonary arteriovascular malformation: a rare cause of unexplained hypoxia and acute dyspnoea in young patients.
abstract: Pulmonary arteriovenous malformations (PAVMs) are anomalous vascular connections between arteries and veins in the lung and comprise of two types, simple and complex. PAVMs are associated with congenital conditions such as hereditary haemorrhagic telengiectasia along with acquired causes. We present a case of a 26-year-old man who presented with dyspnoea, palpitations and decreased oxygen saturation as an initial presentation of PAVM, which was treated successively with embolisation.
authors.affiliation: Department of Medicine, Aga Khan Hospital, Karachi, Sindh, Pakistan.
authors.forename: Nousheen
authors.initials: N
authors.lastname: Iqbal
authors.affiliation: Aga Khan University Hospital, Karachi, Sindh, Pakistan.
authors.forename: Karim Abdur
authors.initials: KA
authors.lastname: Rehman
authors.affiliation: Department of Pulmonary Medicine, Aga Khan University Hospital, Karachi, Sindh, Pakistan.
authors.forename: Javaid Ahmed
authors.initials: JA
authors.lastname: Khan
authors.affiliation: Department of Radiology, Aga Khan University, Karachi, Sindh, Pakistan.
authors.forename: Tanveer Ul
authors.initials: TU
authors.lastname: Haq
mesh_terms: D000328:Adult; D001164:Arteriovenous Fistula / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D004417:Dyspnea / Q000175:diagnosis* / Q000209:etiology; D004621:Embolization, Therapeutic; D006469:Hemoptysis / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D000860:Hypoxia / Q000175:diagnosis / Q000209:etiology; D008168:Lung / Q000473:pathology*; D008297:Male; D010100:Oxygen / Q000378:metabolism*; D011651:Pulmonary Artery / Q000002:abnormalities*; D011667:Pulmonary Veins / Q000002:abnormalities*; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000150:complications*
chemical_list: D010100:Oxygen