%0 Case Reports
%T Large pulmonary arteriovenous malformation lost to follow-up with 10 years of asymptomatic interval growth: A case report.
%A Kemper NW
%A Myers AC
%A Thompson HK
%A Baah NO
%A Contractor S
%J Radiol Case Rep
%V 19
%N 8
%D 2024 Aug
%M 38779197
暂无%R 10.1016/j.radcr.2024.04.070
%X Pulmonary arteriovenous malformations, previously considered a rare condition, have been increasingly identified in asymptomatic patients over the past 2 decades. Usually congenital and associated with hereditary hemorrhagic telangiectasia, these fistulae result in right-to-left shunting of blood by abnormal communication of pulmonary arteries and veins lacking capillary beds. Clinical findings of right-to-left shunting in the presence of feeding and draining vessels identified on imaging confirm the diagnosis, for which the first-line therapy is embolization. This report highlights the presentation and management of a large asymptomatic PAVM detected incidentally in a patient who was lost to follow-up for 10 years and represented with acute hypoxic respiratory failure secondary to a viral infection with an interval increase of PAVM size.