Bilateral Pulmonary Thromboembolism:An Unusual Presentation of Infection withInfluenza A (H1N1) Virus

Swine flue is a highly contagious acute respiratory diseasecaused by a subtype of influenza a virus. herein we presentthree patients with h1n1 infection complicated with pulmonarythromboembolism. the patients had chest pain and unexplaineddyspnea. imaging studies showed bilateral hilar predominance.computed tomographic angiography confirmed bilateral thromboembolism(an unusual presentation of h1n1 infection). we didnot find any predisposing factor including endothelial damage,stasis, or hypercoagulable state in these patients. they did notreceive any medication. after anticoagulation and treatment withoseltamivir, all the patients were discharged in good condition.to the best of our knowledge bilateral pulmonary thromboembolismhas not been reported in english language literature inpatients with swine flu infection. appropriate diagnosis andtreatment will be life saving in this condition.