A case of diffuse telangiectatic pulmonary arteriovenous malformations treated surgically

: A 19-year-old woman admitted for hemoptysis had remarkable hypoxemia. Pulmonary artery angiography indicated diffuse telangiecatic arteriovenous malformations in the left upper lobe and part of the left lower lobe. The shunt ratio was calculated as 48.7%. Many patients of this diffuse telangiecatic type have a poor outcome, because of its seriousness, difficulty to treat and high risk of complications. In this patient, it was judged that embolization was impossible due to the form of the lesions. We performed resection of left upper lobe and a part of left lower lobe. After the operation, hypoxemia improved remarkably, as well as the shunt ratio (28.8%). No clinical sign of recurrence has been observed two years after the operation.