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KMID : 1039420160500050390
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Journal of Pathology and Translational Medicine
2016 Volume.50 No. 5 p.390 ~ p.393
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Pulmonary Arteriovenous Fistula: Clinical and Histologic Spectrum of Four Cases
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Ahn Soo-Min
Han Joung-Ho
Kim Hong-Kwan
Kim Tae-Sung
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Abstract
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Pulmonary arteriovenous fistula (PAVF) is abnormally dilated vessels that provide a right-to-left shunt between pulmonary artery and pulmonary vein and is clinically divided into simple and complex type. Here, we report four cases of surgically resected sporadic PAVFs presenting various clinical and histologic spectrums. Cases 1 (a 57-old-female) and 2 (a 54-old-female) presented as incidentally identified single aneurysmal fistulas and the lesions were surgically removed without complication. On the other hand, case 3 (an 11-old-male) showed diffuse dilated vascular sacs involving both lungs and caused severe hemodynamic and pulmonary dysfunction. Embolization and surgical resection of the main lesion failed to relieve the symptoms. Case 4 (a 36-old-male) had a localized multiloculated cyst clinically mimicking congenital cystic adenomatoid malformation. Microscopically, the lesion consisted of dilated thick vessels, consistent with the diagnosis of fistulous arteriovenous malformation/hemangioma.
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KEYWORD
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Lung, Arteriovenous fistula, Arteriovenous malformations
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