Other non-neoplastic disease
Reviewers: Dr. Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 9 November 2011, last major update October 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.
● Detect by Xray
● Often multiple lesions, most commonly in right lower and middle lobe
● Probably congenital from persistent anastomotic fetal capillaries
● Shunting of blood between arterial and venous circulations may be asymptomatic or cause bruit, cyanosis, polycythemia and low arterial oxygen content
● Usually detected in patients 10 to 20 years old
● Often patients have Osler-Rendu-Weber disease
● Excision or transcatheter embolization
● Large vascular channels with arteriovenous connections
● Abnormal vessels with excess or deficiency of smooth muscle, making it difficult to differentiate veins and arteries
End of Lung-nontumor > Other non-neoplastic disease > Arteriovenous fistula
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