title: Multiple microscopic pulmonary arteriovenous connections in the lungs presenting as cyanosis.
mesh_terms: D000328:Adult; D001164:Arteriovenous Fistula / Q000150:complications* / Q000473:pathology; D003490:Cyanosis / Q000209:etiology*; D006801:Humans; D008099:Liver / Q000473:pathology; D008168:Lung / Q000473:pathology; D008171:Lung Diseases / Q000150:complications*; D008297:Male