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Ayerza's disease

(ə-yûrsəz, ä-yĕr-)
n.
  1. A condition resembling erythremia but resulting from primary pulmonary arteriosclerosis or primary pulmonary hypertension, characterized by chronic cyanosis, chronic dyspnea, and enlargement of the liver and spleen.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.