Ayerza-Arrilaga syndrome is an obsolete eponym used to indicate a variety of Ayerza's syndrome, when due to chronic bronchopulmonary syphilis and to a syphilitic obliterans sclerosis of the pulmonary artery. This term is often mixed up with Ayerza's syndrome.
Ayerza described the condition in 1901 in his clinical lectures Cardiacos negros. His student Arrilaga subsequently wrote a thesis in 1912 in which he correlated the clinical findings with sclerosis of the pulmonary artery.
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