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Idiopathic pulmonary hemosiderosis. Case report with pulmonary function tests and cardiac catheterization data.

A 23-year-old white man presented with a 2-month history of cough and wheezing. Aside from an arterial-oxygen tension of 50 mm Hg and vital capacity 64 per cent of normal, other clinical and laboratory parameters were normal. The patient's condition worsened steadily, with development of congestive heart failure during the next 2 months, repeated hemoptyses, onset of atrial fibrillation, and a steady downhill course to death. Cardiac catheterization revealed marked pulmonary arterial hypertension. Autopsy confirmed the diagnosis of idiopathic pulmonary hemosiderosis.