Acute respiratory failure due to diffuse alveolar hemorrhage in mycoplasma pneumonia

Acute respiratory failure from mycoplasma pneumonia is uncommon, because community-acquired pneumonia from myco-plasma pneumonia is typically not severe in patients without underlying disease. In addition, alveolar hemorrhage is a rare man ifes-tation in these cases. We describe a case of acute respiratory failure that required mechanical ventilation due to diffuse alveolar hemorrhage in an immunocompetent patient with mycoplasma pneumonia. (Korean J Med 79:428-431, 2010)