Respiratory failure secondary to organizing pneumonia in a patient with membranoproliferative glomerulonephritis and lung haemorrhage.

We report the case of a woman with membranoproliferative glomerulonephritis type I who presented with acute respiratory failure secondary to alveolar haemorrhage. The persistence of the respiratory failure, once the alveolar haemorrhage had ceased, was apparently due to diffuse alveolar damage in organization. The recognition of this proliferative reaction through the performance of transbronchial biopsy allowed the initiation of a correct treatment with which a favourable response was obtained.