[Antineutrophil cytoplasmic antibodies positivity in a case of idiopathic pulmonary haemosiderosis]. / Positivité des anticorps anti-cytoplasme des polynucléaires neutrophiles au cours d'une hémosidérose pulmonaire idiopathique.

ABSTRACT

Idiopathic pulmonary haemosiderosis is a rare disease of unknown etiopathogeny which is characterized by hemoptysis due to alveolar haemorrhage. We report the case of a 16 years-old girl with idiopathic pulmonary haemosiderosis, diagnosed through clinical, radiological, cytological and histopathological data. The finding of myeloperoxydase-anti-neutrophil cytoplasmic antibodies (ANCA) positivity led us to suspect an associated vasculitis which was not further demonstrated.