A patient with relapsing pneumonia

SummaryBronchiolitis obliterans organizing pneumonia (BOOP) is an inflammatory lung disease characterised by polypoid masses of granulation tissue within bronchioles, alveolar ducts and alveoli. Most commonly BOOP is idiopathic, but it can be induced by a variety of conditions. We report a case of BOOP in a 37-year-old patient with relapsing pneumonia. The patient has two daughters with cystic fibrosis and although confirmatory testing was negative, we belief that the patient has a mild variant of cystic fibrosis. To our knowledge there is only one other case report describing BOOP in a patient with cystic fibrosis