Cryptogenic Organizing Pneumonia (COP)

Cryptogenic organizing pneumonia (COP) is characterized by the observation of a pattern of organizing pneumonia with no cause or etiologic context.¹

Previously referred to as bronchiolitis obliterans organizing pneumonia or idiopathic bronchiolitis obliterans organizing pneumonia (BOOP)², characterized by organized swirls or plugs of fibrous and inflammatory tissue in the absence of infection. A small proportion of patients will experience spontaneous resolution²

Few cases of COP progress to respiratory failure and death.²

• Diagnosis is often delayed 6-12 months¹
• Patients typically present with symptoms of a lower respiratory tract infection and are often given multiple courses of antibiotics before they are diagnosed with COP²

COP is most commonly misdiagnosed as infectious pneumonia.¹