Swyer-James-Macleod Syndrome Presenting with Pulmonary Hypertension

Swyer–James–MacLeod Syndrome is a rare condition as a result of childhood pulmonary infection, especially bronchiolitis obliterans or viral bronchiolitis/pneumonia. It appears as increased radiolucency on chest Xray, in the absence of obstructing lesions and can be confused for other thoracic disease processes such as a large pulmonary emboli or congenital bronchial and/or pulmonary vasculature malformations. We introduce a 46-year-old male patient presented with symptoms and signs of pulmonary hypertension which was initially misdiagnosed as chronic pulmonary emboli. This case highlights the possibility of pulmonary hypertension to be one of the cardinal manifestations of this syndrome, and outlines the significance of application of computed tomography in confirming the diagnosis of SJMS and in eliminating other diseases.