Swyer–james Syndrome: Demonstration by 64-slice 3d Mdct Angiography and Coronal Mpr Ct Imaging

Swyer – James syndrome (SJS) was first described by Swyer and James in a 6-year-old child in 1953 (1). The following year, MacLeod reported nine patients with unilateral pulmonary hyperlucency (2). SJS is a rare disease characterized by a hyperlucent lung or lobe, usually of normal or small size, associated with air trapping and diminutive pulmonary vascularization (3). Swyer-James syndrome appears to be a consequence of bronchiolitis obliterans resulting from bacterial or viral infection during childhood, which results in subsequent underdevelopment of the involved portion of the lung (4,5). Computed tomography (CT) by its ability to show bronchial patency, parenchymal lesions, and diminutive vascularization has been advocated as a valuable noninvasive modality in confirming the diagnosis of SJS (6,7). The multidetector computed tomography (MDCT) is considered a dramatic development in CT imaging that has direct implications in the three dimensional (3D) imaging of various systems, in particular the vascular system. The advantages of MDCT are an enormous increase in imaging acquisition speed, more coverage of the patient, SWYER–JAMES SYNDROME: DEMONSTRATION BY 64-SLICE 3D MDCT ANGIOGRAPHY AND CORONAL MPR CT IMAGING