Figure 2: Air space consolidation associated with an air-bronchogram in a patient with stage 4 sarcoidosis. Axial high resolution computed tomography (HRCT) (a) shows mediastinal lymphadenopathy. (b) Several large, ill-defined nodules and areas of consolidation resulting from the confluence of lung nodules are noted in both lung fields. There is small low-attenuation spaces that correspond to the spaces between partially coalescent small nodules are visible peripherally giving rise to the so-called sarcoid galaxy sign (not well seen on this older HRCT. A pleural plaque like peripheral shadow is noted (arrow). Also, note subtle ground-glass appearance