Fig. 4. Mediastinal pleural plaques in asbestos-exposed individuals. A Fig. 4. Mediastinal pleural plaques in asbestos-exposed individuals. A. Thin pleural plaque (arrow) is noted along left mediastinal pleura. Also noted are thin sheet-like plaques along posterior chest wall (arrowheads). B. Heavily calcified plaques are noted along both sides of mediastinum. Tiny plaque is noted in left posterior chest wall (arrowhead). Korean J Radiol. 2015 Sep-Oct;16(5):1142-1152. http://dx.doi.org/10.3348/kjr.2015.16.5.1142